Ronald Hanson's Profile | Stanford Profiles

Ronald Hanson's Profile | Stanford Profiles
Ronald Hanson
Clarence J. and Patricia R. Woodard Professor of Mechanical Engineering
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Bio
Professor Hanson has been an international leader in the development of laser-based diagnostic methods for combustion and propulsion, and in the development of modern shock tube methods for accurate determination of chemical reaction rate parameters needed for modeling combustion and propulsion systems. He and his students have made several pioneering contributions that have impacted the pace of propulsion research and development worldwide. During his career at Stanford, Professor Hanson has successfully managed over 150 research contracts and grants, with a total value well over $75 million. He and his students have authored over 1450 publications.
Professor Hanson is a fellow of American Society of Mechanical Engineers, American Institute of Aeronautics and Astronautics, and the Optical Society of America. He has received the Egerton Gold Medal and is an Inaugural Fellow of the Combustion Institute, and has been elected to the National Academy of Engineering. He is also an Inaugural Distinguished Fellow of the International Shock Wave Institute and the winner of the R. Soloukhin Medal from the Institute for Dynamics of Explosions and Reactive Systems. He is, perhaps, most happy about the recognition that his students have received for their publications, including Best Paper Awards from the AIAA Ground Test Conference, AIAA Propellant and Combustion Section, and the Combustion Institute Silver Medal. Recent awards include the 2023 Julius Springer Award for Applied Physics, a 2023 AIAA SciTech Outstanding Paper Award, and the selection as an Inaugural Distinguished Fellow from the The International Shock Wave Institute in 2022.
Professor Hanson has graduated over 125 Ph.D. candidates and supervised over 20 postdoctoral scholars and research associates. Thirty-four of his students have gone on to become professors including: Ferris (Princeton), Varghese (University of Texas at Austin), Louge (Cornell University), Kirby (Cornell University), Wooldridge (University of Michigan), Mertens (Trinity College), Song (Yonsei University), Rossmann (Lafayette College), Sanders (University of Wisconsin-Madison), Ben-Yakar (University of Texas at Austin), Webber (University of Texas at Austin), Oehlschlaeger (Rensselaer Polytechnic Institute), Ma (University of Virginia), Koch (Trine University), Lee (University of Illinois Urbana-Champaign), Rothamer (University of Wisconsin-Madison), Petersen (Texas A&M), Seitzman (Georgia Tech), Linne (University of Edinburgh), Yoo (SUNY Buffalo), Porter (Colorado School of Mines), Liu (University of Washington), Vasu (University of Central Florida), Ren (Chinese University of Hong Kong), Rieker (University of Colorado Boulder), Farooq (KAUST), Goldenstein (Purdue University), Spearrin (University of California at Los Angeles), Sun (Tongji University), Chao (Tsinghua University), Wang (Peking University), and Shao (Beijing Institute of Technology). He is currently supervising approximately 30 M.S. and Ph.D. graduate students.
Academic Appointments
Professor,
Mechanical Engineering
Member,
Bio-X
Affiliate,
Precourt Institute for Energy
Honors & Awards
Julius Springer Award for Applied Physics, Springer Publishing (2023)
SciTech Outstanding Paper Award, American Institute of Aeronautics and Astronautics (2023)
Dedicated Issue of Combustion and Flame, Combustion Institute (2021)
Inaugural Distinguished Fellow, International Shock Wave Institute (2021)
Outstanding Paper Award, Measurement Science and Technology (2021)
100th Beacon Distinguished Lecture, Tsinghua University (2020)
Distinguished Lecture Award, Pratt and Whitney (2019)
Distinguished Paper, 37th Comb. Symp., Combustion Institute (2018)
Inaugural Fellow, The Combustion Institute (2018)
Energy Systems Award, American Institute of Aeronautics and Astronautics (2016)
Hue-Shen Tsien Professorship, China Academy of Science, Inst. of Mechanics (2016)
David Goodwin Memorial Lecture, California Institute of Technology (2015)
Milton Van Dyke Award, American Physical Society (2015)
Honorary Professorship, Xi'an Jiaotong University, China (2014)
Honorary Professorship, Northwestern Polytechnic University, China (2014)
Arch T. Colwell Award, Society of Automotive Engineers (2013)
Outstanding Paper of 2013, Journal of Measurement, Science and Technology (2013)
Most-cited Paper Award, Combustion and Flame (2012)
Top 20 Most Published Author (Past 50 years), Applied Optics (2012)
Best Paper in Propellants and Combustion, American Institute of Aeronautics and Astronautics (2011)
Crocco Lecture, Princeton (2011)
Fowler Lecture, Texas A&M (2011)
R.I. Soloukhin Award, Institute for the Dynamics of Explosions and Reactive Systems (2011)
A. Hottel Memorial Lecture, 33rd International Combustion Symposium (2010)
Senior Scientist Award, Alexander von Humboldt Foundation (2010)
Alfred Egerton Gold Medal of the Combustion Institute, Combustion Institute (2008)
Propellants and Combustion Award, American Institute of Aeronautics and Astronautics (2005)
Fellow, American Society of Mechanical Engineers (2004)
Elected to National Academy of Engineering, National Academy of Engineering (2002)
Silver Medal, Combustion Institute (2002)
Best Paper of 2000, Journal of Measurement Science and Technology (2000)
Best Paper Award, Ground Test Conference (AIAA) (1997)
Fellow, American Institute of Aeronautics and Astronautics (1997)
Aerodynamic Measurement Technology Award, American Institute of Aeronautics and Astronautics (1996)
Clarence and Patricia Woodard Professor of Mechanical Engineering, Stanford University (1994)
Fellow, Optical Society of America (1990)
Boards, Advisory Committees, Professional Organizations
Inaugural Fellow, The Combustion Institute (2018 - Present)
Fellow, American Society of Mechanical Engineers (2004 - Present)
Elected Member, National Academy of Engineering (2002 - Present)
Fellow, American Institute of Aeronautics and Astronautics (1997 - Present)
Fellow, Optical Society of America (1990 - Present)
Professional Education
M.Sc., Arizona State University, Mechanical Engineering (1965)
B.S., Oregon State University, Mechanical Engineering (1961)
Ph.D., Stanford University, Aeronautics and Astronautics (1968)
Contact
Academic
rkhanson@stanford.edu
University - Faculty
Department: Mechanical Engineering
Position: Professor
452 ESCONDIDO MALL
STANFORD,
California
94305
(650) 723-6850
(office)
(650) 723-1748 (fax)
Administrative Contact
Tasha Jackson
Thermosciences Group Administrator
tashaja1@stanford.edu
(650) 721-3276
(office)
Additional Info
Mail Code:
3032
Other Names:
Ron Hanson
ORCID:
Links
Curriculum Vitae PDF
Current Research and Scholarly Interests
Professor Hanson has been an international leader in the development of laser-based diagnostic methods for combustion and propulsion, and in the development of modern shock tube methods for accurate determination of chemical reaction rate parameters needed for modeling combustion and propulsion systems. He and his students have made several pioneering contributions that have impacted the pace of propulsion research and development worldwide. During his career at Stanford, Professor Hanson has successfully managed over 100 research contracts and grants, with a total value well over $50 million. He and his students have authored over 1200 publications.
2025-26 Courses
Optical Diagnostics and Spectroscopy
ME 364 (Win)
Optical Diagnostics and Spectroscopy Laboratory
ME 367 (Spr)
Thermofluids, Energy, and Propulsion Research Seminar
ME 390A (Aut)
Independent Studies (15)
Directed Research and Writing in Aero/Astro
AA 190 (Aut, Win, Sum)
Engineering Problems
ME 391 (Aut, Win, Spr, Sum)
Engineering Problems and Experimental Investigation
ME 191 (Aut, Win, Spr, Sum)
Experimental Investigation of Engineering Problems
ME 392 (Aut, Win, Spr, Sum)
Honors Research
ME 191H (Aut, Win, Spr, Sum)
Independent Study in Aero/Astro
AA 199 (Aut, Win, Sum)
Master's Directed Research
ME 393 (Aut, Win, Spr, Sum)
Master's Directed Research: Writing the Report
ME 393W (Aut, Win, Spr, Sum)
Ph.D. Research Rotation
ME 398 (Aut, Win, Spr, Sum)
Ph.D. Teaching Experience
ME 491 (Aut, Win, Spr)
Practical Training
ME 199A (Aut, Win, Spr, Sum)
Practical Training
ME 299A (Aut, Win, Spr, Sum)
Practical Training
ME 299B (Aut, Win, Spr, Sum)
Problems in Aero/Astro
AA 290 (Aut, Win, Spr)
Problems in Aero/Astro
AA 290S (Sum)
Prior Year Courses
2024-25 Courses
Nonequilibrium Processes in High-Temperature Gases
ME 362B (Win)
Optical Diagnostics and Spectroscopy Laboratory
ME 367 (Spr)
2023-24 Courses
Optical Diagnostics and Spectroscopy
ME 364 (Win)
Optical Diagnostics and Spectroscopy Laboratory
ME 367 (Spr)
2022-23 Courses
Nonequilibrium Processes in High-Temperature Gases
ME 362B (Win)
Optical Diagnostics and Spectroscopy Laboratory
ME 367 (Spr)
Thermofluids, Energy, and Propulsion Research Seminar
ME 390A (Aut)
Stanford Advisees
Doctoral Dissertation Reader (AC)
Andy Huynh
Postdoctoral Faculty Sponsor
Miguel Figueroa Labastida
Doctoral Dissertation Advisor (AC)
Sarah Baird,
Spencer Barnes
Pujan Biswas
, Thien Bui, Dylan Drescher,
Zev Granowitz
Andrew Klingberg
, Konstantinos Kotsarinis, Nathan Laing, Jin Lee, Chengze Li, Devin Merrell,
Alka Panda
, Padmanabha Prasanna Simha,
Lauren Simitz
Master's Program Advisor
Abdullah Alhussain
, Sam Chen,
Luca De Donno
, Nathaniel Giessner, Gavin Miller, Sam Xie
Doctoral (Program)
Gibson Clark
, Atticus Cummings, Josh Lipman,
Thomas Wooldridge
All Publications
Applications of hydrazine for the study of NH2 kinetics-II: Self-reaction of NH2 radicals
COMBUSTION AND FLAME
Rault, T. M., Simha, P., Streicher, J. W., Strand, C. L., Hanson, R. K.
2026
288
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DOI 10.1016/j.combustflame.2026.114969
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Web of Science ID 001731016700001
Applications of Hydrazine for the study of NH2 kinetics-I: N2H4 pyrolysis reactions
COMBUSTION AND FLAME
Rault, T. M., Simha, P., Streicher, J. W., Strand, C. L., Hanson, R. K.
2026
288
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DOI 10.1016/j.combustflame.2026.114968
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Web of Science ID 001733995900001
Direct Laser Absorption Measurements of NH3-Relevant Pyrolysis Reactions.
The journal of physical chemistry. A
Rault, T. M., Clees, S., Merrell, D. P., Hanson, R. K.
2026
Abstract
The pyrolysis kinetics of NH3 and NH3-relevant radicals are of importance for the implementation of NH3 as a fuel. The pyrolysis of NH2 radicals was therefore studied behind reflected shock waves using 7-243 ppm of N2H4 to generate NH2 in bath gases of Ar and N2. Post-shock conditions spanned 2900-4600 K and 0.41-0.94 atm. Sensitive laser absorption diagnostics allowed NH and NH2 concentrations to be monitored simultaneously under highly dilute conditions. Sensitivities of measured time-histories to secondary reactions were therefore suppressed, enabling low-uncertainty measurements of reaction rates for NH2 + M NH + H + M (R1), NH + M N + H + M (R2), and the first direct, high-temperature measurements of NH + H N + H2 (R3) in the written direction. The first chaperon efficiency measurements for N2 relative to Ar (etaN2) were obtained for R1 and R2. Rate constant expressions and their associated temperature ranges as well as etaN2 values are summarized below: kNH2+ArNH+H+Ar(T)=1014.6±0.4⁡exp⁡⁡(-(73±6)/(RT))cm3mol-1s-1(2900-4600K,etaN2=4.4±0.7) kNH+ArN+H+Ar(T)=1014.0±0.2⁡exp⁡⁡(-(71±3)/(RT))cm3mol-1s-1(2500-4600K,etaN24±2) kNH+HN+H2(T)=1015.1±0.3exp⁡⁡(-(17±4)/(RT))cm3mol-1s-1(1650-4600K).
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DOI 10.1021/acs.jpca.5c08194
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PubMedID 41704131
Multi-parameter, kHz rate spectrally resolved NO PLIF in a supersonic jet
OPTICS LETTERS
Barnes, S. C., Lee, J., Clees, S., Vandervort, J. A., Strand, C. L., Hanson, R. K.
2026
51 (4)
: 957-960
Abstract
Quantitative, high-bandwidth measurements of temperature, pressure, and velocity are needed to characterize high-speed flows and validate numerical simulations. To that end, this work demonstrates rapid, multi-parameter spectrally resolved planar laser-induced fluorescence (SR-PLIF) for spatially resolved, calibration-free measurements of these three key quantities using the gamma-bands of nitric oxide near 225.33 nm. The SR-PLIF technique was validated from 295-420 K and 3.48-20.4 kPa using a static gas cell and exhibits an average temperature and pressure error of 2% and 4%, respectively. The diagnostic was then used to study an underexpanded jet at rates up to 1 kHz and a spatial resolution of 220µm, with results showing favorable agreement with numerical simulations.
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DOI 10.1364/OL.582048
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Web of Science ID 001694932100006
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PubMedID 41686960
Experimental Measurement of the Rate Coefficient for OCS + M, with M = Ar, He, N2, CO2 in a Shock Tube Using Laser Absorption Spectroscopy.
The journal of physical chemistry. A
Panda, A., Biswas, P. A., Simitz, L. V., Streicher, J. W., Strand, C. L., Hanson, R. K.
2026
Abstract
A comprehensive understanding of sulfur chemistry is crucial for the characterization and modeling of planetary atmospheres. The unimolecular decomposition of carbonyl sulfide (OCS + M = CO + S + M) is a critical reaction for the development of accurate photochemical models. In this study, we employ laser absorption spectroscopy (LAS)-based diagnostics in a shock tube to investigate the rate coefficient of OCS decomposition. Sensitive and interference-free diagnostics were developed to monitor OCS depletion at 2070.858 cm-1 and CO formation at 2115.628 cm-1. The reaction rate coefficient of OCS decomposition was measured over a temperature range of 1800-2500 K. This work represents the first experimental determination of OCS decomposition rates in bath gases pertinent to several planetary environments (i.e., He, N2, and CO2). Additionally, we characterize the pressure dependence of the reaction rate through measurements at 1, 2, and 8 atm. The rate constant measured at 2 atm for argon, k1,Ar, aligns with previous studies and is given by k1,Ar = 3.48 × 10-10 exp (-257kJ/RT) cm3 molecule-1 s-1. The relative Chaperone efficiencies at 2 atm were determined as k1,He/k1,Ar = 2.68, k1,N2/k1,Ar = 1.85, and k1,CO2/k1,Ar = 3.67 through our experiments. Our results provide new insights into OCS kinetics, marking the first systematic study of its pressure-dependent behavior in exoplanetary-relevant conditions. These findings, underscored by low experimental uncertainties (±9.0% for k1,Ar, ±12% for k1,He, ±18% for k1,N2, and ±24% for k1,CO2) reflect high-quality, repeatable measurements that will support sulfur chemistry atmospheric modeling and enhance the interpretation of spectroscopic observations from missions such as the James Webb Space Telescope (JWST).
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DOI 10.1021/acs.jpca.5c07383
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PubMedID 41608828
Laser Absorption Spectroscopy Studies of the Cyano Radical for Titan Entry Kinetics
JOURNAL OF THERMOPHYSICS AND HEAT TRANSFER
Chang, E., Merrell, D. P., Streicher, J. W., Hanson, R. K.
2026
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DOI 10.2514/1.T7358
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Web of Science ID 001666860400001
Collision induced absorption in HITRAN2024: Enhanced and improved data for atmospheric and planetary studies
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Terragni, J., Gordon, I. E., Adkins, E. M., Boulet, C., Campargue, A., Chistikov, D., Finenko, A., Finkenzeller, H., Fleurbaey, H., Hargreaves, R. J., Hanson, R. K., Hartmann, J., Klingberg, A., Kohler, E., Koroleva, A. O., Mondelain, D., Piccioni, G., Stefani, S., Strand, C. L., Tran, H., Turbet, M., Vigasin, A., Vitali, F., Volkamer, R., Wei, C.
2025
347
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DOI 10.1016/j.jqsrt.2025.109631
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Web of Science ID 001588394800001
Vibrational-state-resolved relaxation and chemistry of carbon monoxide and nitrogen mixtures from 2000-10 250 K probing carbon monoxide in the ground to twelfth excited vibrational levels (vol37, 096112 , 2025)
PHYSICS OF FLUIDS
Streicher, J. W., Merrell, D. P., Strand, C. L., Hanson, R. K., Aiken, T. T., Andrienko, D. A., Boyd, I. D.
2025
37 (12)
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DOI 10.1063/5.0311187
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Web of Science ID 001633845000014
Ring-amplified shock tube for variable-gain, multi-wavelength absorption spectroscopy
OPTICS EXPRESS
Strand, C. L., Merrell, D., Thoeny, A., Streicher, J. W., Hanson, R. K.
2025
33 (20)
: 42653-42676
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DOI 10.1364/OE.571994
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Web of Science ID 001589698900008
High temperature collisional broadening of the oxygen A-band for partners O₂, N₂, and Ar
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Merrell, D. P., Thoeny, A., Strand, C. L., Hanson, R. K.
2026
348
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DOI 10.1016/j.jqsrt.2025.109683
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Web of Science ID 001590481800003
Laminar flame speed measurements and laser absorption characterization of high-temperature, premixed ethane-air flames
APPLICATIONS IN ENERGY AND COMBUSTION SCIENCE
Ferris, A. M., Girard, J. J., Susa, A. J., Hanson, R. K.
2025
24
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DOI 10.1016/j.jaecs.2025.100378
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Web of Science ID 001583139000001
Vibrational-state-resolved relaxation and chemistry of carbon monoxide and nitrogen mixtures from 2000-10 250 K probing carbon monoxide in the ground to twelfth excited vibrational levels
PHYSICS OF FLUIDS
Streicher, J. W., Merrell, D. P., Strand, C. L., Hanson, R. K., Aiken, T. T., Andrienko, D. A., Boyd, I. D.
2025
37 (9)
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DOI 10.1063/5.0290858
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Web of Science ID 001564242200016
IR-HyChem: Towards modeling the high-T combustion behavior of aviation fuels using infrared spectra
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Biswas, P., Boddapati, V., Klingberg, A. R., Panda, A., Wang, H., Hanson, R. K.
2025
41
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DOI 10.1016/j.proci.2025.105792
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Web of Science ID 001546853400001
Laser-absorption sensor suite for crank-angle-resolved, in situ measurements in the exhaust of a high-performance internal combustion engine-I: temperature and H2O
APPLIED OPTICS
Clees, S., Santos, J. P., Vandervort, J. A., Strand, C. L., Hanson, R. K., Ghonim, A., French, B., Gilmour, A., Ferlet, X.
2025
64 (19)
: 5499-5508
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DOI 10.1364/AO.564692
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Web of Science ID 001524140000035
Laser-absorption sensor suite for crank-angle-resolved, in situ measurements in the exhaust of a high-performance internal combustion engine-II: CO, CO2, and unburned hydrocarbons
APPLIED OPTICS
Vandervort, J. A., Clees, S., Santos, J. P., Strand, C. L., Hanson, R. K., Ghonim, A., French, B., Gilmour, A., Ferlet, X.
2025
64 (19)
: 5509-5518
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DOI 10.1364/AO.564602
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Web of Science ID 001524140000036
Direct measurement of the NH₃+OH reaction rate behind incident and reflected shock waves
COMBUSTION AND FLAME
Zaczek, L. T., Clees, S., Hanson, R. K.
2025
277
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DOI 10.1016/j.combustflame.2025.114174
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Web of Science ID 001471969700001
Spatially-resolved atomic oxygen absorption and emission measurements in the Hypersonic Materials Environmental Test System
APPLIED PHYSICS B-LASERS AND OPTICS
Schwartz, T., Splinter, S. C., Rodrigues, N. S., Danehy, P. M., Samuels, K. E., Kostyk, C. B., Hanson, R. K.
2025
131 (6)
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DOI 10.1007/s00340-025-08476-1
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Web of Science ID 001485489900001
Temperature and Enthalpy Characterization of NASA Arcjet Using Oxygen and Nitrogen Absorption
JOURNAL OF THERMOPHYSICS AND HEAT TRANSFER
Finch, P. M., Granowitz, Z. N., Strand, C. L., Hanson, R. K., MacDonald, M. E., Hui, F. C. L., Gokcen, T.
2025
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DOI 10.2514/1.T7088
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Web of Science ID 001466756400001
Simultaneous spatially resolved temperature, pressure, and velocity measurements in high-enthalpy gas environments using spectrally resolved laser-induced fluorescence of potassium vapor (vol 131, 4, 2025)
APPLIED PHYSICS B-LASERS AND OPTICS
Vandervort, J. A., Barnes, S. C., Clees, S., Strand, C. L., Hanson, R. K.
2025
131 (4)
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DOI 10.1007/s00340-025-08440-z
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Web of Science ID 001449485600001
A laser-absorption diagnostic for O₂ concentration and temperature using a portable, tunable UV laser system
APPLIED PHYSICS B-LASERS AND OPTICS
Barnes, S. C., Clees, S., Vandervort, J. A., Rault, T. M., Streicher, J. W., Strand, C. L., Hanson, R. K.
2025
131 (4)
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DOI 10.1007/s00340-025-08444-9
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Web of Science ID 001449545700003
Simultaneous spatially resolved temperature, pressure, and velocity measurements in high-enthalpy gas environments using spectrally resolved laser-induced fluorescence of potassium vapor
APPLIED PHYSICS B-LASERS AND OPTICS
Vandervort, J. A., Barnes, S. C., Clees, S., Strand, C. L., Hanson, R. K.
2025
131 (3)
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DOI 10.1007/s00340-025-08404-3
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Web of Science ID 001420238200002
Measurements of high-temperature H2 laminar flame speeds across a wide range of pressure and Ar dilution for improved comparative evaluation of chemical kinetic models
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Figueroa-Labastida, M., Zheng, L., Streicher, J. W., Hanson, R. K.
2025
102
: 411-429
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DOI 10.1016/j.ijhydene.2024.12.472
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Web of Science ID 001398563000001
Development and demonstration of a two-color nitric oxide vibrational temperature diagnostic using spectrally-resolved ultraviolet laser absorption
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Barnes, S. C., Streicher, J. W., Krish, A., Hanson, R. K.
2025
332
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DOI 10.1016/j.jqsrt.2024.109275
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Web of Science ID 001370739600001
LT-HyChem- A physics-based chemical kinetic modeling approach for low-temperature oxidation of real fuels I: Rationale, methodology, and application to a simple fuel mixture
COMBUSTION AND FLAME
Choudhary, R., Biswas, P., Boddapati, V., Wang, H., Hanson, R. K.
2025
271
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DOI 10.1016/j.combustflame.2024.113852
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Web of Science ID 001396986200001
Second-generation in-situ TDLAS sensor for supersonic gas measurements in a shock tube
Schwartz, T., Strand, C. L., Hanson, R. K., Kostyk, C. B., AIAA
AMER INST AERONAUTICS & ASTRONAUTICS.
2025
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Web of Science ID 001659589700234
Simultaneous point measurements of temperature, pressure, and velocity using spectrally resolved laser-induced fluorescence of atomic potassium vapor in air
Vandervort, J. A., Kotsarinis, K., Strand, C. L., Hanson, R. K., AIAA
AMER INST AERONAUTICS & ASTRONAUTICS.
2025
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Web of Science ID 001659589700235
Shock Tube ARAS Measurements of N( ²D) and N(²P) in 5100K to 6400K Nitrogen-Argon Mixtures
Granowitz, Z. N., Drescher, D., Merrell, D. P., Streicher, J. W., Strand, C. L., Hanson, R. K., AIAA
AMER INST AERONAUTICS & ASTRONAUTICS.
2025
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Web of Science ID 001659589700233
Freestream Multi-species and Near-body Atomic Oxygen Measurements in the T5 Shock Tunnel by Tunable Diode Laser Absorption Spectroscopy
Schwartz, T., Drescher, D., Barnes, S. C., Ferretti, M., Strand, C. L., Hanson, R. K., Luo, Y., Yu, W. M., Gutierrez, J., Feasey, W., Austin, J. M., Hornung, H. G., Gross, T., Schwartzentruber, T. E., AIAA
AMER INST AERONAUTICS & ASTRONAUTICS.
2025
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Web of Science ID 001659589700232
Experimental and computational assessment of O₂ and NO individual vibrational states in reflected shock flows
Andrienko, D. A., Boyd, I. D., Streicher, J. W., Hanson, R. K., AIAA
AMER INST AERONAUTICS & ASTRONAUTICS.
2025
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Web of Science ID 001419060903063
Understanding the impact of cycloalkane additives on the combustion of HEFA jet fuel
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Panda, A., Klingberg, A., Hanson, R. K.
2025
41
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DOI 10.1016/j.proci.2025.105803
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Web of Science ID 001554744700001
A shock tube study of chaperon efficiencies for the NH3+M-NH2+H + M reaction during ammonia pyrolysis
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Simha, P., Rault, T. M., Clees, S., Streicher, J. W., Strand, C. L., Hanson, R. K.
2025
41
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DOI 10.1016/j.proci.2025.105797
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Web of Science ID 001558898600002
A Rapidly Tunable Laser System for Measurements of NH2 at 597 nm Behind Reflected Shock Waves.
Sensors (Basel, Switzerland)
Clees, S., Barnes, S. C., Rault, T. M., Strand, C. L., Hanson, R. K.
2024
24 (24)
Abstract
Distributed feedback lasers, which feature rapid wavelength tunability, are not presently available in the yellow and orange spectral regions, impeding spectroscopic studies of short-lived species that absorb light in this range. To meet this need, a rapidly tunable laser system was constructed, characterized, and demonstrated for measurements of the NH2 radical at 597.4 nm. The system consisted of three main parts: (1) a distributed feedback diode laser operating at 1194.8 nm, (2) a fiber-coupled optical amplifier, and (3) a periodically poled lithium niobate (PPLN) waveguide for second-harmonic generation. A phase-matching optical frequency bandwidth of 118 GHz and a second-harmonic generation efficiency of 109%/W were determined for the PPLN waveguide, and the intensity and wavelength stability of the system were measured. The rapid-tuning capabilities of the laser system were characterized to explore its potential for use in scanned-direct absorption and wavelength modulation spectroscopy experiments. The feasibility of scanned-direct absorption up to a scan rate of 900 kHz and wavelength modulation spectroscopy at modulation frequencies up to 800 kHz were demonstrated. Finally, the system was deployed in a series of shock tube experiments in which the concentration of NH2 radicals was measured during the decomposition of NH3 behind reflected shock waves.
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DOI 10.3390/s24247920
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PubMedID 39771657
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PubMedCentralID PMC11679085
Measurement of hydrogen and nitrogen via collision-induced infrared absorption
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Wei, C., Klingberg, A., Strand, C. L., Hanson, R. K.
2024
93
: 364-373
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DOI 10.1016/j.ijhydene.2024.10.318
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Web of Science ID 001350370000001
Collisional broadening and pressure shift coefficients for the potassium D1 and D2 transitions in oxygen and carbon dioxide at high temperatures
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Vandervort, J. A., Kotsarinis, K., Barnes, S. C., Strand, C. L., Hanson, R. K.
2024
328
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DOI 10.1016/j.jqsrt.2024.109152
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Web of Science ID 001299285700001
A Rapidly Tunable Laser System for Measurements of NH₂ at 597 nm Behind Reflected Shock Waves
SENSORS
Clees, S., Barnes, S. C., Rault, T. M., Strand, C. L., Hanson, R. K.
2024
24 (24)
View details for
DOI 10.3390/s24247920
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Web of Science ID 001386928700001
New insights into the effect of molecular structure on stable intermediate formation during the pyrolysis of normal and branched alkanes - II: Impact of carbon number and degree of branching
FUEL
Boddapati, V., Biswas, P., Panda, A., Klingberg, A. R., Hanson, R. K.
2024
373
View details for
DOI 10.1016/j.fuel.2024.132310
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Web of Science ID 001260318500001
New insights into the effect of molecular structure on stable intermediate formation during the pyrolysis of normal and branched alkanes - I: Multi-species time history measurements
FUEL
Boddapati, V., Biswas, P., Panda, A., Klingberg, A. R., Hanson, R. K.
2024
373
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DOI 10.1016/j.fuel.2024.132309
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Web of Science ID 001260746500001
Effect of elevated temperatures (550-860 K) on the laminar flame speeds of methane/hydrogen blends
FUEL
Figueroa-Labastida, M., Zheng, L., Streicher, J. W., Hanson, R. K.
2024
372
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DOI 10.1016/j.fuel.2024.132219
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Web of Science ID 001254735300001
Shock-Layer Measurements in T5 Shock Tunnel Hypersonic Flows Around a Cylinder Model
AIAA JOURNAL
Finch, P. M., Girard, J. J., Schwartz, T., Strand, C. L., Hanson, R. K., Yu, W. M., Austin, J. M., Hornung, H. G., Gross, T., Schwartzentruber, T. E.
2024
View details for
DOI 10.2514/1.J063877
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Web of Science ID 001296258800001
Experimental temperature- and pressure-dependent absorbance cross sections and a pseudo-line-list model for methyl formate near 5.7 . 7 μm
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Su, W., Ding, Y., Strand, C. L., Hanson, R. K.
2024
327
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DOI 10.1016/j.jqsrt.2024.109128
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Web of Science ID 001293622800001
Experimental measurements of n-heptane flame speeds behind reflected shock waves with variable extents of pre-flame auto-ignition chemistry
COMBUSTION AND FLAME
Zheng, L., Figueroa-Labastida, M., Streicher, J. W., Ferris, A. M., Hanson, R. K.
2024
266
View details for
DOI 10.1016/j.combustflame.2024.113539
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Web of Science ID 001325858900001
A laser diagnostic for lineshape-based gas temperature and pressure measurements targeting a single atomic potassium absorption transition
APPLIED PHYSICS B-LASERS AND OPTICS
Vandervort, J. A., Schwartz, T., Barnes, S. C., Strand, C. L., Hanson, R. K.
2024
130 (7)
View details for
DOI 10.1007/s00340-024-08252-7
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Web of Science ID 001242906600001
Ammonia/hydrogen laminar flame speed measurements at elevated temperatures
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Figueroa-Labastida, M., Zheng, L., Streicher, J. W., Hanson, R. K.
2024
63
: 1137-1146
View details for
DOI 10.1016/j.ijhydene.2024.03.255
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Web of Science ID 001285933700001
Experimental and numerical investigation of shock wave-based methane pyrolysis for clean H₂ production
SHOCK WAVES
Ferris, A. M., Biswas, P., Choudhary, R., Hanson, R. K.
2024
View details for
DOI 10.1007/s00193-024-01159-4
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Web of Science ID 001175260300001
High-temperature laminar flame speed measurements of ammonia/ methane blends behind reflected shock waves
COMBUSTION AND FLAME
Figueroa-Labastida, M., Zheng, L., Streicher, J. W., Hanson, R. K.
2024
261
View details for
DOI 10.1016/j.combustflame.2024.113314
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Web of Science ID 001166346500001
Measurements of methane laminar flame speeds at temperatures up to 1320 K
COMBUSTION AND FLAME
Figueroa-Labastida, M., Zheng, L., Streicher, J. W., Hanson, R. K.
2024
261
View details for
DOI 10.1016/j.combustflame.2024.113312
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Web of Science ID 001325824900001
Shock-tube laminar flame speed measurements of ammonia/airgon mixtures at temperatures up to 771K
COMBUSTION AND FLAME
Figueroa-Labastida, M., Zheng, L., Ferris, A. M., Obrecht, N., Callu, C., Hanson, R. K.
2024
260
View details for
DOI 10.1016/j.combustflame.2023.113256
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Web of Science ID 001136587800001
Development of a vapor-based method for seeding alkali metals in shock tube facilities
SHOCK WAVES
Vandervort, J. A., Barnes, S. C., Strand, C. L., Hanson, R. K.
2024
34 (1)
: 61-67
View details for
DOI 10.1007/s00193-024-01165-6
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Web of Science ID 001207728800004
Predicting the physical and chemical properties of sustainable aviation fuels using elastic-net-regularized linear models based on extended-wavelength FTIR spectra
FUEL
Boddapati, V., Ferris, A. M., Hanson, R. K.
2024
356
View details for
DOI 10.1016/j.fuel.2023.129557
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Web of Science ID 001063638700001
Understanding the impact of molecular structure on the formation of stable intermediates during the pyrolysis of monoalkylated cyclohexanes in a shock tube
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Boddapati, V., Biswas, P., Panda, A., Klingberg, A. R., Hanson, R. K.
2024
40 (1-4)
View details for
DOI 10.1016/j.proci.2024.105202
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Web of Science ID 001253272200001
Evaluation of thermal relaxation and extinction of nitric oxide via a master equation model
Andrienko, D. A., Boyd, I. D., Streicher, J. W., Hanson, R. K., AIAA
AMER INST AERONAUTICS & ASTRONAUTICS.
2024
View details for
Web of Science ID 001328602603028
Vibrational-State-Resolved Oxygen and Nitric Oxide Time-History Measurements in Shock-Heated, High-Temperature Air
Streicher, J. W., Barnes, S. C., Krish, A., Hanson, R. K., AIAA
AMER INST AERONAUTICS & ASTRONAUTICS.
2024
View details for
Web of Science ID 001328602603033
High-Frequency Static Pressure Measurements in the T5 Reflected Shock Tunnel
Yu, W. M., Luo, Y., Austin, J. M., Hornung, H. G., Finch, P. M., Schwartz, T., Strand, C. L., Hanson, R. K., AIAA
AMER INST AERONAUTICS & ASTRONAUTICS.
2024
View details for
Web of Science ID 001375995207024
Simulations of Non-Equilibrium Air Chemistry Compared To Hypersonic Wind Tunnel Experiments
Gross, T. J., Torres, E., Schwartzentruber, T. E., Finch, P. M., Girard, J. J., Schwartz, T., Granowitz, Z. N., Strand, C. L., Hanson, R. K., Yu, W. M., Austin, J. M., Hornung, H. G., AIAA
AMER INST AERONAUTICS & ASTRONAUTICS.
2024
View details for
Web of Science ID 001375987902032
Near-Infrared Measurements of Cyano Radical Number Density and Temperature using Rapidly Scanned Tunable Diode Laser Spectroscopy
Chang, E., Merrell, D. P., Streicher, J. W., Hanson, R. K., AIAA
AMER INST AERONAUTICS & ASTRONAUTICS.
2024
View details for
Web of Science ID 001375987902033
Demonstration of UV Rotational, Vibrational Temperature and Speciation Diagnostics for the Cyano-Radical in Methane-Nitrogen Mixtures
Merrell, D. P., Chang, E., Krish, A., Finch, P. M., Streicher, J. W., Hanson, R. K., AIAA
AMER INST AERONAUTICS & ASTRONAUTICS.
2024
View details for
DOI 10.2514/6.2024-1484
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Web of Science ID 001375965400034
Fiber-coupled optical probe for laser absorption diagnostics in shock tube experiments with high concentrations of non-monatomic species
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Wei, C., Knubben, J. C., Strand, C. L., Hanson, R. K.
2024
40 (1-4)
View details for
DOI 10.1016/j.proci.2024.105483
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Web of Science ID 001273551200001
Measurements and a new correlation of methanol laminar flame speeds at temperatures up to 916 K and elevated pressures behind reflected shock waves
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Zheng, L., Figueroa-Labastida, M., Streicher, J., Hanson, R. K.
2024
40 (1-4)
View details for
DOI 10.1016/j.proci.2024.105192
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Web of Science ID 001260451000001
Simultaneous OH and OH* measurements during NH₃ oxidation in a shock tube
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Clees, S., Rault, T. M., Zaczek, L. T., Hanson, R. K.
2024
40 (1-4)
View details for
DOI 10.1016/j.proci.2024.105286
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Web of Science ID 001258875400001
Towards characterizing the effect of sustainable gasoline additives on the low-T reactivity of n-heptane using CO speciation in a shock tube
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Biswas, P., Boddapati, V., Hanson, R. K.
2024
40 (1-4)
View details for
DOI 10.1016/j.proci.2024.105484
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Web of Science ID 001270258200001
Multi-speciation and ignition delay time measurements of ammonia oxidation behind reflected shock waves
COMBUSTION AND FLAME
Rault, T. M., Clees, S., Figueroa-Labastida, M., Barnes, S. C., Ferris, A. M., Obrecht, N., Callu, C., Hanson, R. K.
2024
260
View details for
DOI 10.1016/j.combustflame.2023.113260
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Web of Science ID 001147344300001
Spectroscopic modeling and measurements of the CN Violet and Red systems for the development of nonequilibrium temperature and speciation diagnostics
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Krish, A., Finch, P. M., Merrell, D. P., Streicher, J. W., Hanson, R. K.
2023
311
View details for
DOI 10.1016/j.jqsrt.2023.108772
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Web of Science ID 001082226500001
Laser Absorption Sensor Targeting Potassium for Hypersonic Velocity, Temperature, and Enthalpy Measurements
AIAA JOURNAL
Schwartz, T., Finch, P. M., Strand, C. L., Hanson, R. K., Luo, Y., Yu, W. M., Austin, J. M., Hornung, H. G.
2023
View details for
DOI 10.2514/1.J062620
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Web of Science ID 001003665400001
On the use of extended-wavelength FTIR spectra for the prediction of combustion properties of jet fuels and their constituent species
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Boddapati, V., Ferris, A. M., Hanson, R. K.
2023
39 (1)
: 1347-1355
View details for
DOI 10.1016/j.proci.2022.08.041
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Web of Science ID 001021526000001
Measurements of propane-O 2-Ar laminar flame speeds at temperatures exceeding 1000 K in a shock tube
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Susa, A. J., Zheng, L., Hanson, R. K.
2023
39 (2)
: 1793-1802
View details for
DOI 10.1016/j.proci.2022.07.191
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Web of Science ID 001017295900001
Simultaneous side-wall-schlieren and -emission imaging of autoignition phenomena in conventional and constrained-reaction-volume shock-tube experiments
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Susa, A. J., Hanson, R. K.
2023
39 (1)
: 1377-1386
View details for
DOI 10.1016/j.proci.2022.08.063
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Web of Science ID 001016839400001
Shock tube/laser absorption measurement of the rate constant of the reaction: H 2 O 2+CO 2 2OH+CO 2
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Shao, J., Choudhary, R., Davidson, D. F., Hanson, R. K.
2023
39 (1)
: 735-743
View details for
DOI 10.1016/j.proci.2022.08.021
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Web of Science ID 001017333600001
Two-dimensional simulation of cool and double flame formation induced by the laser ignition under shock-tube conditions
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Zhang, T., Susa, A. J., Hanson, R. K., Ju, Y.
2023
39 (2)
: 2017-2025
View details for
DOI 10.1016/j.proci.2022.08.068
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Web of Science ID 001019624300001
Laser absorption study of the N-2 + O -> NO plus N and NO plus O -> O-2 + N Zeldovich reactions in shock-heated N2O mixtures
PHYSICS OF FLUIDS
Streicher, J. W., Krish, A., Hanson, R. K.
2023
35 (4)
View details for
DOI 10.1063/5.0147764
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Web of Science ID 001003916300002
Atmospheric-pressure shock-tube measurements of high-temperature propane laminar flame speed across multiple equivalence ratios
COMBUSTION AND FLAME
Zheng, L., Nygaard, Z., Figueroa-Labastida, M., Susa, A. J., Ferris, A. M., Hanson, R. K.
2023
251
View details for
DOI 10.1016/j.combustflame.2023.112726
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Web of Science ID 000962386900001
Low-temperature oxidation of n-octane and n-decane in shock tubes: Differences in time histories of key intermediates
COMBUSTION AND FLAME
Choudhary, R., Clees, S., Boddapati, V., Shao, J., Davidson, D. F., Hanson, R. K.
2023
251
View details for
DOI 10.1016/j.combustflame.2023.112670
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Web of Science ID 000955844400001
NOx formation from ammonia, and its effects on oxy-combustion of hydrocarbon fuels under supercritical-CO2 conditions
APPLICATIONS IN ENERGY AND COMBUSTION SCIENCE
Gokulakrishnan, P., Shao, J., Klassen, M. S., Davidson, D. F., Hanson, R. K.
2023
13
View details for
DOI 10.1016/j.jaecs.2022.100110
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Web of Science ID 001044627300001
Multiwavelength Speciation in Pyrolysis of n-Pentane and Experimental Determination of the Rate Coefficient of nC5H12 = nC3H7 + C2H5 in a Shock Tube.
The journal of physical chemistry. A
Biswas, P., Choudhary, R., Hanson, R. K.
2023
Abstract
We report the application of a multiwavelength speciation strategy to the study of n-pentane (nC5H12) pyrolysis behind reflected shock waves in a shock tube. Experiments were conducted with 2% nC5H12/0.8%CO2/Ar (by mole) between 1150 and 1520 K in the pressure range of 1-2 atm. Utilization of laser absorption spectroscopy at eight wavelengths allowed time-resolved measurements of n-pentane, ethylene, methane, heavy alkenes, and temperature. The measured time histories were compared against the predictions of four recently developed chemical kinetic models for heavy hydrocarbons. It was found that none of the models reconciled the measured species time histories simultaneously. Sensitivity analysis was conducted to identify key reactions influencing the evolution of ethylene and other major pyrolysis products. The analysis revealed that the unimolecular decomposition of n-pentane into n-propyl and ethyl radicals has a dominating influence over the evolution of ethylene in the temperature range of 1150-1450 K. The rate coefficient of this reaction was then adjusted to match the measured ethylene time histories for each experiment. The rate coefficients thus determined, were fit against temperature using an Arrhenius expression given by k1(T) = 3.5 × 1014 exp(-67.2 kcal/RT) s-1. The average overall 2σ uncertainty of the measured rate coefficient was found to be ±35%, resulting primarily from uncertainties in the rate coefficients of secondary reactions. The measured rate coefficient, when used with the models, leads to a significant improvement in the prediction of species time histories. Further improvements in the model are possible if the rate coefficients of relevant reactions pertaining to small hydrocarbon chemistry are determined with an improved accuracy, and less uncertainty. To the best knowledge of the authors, this is the first experimental determination of the rate coefficient of C5H12 → nC3H7 + C2H5.
View details for
DOI 10.1021/acs.jpca.2c07538
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PubMedID 36852653
Shock-Tube Measurements of Atomic Nitrogen Collisional Excitation in 8000-12000 K Partially Ionized Nitrogen-Argon Mixtures.
The journal of physical chemistry. A
Finch, P. M., Granowitz, Z. N., Streicher, J. W., Krish, A., Strand, C. L., Hanson, R. K.
2023
Abstract
We report on shock-tube experiments measuring the collisional excitation of atomic nitrogen using tunable diode laser absorption spectroscopy (TDLAS). Conditions behind the reflected shocks ranged from 8000 to 12000 K and 0.1 to 1.1 atm in mixtures of 1 or 2% molecular nitrogen (N2) in argon (Ar). Absorption from the transition between atomic nitrogen quantum states 4P to 4D at 868 nm was used to monitor the formation of electronically excited nitrogen. Population measurements of the 4P state were made at a rate of 50 kHz. In connection with these measurements, a multitemperature kinetic mechanism is proposed for nitrogen excitation. Measurements suggest a multistage process. In early test times, a period of induction due to N2 dissociation is followed by a rise via heavy particle excitation. The dominant channel causing this excitation is believed to be N + N N(4P) + N with a measured forward rate constant of 3.65 * 10-18 exp(-119892/T) [m3/s]. As test time evolves, the excitation of 4P, referred to as N*, is subsequently interrupted and then resumes, as the kinetic environment becomes increasingly electron-dominated. The most impactful reactions of the mechanism are optimized to reduce the residual between simulations and the measurements. The measured N* populations indicate strong, though indirect, sensitivity to adjacent processes, including the excitation of metastable nitrogen, and ionization channels.
View details for
DOI 10.1021/acs.jpca.2c07839
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PubMedID 36745871
Measurements of T5 Shock Tunnel Freestream Temperature, Velocity, and Composition
AIAA JOURNAL
Finch, P. M., Girard, J. J., Schwartz, T., Strand, C. L., Hanson, R. K., Yu, W. M., Austin, J. M., Hornung, H. G.
2023
View details for
DOI 10.2514/1.J062383
View details for
Web of Science ID 000924854700001
Laminar flame speed measurements of ethanol, iso-octane, and their binary blends at temperatures up to 1020 K behind reflected shock waves
FUEL
Zheng, L., Figueroa-Labastida, M., Nygaard, Z., Ferris, A. M., Hanson, R. K.
2023
356
View details for
DOI 10.1016/j.fuel.2023.129495
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Web of Science ID 001062259200001
Using shock tube species time-histories in Bayesian parameter estimation: Effective independent-data number and target selection
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Chen, H., Ji, W., Cassady, S. J., Ferris, A. M., Hanson, R. K., Deng, S.
2023
39 (4)
: 5299-5308
View details for
DOI 10.1016/j.proci.2022.08.118
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Web of Science ID 001018617600001
Shock tube and multi-species laser absorption measurements of rate constants for methanol pyrolysis
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Wang, S., Ding, Y., Miao, J., Hanson, R. K.
2023
39 (1)
: 755-763
View details for
DOI 10.1016/j.proci.2022.08.062
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Web of Science ID 001019037800001
A laser-absorption sensor for in situ detection of biofuel blend vapor in engine intakes
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Clees, S., Cha, D. H., Biswas, P., Boddapati, V., Cassady, S. J., Strand, C. L., Hanson, R. K., French, B., Gilmour, A., Hawk, K. C., Stitt, J. M., Ferlet, X.
2023
39 (1)
: 1307-1316
View details for
DOI 10.1016/j.proci.2022.07.110
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Web of Science ID 001019044900001
Application of Reflected Shock Wave Configuration to Validate Nonequilibrium Models of Reacting Air
JOURNAL OF THERMOPHYSICS AND HEAT TRANSFER
Gimelshein, S. F., Streicher, J. W., Krish, A., Hanson, R. K., Wysong, I. J.
2022
View details for
DOI 10.2514/1.T6630
View details for
Web of Science ID 000891162900001
Logistic-Regression-Based Meta-Analysis of Factors Affecting Flame Stability in a Shock Tube
COMBUSTION SCIENCE AND TECHNOLOGY
Susa, A. J., Ferris, A. M., Zheng, L., Hanson, R. K.
2022
View details for
DOI 10.1080/00102202.2022.2142046
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Web of Science ID 000882871400001
High-temperature vibrational relaxation and decomposition of shock-heated nitric oxide. I. Argon dilution from 2200 to 8700 K
PHYSICS OF FLUIDS
Streicher, J. W., Krish, A., Hanson, R. K.
2022
34 (11)
View details for
DOI 10.1063/5.0109109
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Web of Science ID 000882457400018
Line mixing study of carbon monoxide near 4.7 mu m broadened by nitrogen, helium, and hydrogen
JOURNAL OF MOLECULAR SPECTROSCOPY
Su, W., Ding, Y., Strand, C. L., Hanson, R. K.
2022
390
View details for
DOI 10.1016/j.jms.2022.111699
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Web of Science ID 000904449500001
A mid-IR laser absorption diagnostic for measuring formaldehyde at high pressures and its demonstration in shock tubes
COMBUSTION AND FLAME
Biswas, P., Choudhary, R., Panda, A., Davidson, D. F., Hanson, R. K.
2022
245
View details for
DOI 10.1016/j.combustflame.2022.112366
View details for
Web of Science ID 000862966000011
High-temperature vibrational relaxation and decomposition of shock-heated nitric oxide: II. Nitrogen dilution from 1900 to 8200 K
PHYSICS OF FLUIDS
Streicher, J. W., Krish, A., Hanson, R. K.
2022
34 (11)
View details for
DOI 10.1063/5.0122787
View details for
Web of Science ID 000882457400010
Shock Tube/Laser Absorption Measurements of Cyclopentadiene Pyrolysis.
The journal of physical chemistry. A
Johnson, S. E., Davidson, D. F., Hanson, R. K.
2022
Abstract
High-temperature cyclopentadiene pyrolysis was examined behind reflected shock waves in a heated shock tube using several laser absorption diagnostic schemes. A two-color, online-offline sensor near 3335 cm-1 was used to measure time histories of acetylene, while a three-color scheme of diagnostics at 10.532, 10.675, and 11.345 mum yielded measurements of cyclopentadiene and ethylene. Species time histories of cyclopentadiene decomposition and acetylene formation as well as ethylene yields are reported from 1319 to 1678 K at 1.2-1.5 atm. In addition, the overall decomposition rate of cyclopentadiene is reported, and comparisons are made to a number of kinetic models.
View details for
DOI 10.1021/acs.jpca.2c04381
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PubMedID 35853207
Collisional broadening and pressure shift of the potassium resonance doublets by nitrogen, helium, and hydrogen at high temperatures
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Ding, Y., Vandervort, J. A., Freedman, R. S., Strand, C. L., Marley, M. S., Hanson, R. K.
2022
283
View details for
DOI 10.1016/j.jqsrt.2022.108149
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Web of Science ID 000792886800015
Methodology of designing compact schlieren systems using off-axis parabolic mirrors
APPLIED OPTICS
Zheng, L., Susa, A. J., Hanson, R. K.
2022
61 (16)
: 4857-4864
View details for
DOI 10.1364/AO.457151
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Web of Science ID 000808000800030
Spectrally-resolved ultraviolet absorption measurements of shock-heated NO from 2000 K to 6000 K for the development of a two-color rotational temperature diagnostic
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Krish, A., Streicher, J. W., Hanson, R. K.
2022
280
View details for
DOI 10.1016/j.jqsrt.2022.108073
View details for
Web of Science ID 000748572500001
Shock tube/laser absorption measurements of the isomerization rates of allene and propyne
COMBUSTION AND FLAME
Johnson, S. E., Ding, Y., Davidson, D. F., Hanson, R. K.
2022
238
View details for
DOI 10.1016/j.combustflame.2021.111962
View details for
Web of Science ID 000745063300002
Distortion of expanding n-heptane flames at high unburned-gas temperatures behind reflected shocks
COMBUSTION AND FLAME
Susa, A. J., Hanson, R. K.
2022
237
View details for
DOI 10.1016/j.combustflame.2021.111842
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Web of Science ID 000719303400003
Investigating Arcjet Mixing and Enthalpy Loss Using Atomic Oxygen Laser Absorption Spectroscopy
AIAA JOURNAL
Salazar, D., Strand, C. L., Hanson, R. K., MacDonald, M. E.
2022
60 (2)
: 976-984
View details for
DOI 10.2514/1.J060274
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Web of Science ID 000802220400034
Line mixing study on the fundamental rovibrational band of nitric oxide near 5.3 mu m
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Su, W., Boulet, C., Almodovar, C. A., Ding, Y., Strand, C. L., Hanson, R. K.
2022
278
View details for
DOI 10.1016/j.jqsrt.2021.107997
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Web of Science ID 000748572100014
Flame image velocimetry: seedless characterization of post-reflected-shock velocities in a shock-tube
EXPERIMENTS IN FLUIDS
Susa, A. J., Hanson, R. K.
2022
63 (1)
View details for
DOI 10.1007/s00348-022-03388-8
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Web of Science ID 000749223700001
Measurements of Reflected Shock Tunnel Freestream Nitric Oxide Temperatures and Partial Pressure
AIAA JOURNAL
Girard, J. J., Finch, P. M., Strand, C. L., Hanson, R. K., Yu, W. M., Austin, J. M., Hornung, H. G.
2021
59 (12)
: 5266-5275
View details for
DOI 10.2514/1.J060596
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Web of Science ID 000800025200032
Thermometry and speciation for high-temperature and -pressure methane pyrolysis using shock tubes and dual-comb spectroscopy
MEASUREMENT SCIENCE AND TECHNOLOGY
Pinkowski, N. H., Biswas, P., Shao, J., Strand, C. L., Hanson, R. K.
2021
32 (12)
View details for
DOI 10.1088/1361-6501/ac22ef
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Web of Science ID 000702061800001
Line mixing in the nitric oxide R-branch near 5.2 mu m at high pressures and temperatures: Measurements and empirical modeling using energy gap fitting
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Almodovar, C. A., Su, W., Choudhary, R., Shao, J., Strand, C. L., Hanson, R. K.
2021
276
View details for
DOI 10.1016/j.jqsrt.2021.107935
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Web of Science ID 000709765300010
Shock tube measurements of high-temperature argon broadening and shift parameters for the potassium D1 and D2 resonance transitions
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Ding, Y., Vandervort, J. A., Strand, C. L., Hanson, R. K.
2021
275
View details for
DOI 10.1016/j.jqsrt.2021.107895
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Web of Science ID 000704000000003
Shock tube study of ethanol pyrolysis I: Multi-species time-history measurements
COMBUSTION AND FLAME
Choudhary, R., Boddapati, V., Clees, S., Girard, J. J., Peng, Y., Shao, J., Davidson, D. F., Hanson, R. K.
2021
233
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DOI 10.1016/j.combustflame.2021.111553
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Web of Science ID 000718900500003
Shock tube study of ethanol pyrolysis II: Rate constant measurements and modeling
COMBUSTION AND FLAME
Choudhary, R., Boddapati, V., Clees, S., Girard, J. J., Peng, Y., Shao, J., Davidson, D. F., Hanson, R. K.
2021
233
View details for
DOI 10.1016/j.combustflame.2021.111554
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Web of Science ID 000718900500002
Spectrally-resolved absorption cross-section measurements of shock-heated O-2 for the development of a vibrational temperature diagnostic
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Krish, A., Streicher, J. W., Hanson, R. K.
2021
270
View details for
DOI 10.1016/j.jqsrt.2021.107704
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Web of Science ID 000670398200011
Experimental and modeling of autoignition of gaseous hydrocarbon fuels in the presence of H2 and C2H4
FUEL
Gokulakrishnan, P., Fuller, C., Klassen, M., Davidson, D., Hanson, R.
2021
296
View details for
DOI 10.1016/j.fuel.2021.120713
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Web of Science ID 000640935700003
Collisional excitation kinetics for O(3s S-5(o)) and O(3p P-5(3)) states using laser absorption spectroscopy in shock-heated weakly ionized O-2-Ar mixture
PHYSICAL REVIEW E
Li, Y., Wang, Y., Davidson, D. F., Hanson, R. K.
2021
103 (6)
View details for
DOI 10.1103/PhysRevE.103.063211
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Web of Science ID 000664534100019
Collisional excitation kinetics for O(3s^{5}S^{o}) and O(3p^{5}P_{3}) states using laser absorption spectroscopy in shock-heated weakly ionized O_{2}-Ar mixture.
Physical review. E
Li, Y., Wang, Y., Davidson, D. F., Hanson, R. K.
2021
103 (6-1)
: 063211
Abstract
Collisional excitation kinetics for atomic oxygen is studied behind reflected shock waves in 1%O_{2}/Ar mixtures over 10 000-11 000K using laser absorption spectroscopy of the O(3s^{5}S^{o}) to O(3p^{5}P_{3}) transition at 777 nm and the O(3p^{5}P_{3}) to O(3d ^{5}D_{2,3,4}^{o}) transitions at 926 nm. Four time histories are inferred simultaneously from the absorbance of the two transitions: the population density of level 4 of atomic oxygen, i.e., the O(3s ^{5}S^{o}) state, n_{4}; the population density of level 6 of atomic oxygen, i.e., the O(3p^{5}P_{3}) state, n_{6}; the electron number density, n_{e}; and the heavy-particle translational temperature, T_{tr}. Atomic oxygen in the levels 4 and 6 are not in equilibrium with the ground-state atomic oxygen as the measurements of n_{4} and n_{6} are generally 3-20 times smaller than the corresponding values under Boltzmann equilibrium at T_{tr}. However, these two states are close to partial equilibrium with each other within the test time, indicating strong heavy-particle cross coupling between levels 4 and 6 of atomic oxygen. A simplified two-temperature collisional-radiative (CR) model is developed to study the thermal and chemical nonequilibrium of atomic oxygen following shock heating. The four measured time histories are used to optimize the 12 collisional rate constants in the CR model using a stochastic gradient descent (SGD) algorithm. The time-history results, diagnostic methods, and collisional-radiative model presented in the current study are potentially useful in studies of high-enthalpy air, plasma processing, or other applications involving weakly ionized oxygen.
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DOI 10.1103/PhysRevE.103.063211
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PubMedID 34271738
Coupled vibration-dissociation time-histories and rate measurements in shock-heated, nondilute O-2 and O-2-Ar mixtures from 6000 to 14000K
PHYSICS OF FLUIDS
Streicher, J. W., Krish, A., Hanson, R. K.
2021
33 (5)
View details for
DOI 10.1063/5.0048059
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Web of Science ID 000677502500006
Quantum-cascade-laser-based dual-comb thermometry and speciation at high temperatures
MEASUREMENT SCIENCE AND TECHNOLOGY
Pinkowski, N. H., Cassady, S. J., Strand, C. L., Hanson, R. K.
2021
32 (3)
View details for
DOI 10.1088/1361-6501/abc029
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Web of Science ID 000621888000001
Development of a Stark shift measurement technique using excited-state oxygen atoms to determine electron number density in shock heated O-2/Ar above 10 000 K
PLASMA SOURCES SCIENCE & TECHNOLOGY
Li, Y., Wang, S., Strand, C. L., Hanson, R. K.
2021
30 (2)
View details for
DOI 10.1088/1361-6595/abdd12
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Web of Science ID 000625362300001
Thermal-pyrolysis induced over-driven flame and its potential role in the negative-temperature dependence of iso-octane flame speed at elevated temperatures
COMBUSTION AND FLAME
Yang, Q., Chen, Z., Susa, A. J., Hanson, R. K., Zhao, P.
2021
223
: 65–76
View details for
DOI 10.1016/j.combustflame.2020.09.027
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Web of Science ID 000599715300006
Studies of the dynamics of autoignition assisted outwardly propagating spherical cool and double flames under shock-tube conditions
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Zhang, T., Susa, A. J., Hanson, R. K., Ju, Y.
2021
38 (2)
: 2275-2283
View details for
DOI 10.1016/j.proci.2020.06.089
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Web of Science ID 000651833400015
An In Situ Laser-Absorption Sensor for Crank Angle-Resolved Temperature, Pressure, and Humidity in Intake-Runner Flows
SAE INTERNATIONAL JOURNAL OF ENGINES
Cassady, S. J., Cha, D. H., Pinkowski, N. H., Strand, C. L., Hanson, R. K., Ferlet, X., French, B., Mernone, B. J., Gilmour, A., Stitt, J. M.
2021
14 (4)
: 551-568
View details for
DOI 10.4271/03-14-04-0034
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Web of Science ID 000739430500007
Time-resolved, single-ended laser absorption thermometry and H2O, CO2, and CO speciation in a H-2/C2H4-fueled rotating detonation engine
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Cassady, S. J., Peng, W., Strand, C. L., Dausen, D. F., Codoni, J. R., Brophy, C. M., Hanson, R. K.
2021
38 (1)
: 1719-1727
View details for
DOI 10.1016/j.proci.2020.06.125
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Web of Science ID 000668887400018
High-speed imaging of n-heptane ignition in a high-pressure shock tube
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Shao, J., Choudhary, R., Susa, A. J., Davidson, D. F., Hanson, R. K.
2021
38 (1)
: 911-918
View details for
DOI 10.1016/j.proci.2020.06.158
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Web of Science ID 000668626900021
Measurement of time histories of stable intermediates during first stage ignition of n-heptane and its two isomers in a shock tube
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Choudhary, R., Girard, J. J., Clees, S., Johnson, S. E., Shao, J., Davidson, D. F., Hanson, R. K., Aradi, A. A.
2021
38 (1)
: 957-965
View details for
DOI 10.1016/j.proci.2020.06.296
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Web of Science ID 000668626900026
Temperature-dependent absorption cross section measurements for propene, 1-butene, cis-/trans-2-butene, isobutene and 1,3-butadiene in the spectral region 8.4-11.7 mu m
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Ding, Y., Su, W., Johnson, S. E., Strand, C. L., Hanson, R. K.
2020
255
View details for
DOI 10.1016/j.jqsrt.2020.107240
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Web of Science ID 000581971300017
Shock-induced ignition and pyrolysis of high-pressure methane and natural gas mixtures
COMBUSTION AND FLAME
Shao, J., Ferris, A. M., Choudhary, R., Cassady, S. J., Davidson, D. F., Hanson, R. K.
2020
221
: 364–70
View details for
DOI 10.1016/j.combustflame.2020.08.010
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Web of Science ID 000577974300035
A physics-based approach to modeling real-fuel combustion chemistry - VI. Predictive kinetic models of gasoline fuels
COMBUSTION AND FLAME
Xu, R., Saggese, C., Lawson, R., Movaghar, A., Parise, T., Shao, J., Choudhary, R., Park, J., Lu, T., Hanson, R. K., Davidson, D. F., Egolfopoulos, F. N., Aradi, A., Prakash, A., Mohan, V., Cracknell, R., Wang, H.
2020
220
: 475–87
View details for
DOI 10.1016/j.combustflame.2020.07.020
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Web of Science ID 000571428300009
Vibrational relaxation time measurements in shock-heated oxygen and air from 2000 K to 9000 K using ultraviolet laser absorption
PHYSICS OF FLUIDS
Streicher, J. W., Krish, A., Hanson, R. K.
2020
32 (8)
View details for
DOI 10.1063/5.0015890
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Web of Science ID 000559819800001
Shock-tube measurements of coupled vibration-dissociation time-histories and rate parameters in oxygen and argon mixtures from 5000 K to 10 000 K
PHYSICS OF FLUIDS
Streicher, J. W., Krish, A., Hanson, R. K., Hanquist, K. M., Chaudhry, R. S., Boyd, I. D.
2020
32 (7)
View details for
DOI 10.1063/5.0012426
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Web of Science ID 000547489500002
The pyrolysis of propane
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
Cassady, S. J., Choudhary, R., Boddapati, V., Pinkowski, N. H., Davidson, D. F., Hanson, R. K.
2020
View details for
DOI 10.1002/kin.21395
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Web of Science ID 000540365200001
Shock tube/laser absorption measurements of the pyrolysis of JP-10 fuel
COMBUSTION AND FLAME
Johnson, S. E., Davidson, D. F., Hanson, R. K.
2020
216
: 161–73
View details for
DOI 10.1016/j.combustflame.2019.11.026
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Web of Science ID 000533624800016
Spectroscopic inference of alkane, alkene, and aromatic formation during high-temperature JP8, JP5, and Jet-A pyrolysis
FUEL
Pinkowski, N. H., Cassady, S. J., Davidson, D. F., Hanson, R. K.
2020
269
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DOI 10.1016/j.fuel.2020.117420
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Web of Science ID 000520021800056
Quantitative measurements of broad-band mid-infrared absorption spectra of formaldehyde, acetaldehyde, and acetone at combustion-relevant temperatures near 5.7 mu m
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Ding, Y., Peng, W. Y., Strand, C. L., Hanson, R. K.
2020
248
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DOI 10.1016/j.jqsrt.2020.106981
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Web of Science ID 000539158500008
Ultraviolet absorption cross-section measurements of shock-heated O-2 from 2,000-8,400 K using a tunable laser
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Krish, A., Streicher, J. W., Hanson, R. K.
2020
247
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DOI 10.1016/j.jqsrt.2020.106959
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Web of Science ID 000536179300015
Two-color frequency-multiplexed IMS technique for gas thermometry at elevated pressures
APPLIED PHYSICS B-LASERS AND OPTICS
Wei, W., Peng, W., Wang, Y., Shao, J., Strand, C. L., Hanson, R. K.
2020
126 (3)
View details for
DOI 10.1007/s00340-020-7396-4
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Web of Science ID 000519937700002
Collisional broadening and shift of five OH A(2)Sigma(+)<- X-2 Pi (0-0) transitions in the Q(1)-branch, by H2O, O-2, CO2, N-2 and Ar, at 1220K
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Girard, J. J., Clees, S., Hanson, R. K.
2020
240
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DOI 10.1016/j.jqsrt.2019.106681
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Web of Science ID 000502881000004
Two-temperature Collisional-radiative Modeling of Partially Ionized O2-Ar Mixtures over 8000-10,000 K Behind Reflected Shock Waves.
The journal of physical chemistry. A
Li, Y. n., Wang, S. n., Strand, C. L., Hanson, R. K.
2020
Abstract
The collisional excitation kinetics of atomic oxygen was studied behind reflected shock waves using tunable diode laser absorption spectroscopy. A test gas mixture of 1% O2/Ar was shock-heated to temperatures between 8000 and 10,000 K and pressures between 0.15 and 1 atm. The time evolution of the atomic oxygen population in the 3 s 5S0 state was monitored by laser absorption at 777.2 nm. The measured O(3 s 5S0) population revealed multistage behavior that was not observed in previous measurements over a temperature range of 5300-7200 K. To interpret the multistage behavior, a three-level collisional-radiative model for atomic oxygen excitation kinetics was developed. The model utilized two independent temperatures, that is, heavy particle translational temperature Ttr and electron translational temperature Te, to describe the fundamental rate constants of atomic oxygen excitation because of collisions with heavy particles and electrons, respectively. The heavy particle excitation rate was inferred from the early stage of the measurement to be k(3P →5S0) = 3.4 × 10-27 (T/K)0.5(1.061 × 105 + 2 (T/K)) exp(-1.061 × 105 K/T) ± 50% m3 s-1. The electron impact excitation rate constant of oxygen, electron impact, and heavy particle impact ionization rate constants of Argon were modified in the model to match the experimental population time histories. The modified rate parameters are also reported for the temperature range explored in the current study.
View details for
DOI 10.1021/acs.jpca.0c00466
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PubMedID 32306734
A new strategy of characterizing hydrocarbon fuels using FTIR spectra and generalized linear model with grouped-Lasso regularization
Fuel
Wang, Y., Wei, W., Zhang, Y., Hanson, R. K.
2020
: 119419
View details for
DOI 10.1016/j.fuel.2020.119419
Determination of the JP10 + OH → Product Reaction Rate with Measured Fuel Concentrations in Shock Tube Experiments.
The journal of physical chemistry. A
Zaczek, L. T., Davidson, D. F., Hanson, R. K.
2020
Abstract
The overall reaction rate for JP10 + OH → products was measured directly via laser absorption of OH in shock tube experiments from 931 to 1308 K and 0.94 to 1.44 atm. The JP10 concentration of test gas mixtures was measured in the shock tube for several experiments using a 3.39 μm laser fuel diagnostic. The measured JP10 concentrations indicated fuel losses due to adsorption of 11-31% compared to values calculated manometrically from mixture preparation. OH was generated via rapid thermal decomposition of tert-butyl hydroperoxide behind reflected shock waves, and post-shock OH profiles were measured via laser absorption at 308.6 nm. The measured OH profiles were fit with a chemical kinetic model for JP10 chemistry to determine the overall JP10 + OH reaction rate. A recommendation is made for the JP10 + OH overall reaction rate over the temperature range explored in this study as k1 (931-1308 K) = 1.622 × 1014 exp(-1826/T [K]) ± 12%. To the authors' knowledge, these data are the first direct measurements of the overall reaction rate for JP10 + OH.
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DOI 10.1021/acs.jpca.0c00065
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PubMedID 32178517
The Thermal Decomposition of Ethane
Fuel
Cassady, S. J., Choudhary, R., Pinkowski, N. H., Shao, J., Davidson, D. F., Hanson, R. K.
2020
View details for
DOI 10.1016/j.fuel.2020.117409
Dual-comb Spectroscopy for High-temperature Reaction Kinetics
Measurement Science and Technology
Pinkowski, N. H., Ding, Y., Strand, C. L., Horvath, R., Geiser, M.
2020
View details for
DOI 10.1088/1361-6501/ab6ecc
Analysis of laser absorption gas sensors employing scanned-wavelength modulation spectroscopy with 1f-phase detection
APPLIED PHYSICS B-LASERS AND OPTICS
Peng, W., Strand, C. L., Hanson, R. K.
2020
126 (1)
View details for
DOI 10.1007/s00340-019-7369-7
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Web of Science ID 000503696100001
R-branch line intensities and temperature-dependent line broadening and shift coefficients of the nitric oxide fundamental rovibrational band
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Almodovar, C. A., Su, W., Strand, C. L., Hanson, R. K.
2019
239
View details for
DOI 10.1016/j.jqsrt.2019.106612
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Web of Science ID 000504780100002
Tunable laser-based detection of benzene using spectrally narrow absorption features
APPLIED PHYSICS B-LASERS AND OPTICS
Sur, R., Ding, Y., Jackson, R. B., Hanson, R. K.
2019
125 (11)
View details for
DOI 10.1007/s00340-019-7311-z
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Web of Science ID 000488964100001
Shock Tube Measurement of the CH3 + C2H6 CH4 + C2H5 Rate Constant.
The journal of physical chemistry. A
Shao, J., Wei, W., Choudhary, R., Davidson, D. F., Hanson, R. K.
2019
Abstract
The rate constant for the CH3 + C2H6 CH4 + C2H5 reaction was studied behind reflected shock waves at temperatures between 1369 and 1626 K and pressures from 8.6 to 47.4 atm in mixtures of methane, ethane, and argon. Ethylene time histories were measured using laser absorption of radiation from a carbon dioxide gas laser near 10.532 mum. The resulting rate constant data can be represented by the Arrhenius equation k (T) = 3.90 * 1013 exp(-16670 cal/mol/RT) cm3 mol-1 s-1. We believe this is the first study to extend experimental data for this rate constant to temperatures above 1400 K. The overall 2sigma uncertainty of the current data is +18%/-21% resulting primarily from uncertainties associated with the influence of secondary reactions and the fitting of rapidly changing species time histories at the higher temperatures.
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DOI 10.1021/acs.jpca.9b07691
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PubMedID 31557027
Experimental Observation of Negative Temperature Dependence in iso-Octane Burning Velocities
Susa, A. J., Ferris, A. M., Davidson, D. E., Hanson, R. K.
AMER INST AERONAUTICS ASTRONAUTICS.
2019
: 4476–81
View details for
DOI 10.2514/1.J058530
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Web of Science ID 000493056400033
Gravity-current-induced test gas stratification and its prevention in constrained reaction volume shock-tube experiments
SHOCK WAVES
Susa, A. J., Davidson, D. F., Hanson, R. K.
2019
29 (7)
: 969–84
View details for
DOI 10.1007/s00193-019-00894-3
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Web of Science ID 000482832300006
High-temperature laminar flame speed measurements in a shock tube
COMBUSTION AND FLAME
Ferris, A. M., Susa, A. J., Davidson, D. F., Hanson, R. K.
2019
205
: 241–52
View details for
DOI 10.1016/j.combustflame.2019.04.007
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Web of Science ID 000471742000023
High-pressure, high-temperature optical cell for mid-infrared spectroscopy
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Almodovar, C. A., Su, W., Strand, C. L., Sur, R., Hanson, R. K.
2019
231
: 69–78
View details for
DOI 10.1016/j.jqsrt.2019.04.014
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Web of Science ID 000469898100009
Multi-wavelength speciation of high-temperature 1-butene pyrolysis
FUEL
Pinkowski, N. H., Cassady, S. J., Davidson, D. F., Hanson, R. K.
2019
244
: 269–81
View details for
DOI 10.1016/j.fuel.2019.01.154
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Web of Science ID 000459434500027
A shock tube study of n-heptane, iso-octane, n-dodecane and iso-octane/n-dodecane blends oxidation at elevated pressures and intermediate temperatures
FUEL
Shao, J., Choudhary, R., Peng, Y., Davidson, D. F., Hanson, R. K.
2019
243
: 541–53
View details for
DOI 10.1016/j.fuel.2019.01.152
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Web of Science ID 000459431800059
Measurement of the reaction rate of H + O-2 + M -> HO2 + M, for M=Ar, N-2, CO2, at high temperature with a sensitive OH absorption diagnostic
COMBUSTION AND FLAME
Choudhary, R., Girard, J. J., Peng, Y., Shao, J., Davidson, D. F., Hanson, R. K.
2019
203
: 265–78
View details for
DOI 10.1016/j.combustflame.2019.02.017
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Web of Science ID 000464628700024
A new method of estimating derived cetane number for hydrocarbon fuels
FUEL
Wang, Y., Cao, Y., Wei, W., Davidson, D. F., Hanson, R. K.
2019
241
: 319–26
View details for
DOI 10.1016/j.fuel.2018.12.027
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Web of Science ID 000458760500032
A two-wavelength ethylene-absorption temperature diagnostic
MEASUREMENT SCIENCE AND TECHNOLOGY
Cassady, S. J., Susa, A. J., Ferris, A. M., Strand, C. L., Hanson, R. K.
2019
30 (3)
View details for
DOI 10.1088/1361-6501/ab02cf
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Web of Science ID 000459139700001
A multi-wavelength speciation framework for high-temperature hydrocarbon pyrolysis
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Pinkowski, N. H., Ding, Y., Johnson, S. E., Wang, Y., Parise, T. C., Davidson, D. F., Hanson, R. K.
2019
225
: 180–205
View details for
DOI 10.1016/j.jqsrt.2018.12.038
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Web of Science ID 000460495100018
High-temperature mid-infrared absorption spectra of methanol (CH3OH) and ethanol (C2H5OH) between 930 and 1170 cm(-1)
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Ding, Y., Strand, C. L., Hanson, R. K.
2019
224
: 396–402
View details for
DOI 10.1016/j.jqsrt.2018.11.034
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Web of Science ID 000456754800044
Quantitative 2-D OH thermometry using spectrally resolved planar laser-induced fluorescence
OPTICS LETTERS
Wang, S., Hanson, R. K.
2019
44 (3)
: 578–81
Abstract
A novel method is presented for quantitative two-dimensional temperature measurement in combustion gases. This method, namely spectrally resolved planar laser-induced fluorescence thermometry, utilizes a high-power, wavelength-tunable and narrow-linewidth CW laser to access the spectral lineshapes of a key combustion intermediate, the hydroxyl radical (OH), and enables high-fidelity and calibration-free quantification of non-uniform temperature fields in complex reacting flows. Specifically, the R1(11)/R1(7) line pair of the OH A2Σ+-X2Π(0,0) rovibronic band was probed with laser radiation near 306.5 nm, and their fluorescence ratios were used to infer temperature. Preliminary demonstrations of this thermometry method were performed in a series of burner-stabilized CH4-air flames.
View details for
DOI 10.1364/OL.44.000578
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Web of Science ID 000457292400029
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PubMedID 30702683
Shock Tube Measurement of the C2H4 + H double left right arrow C2H3 + H-2 Rate Constant
JOURNAL OF PHYSICAL CHEMISTRY A
Shao, J., Choudhary, R., Peng, Y., Davidson, D. F., Hanson, R. K.
2019
123 (1)
: 15–20
Abstract
The rate constant for the reaction C2H4+H⇒C2H3+H2 was studied behind reflected shock waves at temperatures between 1619 and 1948 K and pressures near 10 atm in a mixture of C2H4, CH4, H2, and argon. C2H4 time-histories were measured using laser absorption of a CO2 gas laser near 10.53 microns. Experimental mixtures were designed to optimize sensitivity to the title reaction with only weak sensitivity to secondary reactions. Two mechanisms, FFCM1 and ARAMCO v2, are used for data analysis. The well-selected operating conditions and Monte-Carlo Sampling data analysis procedure resulted in mechanism independent reaction rate constant measurements with 2σ uncertainty of +/-35 %. The current data disagree with a broadly used theoretical calculation (Knyazev et al. (1996)), but they are in good consensus with one of the review studies (Baulch et al. (2005)), k=3.9×1022T3.62exp(-5670/T) cm3molecule-1s-1. To the best of our knowledge, this work provides the first high temperature study of C2H4+H⇒C2H3+H2 reaction rate constant with well-defined uncertainty.
View details for
PubMedID 30537818
Shock tube study of the rate constants for H +O-2 + M -> HO2 +M (M = Ar, H2O, CO2, N-2) at elevated pressures
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Shao, J., Choudhary, R., Susa, A., Davidson, D. F., Hanson, R. K.
2019
37 (1)
: 145–52
View details for
DOI 10.1016/j.proci.2018.05.077
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Web of Science ID 000456612200007
On estimating physical and chemical properties of hydrocarbon fuels using mid-infrared FTIR spectra and regularized linear models
Fuel
Wang, Y., Ding, Y., Wei, W., Cao, Y., Davidson, D. F., Hanson, R. K.
2019
255
: 115715
View details for
DOI 10.1016/j.fuel.2019.115715
Sensitive and Interference-Immune Formaldehyde Diagnostic for High-Temperature Reacting Gases Using Two-Color Laser Absorption Near 5.6 Microns
Combustion and Flame
Ding, Y., Wang, S., Hanson, R. K.
2019
View details for
DOI 10.1016/j.combustflame.2019.11.042
High-Temperature Laminar Burning Velocity Experiments in a Shock Tube: LBV, Temperature and Species Measurements
European Workshop on Flame Speed Measurements
Ferris, A. M., Susa, A. J., Girard, J. J., Davidson, D. F., Hanson, R. K.
2019
Experimental Measurement of Laminar Burning Velocity of n-Heptane at Variable Extents of Reaction in a Shock Tube
Proc. of the 32nd International Symposium on Shock Waves (ISSW32)
Susa, A. J., Ferris, A. M., Davidson, D. F., Hanson, R. K.
2019
View details for
DOI 10.3850/978-981-11-2730-4_0149-cd
Measurement of the mid-infrared absorption spectra of ethylene (C2H4) and other molecules at high temperatures and pressures
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Strand, C. L., Ding, Y., Johnson, S. E., Hanson, R. K.
2019
222
: 122–29
View details for
DOI 10.1016/j.jqsrt.2018.10.030
View details for
Web of Science ID 000452576800012
Shock Tube/Laser Absorption Measurements of the Pyrolysis of JP-10 Fuel
AIAA SciTech Forum
Johnson, S. E., Davidson, D. F., Hanson, R. K.
2019
View details for
DOI 10.2514/6.2019-0575
Multi-wavelength speciation of high-temperature alternative and conventional jet fuel pyrolysis
AIAA SciTech Forum
Pinkowski, N. H., Davidson, D. F., Hanson, R. K.
2019
View details for
DOI 10.2514/6.2019-1769
Experimental Shock Tube Measurements of Laminar Burning Velocity of n-Heptane and iso-Octane in the Negative Temperature Coefficient Regime
AIAA SciTech Forum
Susa, A. J., Ferris, A. M., Davidson, D. F., Hanson, R. K.
2019
View details for
DOI 10.2514/6.2019-0460
Shock tube techniques for kinetic target data to improve reaction models
Mathematical Modelling of Gas-Phase Complex Reaction Systems: Pyrolysis and Combustion, Volume 45
Wang, S., Davidson, D. F., Hanson, R. K.
Elsevier.
2019
View details for
DOI https://doi.org/10.1016/B978-0-444-64087-1.00003-6
Dual-comb Spectroscopy in Shock tubes: Mid-infrared Microsecond-resolved Spectrometer
11th Int. Conf. on Chemical Kinetics
Hugi, A., Geiser, M., Horvath, R., Strand, C. L., Pinkowski, N. H., Ding, Y., Hanson, R. K.
2019
Spectroscopic Applications of Quantum Cascade Laser Frequency Combs
International Conference on Advanced Vibrational Spectroscopy
Horvath, R., Mangold, M., Strand, C. L., Pinkowski, N. H., Ding, Y., Hanson, R. K.
2019
n-Heptane Ignition: High-Speed Imaging in a High-Pressure Shock Tube
Proceedings of the 27th International Colloquium on the Dynamics of Explosions and Reactive Systems
Shao, J., Choudhary, R., Susa, A. J., Davidson, D. F., Hanson, R. K.
2019
Measurements of Laminar Burning Velocity in a Shock Tube
Proceedings of the 27th International Colloquium on the Dynamics of Explosions and Reactive Systems
Susa, A. J., Ferris, A. M., Davidson, D. F., Hanson, R. K.
2019
Multi-species time history measurements during ethanol pyrolysis behind reflected shock waves
11th U. S. National Combustion Meeting
Choudhary, R., Peng, Y., Shao, J., Davidson, D. F.
2019
Time-resolved Speciation of iso-Octane First-stage Ignition Products at Elevated Effective Pressures
11th U. S. National Combustion Meeting
Susa, A. J., Davidson, D. F., Hanson, R. K.
2019
Temperature, Species, and Laminar flame Speed Measurements in High-temperature, Premixed Ethane-Air Flames
11th U. S. National Combustion Meeting
Ferris, A. M., Girard, J. J., Susa, A. J., Davidson, D. F., Hanson, R. K.
2019
Information-driven Experiment Design for Shock Tube Kinetic Studies
11th U. S. National Combustion Meeting
Wang, S., Davidson, D. F., Hanson, R. K.
2019
Dual-comb Spectroscopy in Shock Tubes: Mid-Infrared Microsecond-resolved Spectrometer
Proc. of the 32nd International Symposium on Shock Waves (ISSW32)
Geiser, M., Horvath, R., Strand, C. L., Pinkowski, N. H., Ding, Y., Hanson, R. K.
2019
View details for
DOI 10.3850/978-981-11-2730-4_0303-cd
Dual-comb Measurements behind Reflected Shock Waves
Proc. of the 32nd International Symposium on Shock Waves (ISSW32)
Pinkowski, N. H., Strand, C. L., Ding, Y., Hanson, R. K., Horvath, R., Geiser, M.
2019
View details for
DOI 10.3850/978-981-11-2730-4_0475-cd
TDLAS Measurements of the Underexpanded Exhaust Plume from a Solid Propellant Gas Generator
AIAA SciTech Forum
Almodovar, C. A., Salazar, D. V., Strand, C. L., Hanson, R. K., Wright, R. G., Brophy, C. M.
2019
View details for
DOI 10.2514/6.2019-0028
Measurements of Oxygen Vibrational Relaxation and Dissociation using Ultraviolet Laser Absorption in Shock Tube Experiments
AIAA SciTech Forum
Streicher, J. W., Krish, A., Wang, S., Davidson, D. F., Hanson, R. K.
2019
View details for
DOI 10.2514/6.2019-0795
High-speed Imaging of Homogeneous and Inhomogeneous Ignition in a High-pressure Shock Tube
AIAA SciTech Forum
Shao, J., Choudhary, R., Susa, A. J., Peng, Y., Davidson, D. F., Hanson, R. K.
2019
View details for
DOI 10.2514/6.2019-1771
Spectrally-resolved Absorption and Laser-induced Fluorescence of High-temperature Gases
AIAA SciTech Forum
Wang, S., Strand, C. L., Hanson, R. K.
2019
View details for
DOI 10.2514/6.2019-1612
Direct Measurement of the JP-10+OH=Products Reaction Rate in Shock Tube Experiments
AIAA SciTech Forum
Zaczek, L. T., Hanson, R. K.
2019
View details for
DOI 10.2514/6.2019-2367
A Single-ended, Mid-IR Sensor for Time—resolved Temperature and Species Measurements in a Hydrogen/Ethylene-fueled Rotating Detonation Engine
AIAA SciTech Forum
Cassady, S. J., Peng, W. Y., Strand, C. L., Jeffries, J. B., Hanson, R. K., Dausen, D. F., Brophy, C. M.
2019
View details for
DOI 10.2514/6.2019-0027
Ignition Delay Time Measurements for Distillate and synthetic Jet Fuels
AIAA SciTech Forum
Wang, Y., Cao, Y., Davidson, D. F., Hanson, R. K.
2019
View details for
DOI 10.2514/6.2019-2248
Demonstration of non-absorbing interference rejection using wavelength modulation spectroscopy in high-pressure shock tubes
APPLIED PHYSICS B-LASERS AND OPTICS
Wei, W., Peng, W., Wang, Y., Choudhary, R., Wang, S., Shao, J., Hanson, R. K.
2019
125 (1)
View details for
DOI 10.1007/s00340-018-7118-3
View details for
Web of Science ID 000452951800001
Single-ended mid-infrared laser-absorption sensor for time-resolved measurements of water concentration and temperature within the annulus of a rotating detonation engine
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Peng, W., Cassady, S. J., Strand, C. L., Goldenstein, C. S., Spearrin, R., Brophy, C. M., Jeffries, J. B., Hanson, R. K.
2019
37 (2)
: 1435–43
View details for
DOI 10.1016/j.proci.2018.05.021
View details for
Web of Science ID 000456621500020
Ignition delay times of methane and hydrogen highly diluted in carbon dioxide at high pressures up to 300 atm
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Shao, J., Choudhary, R., Davidson, D. E., Hanson, R. K., Barak, S., Vasu, S.
2019
37 (4)
: 4555–62
View details for
DOI 10.1016/j.proci.2018.08.002
View details for
Web of Science ID 000457095600028
Ignition delay time measurements and modeling for gasoline at very high pressures
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Davidson, D. F., Shao, J. K., Choudhary, R., Mehl, M., Obrecht, N., Hanson, R. K.
2019
37 (4)
: 4885–92
View details for
DOI 10.1016/j.proci.2018.08.032
View details for
Web of Science ID 000457095600064
Cavity-enhanced absorption spectroscopy for shocktubes: Design and optimization
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Chao, X., Shen, G., Sun, K., Wang, Z., Meng, Q., Wang, S., Hanson, R. K.
2019
37 (2)
: 1345–53
View details for
DOI 10.1016/j.proci.2018.06.230
View details for
Web of Science ID 000456621500010
A streamlined approach to hybrid-chemistry modeling for a low cetane-number alternative jet fuel
Combustion and Flame
Pinkowski, N. H., Wang, Y., Cassady, S. J., Davidson, D. F., Hanson, R. K.
2019
208
: 15-26
View details for
DOI 10.1016/j.combustflame.2019.06.024
Single-Ended Sensor for Thermometry and Speciation in Shock Tubes Using Native Surfaces
IEEE Sensors Journal
Peng, W. Y., Wang, Y., Cassady, S. J., Strand, C. L., Hanson, R. K.
2019
View details for
DOI 10.1109/JSEN.2019.2903989
A comparative laser absorption and gas chromatography study of low-temperature n-heptane oxidation intermediates
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Ferris, A. M., Susa, A. J., Davidson, D. F., Hanson, R. K.
2019
37 (1)
: 249–57
View details for
DOI 10.1016/j.proci.2018.05.018
View details for
Web of Science ID 000456612200019
Shock tube measurements of OH concentration time-histories in benzene, toluene, ethylbenzene and xylene oxidation
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Wang, S., Davidson, D. F., Hanson, R. K.
2019
37 (1)
: 163–70
View details for
DOI 10.1016/j.proci.2018.06.116
View details for
Web of Science ID 000456612200009
Temperature-dependent line parameter study of acetylene transitions near 3 mu m
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Cassady, S. J., Peng, W., Hanson, R. K.
2018
221
: 172–82
View details for
DOI 10.1016/j.jqsrt.2018.09.031
View details for
Web of Science ID 000452576900020
Collisional-induced broadening and shift parameters of OH with Ar and N-2 near 308.6 nm, measured at T=1300-2000 K and P=20-100 atm
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Girard, J. J., Choudhary, R., Hanson, R. K.
2018
221
: 194–201
View details for
DOI 10.1016/j.jqsrt.2018.10.007
View details for
Web of Science ID 000452576900022
Shock tube study of normal heptane first-stage ignition near 3.5 atm
COMBUSTION AND FLAME
Campbell, M. F., Wang, S., Davidson, D. F., Hanson, R. K.
2018
198
: 376–92
View details for
DOI 10.1016/j.combustflame.2018.08.008
View details for
Web of Science ID 000452581400033
A physics based approach to modeling real-fuel combustion chemistry - IV. HyChem modeling of combustion kinetics of a bio-derived jet fuel and its blends with a conventional Jet A
COMBUSTION AND FLAME
Wang, K., Xu, R., Parise, T., Shao, J., Movaghar, A., Lee, D., Park, J., Gao, Y., Lu, T., Egolfopoulos, F. N., Davidson, D. F., Hanson, R. K., Bowman, C. T., Wang, H.
2018
198
: 477–89
View details for
DOI 10.1016/j.combustflame.2018.07.012
View details for
Web of Science ID 000452581400040
A Physics-based approach to modeling real-fuel combustion chemistry - III. Reaction kinetic model of JP10
COMBUSTION AND FLAME
Tao, Y., Xu, R., Wang, K., Shao, J., Johnson, S. E., Movaghar, A., Han, X., Park, J., Lu, T., Brezinsky, K., Egolfopoulos, F. N., Davidson, D. F., Hanson, R. K., Bowman, C. T., Wang, H.
2018
198
: 466–76
View details for
DOI 10.1016/j.combustflame.2018.08.022
View details for
Web of Science ID 000452581400039
A combined laser absorption and gas chromatography sampling diagnostic for speciation in a shock tube
COMBUSTION AND FLAME
Ferris, A. M., Davidson, D. E., Hanson, R. K.
2018
195
: 40–49
View details for
DOI 10.1016/j.combustflame.2018.04.032
View details for
Web of Science ID 000440118500005
High-speed imaging of inhomogeneous ignition in a shock tube
Tulgestke, A. M., Johnson, S. E., Davidson, D. F., Hanson, R. K.
SPRINGER.
2018
: 1089–95
View details for
DOI 10.1007/s00193-018-0824-2
View details for
Web of Science ID 000444734200014
A shock tube study of jet fuel pyrolysis and ignition at elevated pressures and temperatures
FUEL
Shao, J., Zhu, Y., Wang, S., Davidson, D. F., Hanson, R. K.
2018
226
: 338–44
View details for
DOI 10.1016/j.fuel.2018.04.028
View details for
Web of Science ID 000432923300038
A shock tube study of ignition delay times in diluted methane, ethylene, propene and their blends at elevated pressures
FUEL
Shao, J., Davidson, D. F., Hanson, R. K.
2018
225
: 370–80
View details for
DOI 10.1016/j.fuel.2018.03.146
View details for
Web of Science ID 000432922400038
Ultra-sensitive spectroscopy of OH radical in high-temperature transient reactions
OPTICS LETTERS
Wang, S., Hanson, R. K.
2018
43 (15)
: 3518–21
Abstract
The hydroxyl (OH) radical is arguably the most important transient radical in high-temperature gas-phase combustion reactions, yet it is very difficult to measure because of its high reactivity and, thus, short lifetime and low concentration. This work reports the development of a novel method for ultra-sensitive, quantitative, and microsecond-resolved detection of OH based on UV frequency-modulation spectroscopy (FMS). To the best of the authors' knowledge, this is the first FMS demonstration in the near-UV spectral region for detection of short-lived radical species. Shot-noise-limited detection was achieved at an optical power of 25 mW. A proof-of-concept experiment in a tabletop H2O/He microwave discharge cell has reached a 1σ minimum detectable absorbance (MDA) of less than 2×10-4 over 1 MHz measurement bandwidth. High-temperature OH measurement was demonstrated in a 15 cm diameter shock tube, where a typical MDA of 3.0×10-4 was achieved at 1330 K, 0.38 atm, and 1 MHz. These preliminary results have outperformed the previous best MDA by more than a factor of 3; further improvement by another order of magnitude is anticipated, following the strategies outlined at the end of this Letter. The current method paves the path to parts per billion (ppb) -level OH detection capability and offers prospects to significantly advance fundamental combustion research by enabling direct observation of OH formation and scavenging kinetics during key stages of fuel oxidation that were inaccessible with previous methods.
View details for
DOI 10.1364/OL.43.003518
View details for
Web of Science ID 000440405900016
View details for
PubMedID 30067624
A physics-based approach to modeling real-fuel combustion chemistry - II. Reaction kinetic models of jet and rocket fuels
COMBUSTION AND FLAME
Xu, R., Wang, K., Banerjee, S., Shao, J., Parise, T., Zhu, Y., Wang, S., Movaghar, A., Lee, D., Zhao, R., Han, X., Gao, Y., Lu, T., Brezinsky, K., Egolfopoulos, F. N., Davidson, D. F., Hanson, R. K., Bowman, C. T., Wang, H.
2018
193
: 520–37
View details for
DOI 10.1016/j.combustflame.2018.03.021
View details for
Web of Science ID 000436899700042
A physics-based approach to modeling real-fuel combustion chemistry - I. Evidence from experiments, and thermodynamic, chemical kinetic and statistical considerations
COMBUSTION AND FLAME
Wang, H., Xu, R., Wang, K., Bowman, C. T., Hanson, R. K., Davidson, D. F., Brezinsky, K., Egolfopoulos, F. N.
2018
193
: 502–19
View details for
DOI 10.1016/j.combustflame.2018.03.019
View details for
Web of Science ID 000436899700041
Development of a two-wavelength IR laser absorption diagnostic for propene and ethylene
MEASUREMENT SCIENCE AND TECHNOLOGY
Parise, T. C., Davidson, D. F., Hanson, R. K.
2018
29 (5)
View details for
DOI 10.1088/1361-6501/aab02b
View details for
Web of Science ID 000428312700002
High-sensitivity 308.6-nm laser absorption diagnostic optimized for OH measurement in shock tube combustion studies
APPLIED PHYSICS B-LASERS AND OPTICS
Wang, S., Hanson, R. K.
2018
124 (3)
View details for
DOI 10.1007/s00340-018-6902-4
View details for
Web of Science ID 000427524300001
Design and implementation of a laser-based absorption spectroscopy sensor for in situ monitoring of biomass gasification
MEASUREMENT SCIENCE AND TECHNOLOGY
Salazar, D., Goldenstein, C. S., Jeffries, J. B., Seiser, R., Cattolica, R. J., Hanson, R. K.
2017
28 (12)
View details for
DOI 10.1088.1361-6501/aa8cf6
View details for
Web of Science ID 000416029100001
A new diagnostic for hydrocarbon fuels using 3.41-mu m diode laser absorption
COMBUSTION AND FLAME
Wang, S., Parise, T., Johnson, S. E., Davidson, D. F., Hanson, R. K.
2017
186
: 129–39
View details for
DOI 10.1016/j.combustflame.2017.07.026
View details for
Web of Science ID 000413134100010
Two-color laser absorption near 5 mu m for temperature and nitric oxide sensing in high-temperature gases
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Almodovar, C. A., Spearrin, R., Hanson, R. K.
2017
203
: 572–81
View details for
DOI 10.1016/j.jqsrt.2017.03.003
View details for
Web of Science ID 000414107400050
Shock Tube and Laser Absorption Study of CH2O Oxidation via Simultaneous Measurements of OH and CO.
The journal of physical chemistry. A
Wang, S., Davidson, D. F., Hanson, R. K.
2017
121 (45)
: 8561-8568
Abstract
The oxidation of Ar-diluted stoichiometric CH2O-O2 mixtures was studied behind reflected shock waves over temperatures of 1332-1685 K, at pressures of about 1.5 atm and initial CH2O mole fractions of 500, 1500, and 5000 ppm. Quantitative and time-resolved concentration histories of OH and CO (at both v″ = 0 and v″ = 1) were measured by narrow-linewidth laser absorption at 306.7 and 4854 nm, respectively. A time delay was observed between the formation of v″ = 0 and v″ = 1 states of CO, suggesting that CO was kinetically generated primarily in the ground state and then collisionally relaxed toward vibrational equilibrium. The measured CO and OH time-histories were used to evaluate the performance of four detailed reaction mechanisms regarding the oxidation chemistry of CH2O. Further analyses of these time-history data have also led to improved determination for the rate constants of two key reactions, namely H + O2 = O + OH (R1) and OH + CO = CO2 + H (R2), as follows: k1 = 8.04 × 1013 exp(-7370 K/T) cm3 mol-1 s-1, k2 = 1.90 × 1012 exp(-2760 K/T) cm3 mol-1 s-1; both expressions are valid over 1428-1685 K and have 1σ uncertainties of approximately ±10%.
View details for
DOI 10.1021/acs.jpca.7b09362
View details for
PubMedID 29065683
Characterization of a Large-Scale Arcjet Facility Using Tunable Diode Laser Absorption Spectroscopy
Nations, M., Chang, L. S., Jeffries, J. B., Hanson, R. K., MacDonald, M. E., Nawaz, A., Taunk, J. S., Goekcen, T., Raiche, G.
AMER INST AERONAUTICS ASTRONAUTICS.
2017
: 3757–66
View details for
DOI 10.2514/1.J056011
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Web of Science ID 000413944800012
Chemical kinetic modeling and shock tube study of methyl propanoate decomposition
COMBUSTION AND FLAME
Ning, H., Wu, J., Ma, L., Ren, W., Davidson, D. F., Hanson, R. K.
2017
184
: 30–40
View details for
DOI 10.1016/j.combustflame.2017.06.001
View details for
Web of Science ID 000408518600004
Toward a better understanding of 2-butanone oxidation: Detailed species measurements and kinetic modeling
COMBUSTION AND FLAME
Hemken, C., Burke, U., Lam, K., Davidson, D. F., Hanson, R. K., Heufer, K., Kohse-Hoeinghaus, K.
2017
184
: 195–207
View details for
DOI 10.1016/j.combustflame.2017.06.007
View details for
Web of Science ID 000408518600016
Large meta-analysis of genome-wide association studies identifies five loci for lean body mass
NATURE COMMUNICATIONS
Zillikens, M., Demissie, S., Hsu, Y., Yerges-Armstrong, L. M., Chou, W., Stolk, L., Livshits, G., Broer, L., Johnson, T., Koller, D. L., Kutalik, Z., Luan, J., Malkin, I., Ried, J. S., Smith, A. V., Thorleifsson, G., Vandenput, L., Zhao, J., Zhang, W., Aghdassi, A., Akesson, K., Amin, N., Baier, L. J., Barroso, I., Bennett, D. A., Bertram, L., Biffar, R., Bochud, M., Boehnke, M., Borecki, I. B., Buchman, A. S., Byberg, L., Campbell, H., Obanda, N., Cauley, J. A., Cawthon, P. M., Cederberg, H., Chen, Z., Cho, N. H., Choi, H., Claussnitzer, M., Collins, F., Cummings, S. R., De Jager, P. L., Demuth, I., Dhonukshe-Rutten, R. A. M., Diatchenko, L., Eiriksdottir, G., Enneman, A. W., Erdos, M., Eriksson, J. G., Eriksson, J., Estrada, K., Evans, D. S., Feitosa, M. F., Fu, M., Garcia, M., Gieger, C., Girke, T., Glazer, N. L., Grallert, H., Grewal, J., Han, B., Hanson, R. L., Hayward, C., Hofman, A., Hoffman, E. P., Homuth, G., Hsueh, W., Hubal, M. J., Hubbard, A., Huffman, K. M., Husted, L. B., Illig, T., Ingelsson, E., Ittermann, T., Jansson, J., Jordan, J. M., Jula, A., Karlsson, M., Khaw, K., Kilpainen, T. O., Klopp, N., Kloth, J. S. L., Koistinen, H. A., Kraus, W. E., Kritchevsky, S., Kuulasmaa, T., Kuusisto, J., Laakso, M., Lahti, J., Lang, T., Langdahl, B. L., Launer, L. J., Lee, J., Lerch, M. M., Lewis, J. R., Lind, L., Lindgren, C., Liu, Y., Liu, T., Liu, Y., Ljunggren, O., Lorentzon, M., Luben, R. N., Maixner, W., McGuigan, F. E., Medina-Gomez, C., Meitinger, T., Melhus, H., Mellstrom, D., Melov, S., Michaelsson, K., Mitchell, B. D., Morris, A. P., Mosekilde, L., Newman, A., Nielson, C. M., O'Connell, J. R., Oostra, B. A., Orwoll, E. S., Palotie, A., Parker, S., Peacock, M., Perola, M., Peters, A., Polasek, O., Prince, R. L., Raikkonen, K., Ralston, S. H., Ripatti, S., Robbins, J. A., Rotter, J. I., Rudan, I., Salomaa, V., Satterfield, S., Schadt, E. E., Schipf, S., Scott, L., Sehmi, J., Shen, J., Shin, C., Sigurdsson, G., Smith, S., Soranzo, N., Stancakova, A., Steinhagen-Thiessen, E., Streeten, E. A., Styrkarsdottir, U., Swart, K. M. A., Tan, S., Tarnopolsky, M. A., Thompson, P., Thomson, C. A., Thorsteinsdottir, U., Tikkanen, E., Tranah, G. J., Tuomilehto, J., van Schoor, N. M., Verma, A., Vollenweider, P., Voelzke, H., Wactawski-Wende, J., Walker, M., Weedon, M. N., Welch, R., Wichman, H., Widen, E., Williams, F. M. K., Wilson, J. F., Wright, N. C., Xie, W., Yu, L., Zhou, Y., Chambers, J. C., Doring, A., van Duijn, C. M., Econs, M. J., Gudnason, V., Kooner, J. S., Psaty, B. M., Spector, T. D., Stefansson, K., Rivadeneira, F., Uitterlinden, A. G., Wareham, N. J., Ossowski, V., Waterworth, D., Loos, R. J. F., Karasik, D., Harris, T. B., Ohlsson, C., Kiel, D. P.
2017
: 80
Abstract
Lean body mass, consisting mostly of skeletal muscle, is important for healthy aging. We performed a genome-wide association study for whole body (20 cohorts of European ancestry with n = 38,292) and appendicular (arms and legs) lean body mass (n = 28,330) measured using dual energy X-ray absorptiometry or bioelectrical impedance analysis, adjusted for sex, age, height, and fat mass. Twenty-one single-nucleotide polymorphisms were significantly associated with lean body mass either genome wide (p < 5 × 10-8) or suggestively genome wide (p < 2.3 × 10-6). Replication in 63,475 (47,227 of European ancestry) individuals from 33 cohorts for whole body lean body mass and in 45,090 (42,360 of European ancestry) subjects from 25 cohorts for appendicular lean body mass was successful for five single-nucleotide polymorphisms in/near HSD17B11, VCAN, ADAMTSL3, IRS1, and FTO for total lean body mass and for three single-nucleotide polymorphisms in/near VCAN, ADAMTSL3, and IRS1 for appendicular lean body mass. Our findings provide new insight into the genetics of lean body mass.Lean body mass is a highly heritable trait and is associated with various health conditions. Here, Kiel and colleagues perform a meta-analysis of genome-wide association studies for whole body lean body mass and find five novel genetic loci to be significantly associated.
View details for
PubMedID 28724990
Dependence of Calculated Postshock Thermodynamic Variables on Vibrational Equilibrium and Input Uncertainty
JOURNAL OF THERMOPHYSICS AND HEAT TRANSFER
Campbell, M. F., Owen, K. G., Davidson, D. F., Hanson, R. K.
2017
31 (3)
: 586–608
View details for
DOI 10.2514/1.T4952
View details for
Web of Science ID 000405487900009
Infrared laser-absorption sensing for combustion gases
PROGRESS IN ENERGY AND COMBUSTION SCIENCE
Goldenstein, C. S., Spearrin, R. M., Jeffries, J. B., Hanson, R. K.
2017
60
: 132-176
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DOI 10.1016/j.pecs.2016.12.002
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Web of Science ID 000398225200005
Compact optical probe for flame temperature and carbon dioxide using interband cascade laser absorption near 4.2 mu m
COMBUSTION AND FLAME
Girard, J. J., Spearrin, R. M., Goldenstein, C. S., Hanson, R. K.
2017
178
: 158-167
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DOI 10.1016/j.combustflame.2017.01.007
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Web of Science ID 000397073200013
Time-resolved sub-ppm CH3 detection in a shock tube using cavity-enhanced absorption spectroscopy with a ps-pulsed UV laser
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Wang, S., Davidson, D. F., Jeffries, J. B., Hanson, R. K.
2017
36 (3)
: 4549-4556
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DOI 10.1016/j.proci.2016.08.012
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Web of Science ID 000393412600137
Combined Ab Initio, Kinetic Modeling, and Shock Tube Study of the Thermal Decomposition of Ethyl Formate.
The journal of physical chemistry. A
Ning, H. n., Wu, J. n., Ma, L. n., Ren, W. n., Davidson, D. F., Hanson, R. K.
2017
121 (35)
: 6568–79
Abstract
The potential energy surfaces (PESs) and reaction rate constants of the unimolecular decomposition of ethyl formate (EF) were investigated using high-precision theoretical methods at the CCSD(T)/CBS(T-Q)//M06-2X/6-311++G(d,p) level of theory. The calculated PESs of EF dissociation and molecular decomposition reactions indicate that the intramolecular H-shift to produce formic acid and ethylene is the dominant decomposition pathway. A detailed chemical kinetic mechanism for EF pyrolysis was constructed by incorporating the important reactions of EF and its radicals into an existing mechanism previously developed for small methyl esters. The updated mechanism was first used to reproduce CO, CO2, and H2O concentration time histories during EF pyrolysis in the shock tube reported by Ren et al. [ Ren , W. , Mitchell Spearrin , R. , Davidson , D. F. , and Hanson , R. K. J. Phys. Chem. A 2014 , 118 , 1785 - 1798 ]. The rate of production and sensitivity analyses show that the competing dehydration and decarboxylation channels of the intermediate formic acid control the final product yields of EF pyrolysis. The EF mechanism was further validated against the shock tube data of OH, CO, CO2, and H2O time histories measured during EF oxidation (equivalence ratio Φ = 1.0) at 1331-1615 K and 1.52-1.74 atm. This revised EF mechanism captured all of the species' time histories over the entire temperature range. Such modeling capability was due to the more accurate rate constants of EF reactions determined by high-precision theoretical calculations and a high-fidelity C0-C2 basis mechanism.
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PubMedID 28792750
Shock tube/laser absorption measurements of the pyrolysis of a bimodal test fuel
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Parise, T., Davidson, D. F., Hanson, R. K.
2017
36 (1)
: 281-288
View details for
DOI 10.1016/j.proci.2016.07.081
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Web of Science ID 000397464200023
Pyrolysis and oxidation of methyl acetate in a shock tube: A multi-species time-history study
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Ren, W., Lam, K., Davidson, D. F., Hanson, R. K., Yang, X.
2017
36 (1)
: 255-264
View details for
DOI 10.1016/j.proci.2016.05.002
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Web of Science ID 000397464200020
Rate constants of long, branched, and unsaturated aldehydes with OH at elevated temperatures
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Wang, S., Davidson, D. F., Hanson, R. K.
2017
36 (1)
: 151-160
View details for
DOI 10.1016/j.proci.2016.06.017
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Web of Science ID 000397464200008
Ignition delay time correlations for distillate fuels
FUEL
Davidson, D. F., Zhu, Y., Shao, J., Hanson, R. K.
2017
187
: 26-32
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DOI 10.1016/j.fuel.2016.09.047
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Web of Science ID 000386187100004
Mid-infrared laser absorption spectroscopy of NO2 at elevated temperatures
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Sur, R., Peng, W. Y., Strand, C., Spearrin, R. M., Jeffries, J. B., Hanson, R. K., Bekal, A., Haider, P., Poonacha, S. P., Vartak, S., Sridharan, A. K.
2017
187
: 364-374
View details for
DOI 10.1016/j.jqsrt.2016.10.016
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Web of Science ID 000391899300036
Single-ended mid-infrared laser-absorption sensor for simultaneous in situ measurements of H2O, CO2, CO, and temperature in combustion flows
APPLIED OPTICS
Peng, W. Y., Goldenstein, C. S., Spearrin, M., Jeffries, J. B., Hanson, R. K.
2016
55 (33)
: 9347-9359
View details for
DOI 10.1364/AO.55.009347
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Web of Science ID 000388936300003
Kinetics of Excited Oxygen Formation in Shock-Heated O-2-Ar Mixtures
JOURNAL OF PHYSICAL CHEMISTRY A
Nations, M., Wang, S., Goldenstein, C. S., Davidson, D. F., Hanson, R. K.
2016
120 (42)
: 8234-8243
View details for
DOI 10.1021/acs.jpca.6b07274
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Web of Science ID 000386641400003
Oxygen Vibrational Relaxation Times: Shock Tube/Laser Absorption Measurements
JOURNAL OF THERMOPHYSICS AND HEAT TRANSFER
Owen, K. G., Davidson, D. F., Hanson, R. K.
2016
30 (4)
: 791-798
View details for
DOI 10.2514/1.T4505
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Web of Science ID 000387338000001
Shock Tube Measurement for the Dissociation Rate Constant of Acetaldehyde Using Sensitive CO Diagnostics.
journal of physical chemistry. A
Wang, S., Davidson, D. F., Hanson, R. K.
2016
120 (35)
: 6895-6901
Abstract
The rate constant of acetaldehyde thermal dissociation, CH3CHO = CH3 + HCO, was measured behind reflected shock waves at temperatures of 1273-1618 K and pressures near 1.6 and 0.34 atm. The current measurement utilized sensitive CO diagnostics to track the dissociation of CH3CHO via oxygen atom balance and inferred the title rate constant (k1) from CO time histories obtained in pyrolysis experiments of 1000 and 50 ppm of CH3CHO/Ar mixtures. By using dilute test mixtures, the current study successfully suppressed the interferences from secondary reactions and directly determined the title rate constant as k1(1.6 atm) = 1.1 × 10(14) exp(-36 700 K/T) s(-1) over 1273-1618 K and k1(0.34 atm) = 5.5 × 10(12) exp(-32 900 K/T) s(-1) over 1377-1571 K, with 2σ uncertainties of approximately ±30% for both expressions. Example simulations of existing reaction mechanisms updated with the current values of k1 demonstrated substantial improvements with regards to the acetaldehyde pyrolysis chemistry.
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DOI 10.1021/acs.jpca.6b03647
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PubMedID 27523494
Improved Shock Tube Measurement of the CH4 + Ar = CH3 + H + Ar Rate Constant using UV Cavity-Enhanced Absorption Spectroscopy of CH3.
journal of physical chemistry. A
Wang, S., Davidson, D. F., Hanson, R. K.
2016
120 (28)
: 5427-5434
Abstract
We report an improved measurement for the rate constant of methane dissociation in argon (CH4 + Ar = CH3 + H + Ar) behind reflected shock waves. The experiment was conducted using a sub-parts per million sensitivity CH3 diagnostic recently developed in our laboratory based on ultraviolet cavity-enhanced absorption spectroscopy. The high sensitivity of this diagnostic allowed for measurements of quantitatively resolved CH3 time histories during the initial stage of CH4 pyrolysis, where the reaction system is clean and free from influences of secondary reactions and temperature change. This high sensitivity also allowed extension of our measurement range to much lower temperatures (<1500 K). The current-reflected shock measurements were performed at temperatures between 1487 and 1866 K and pressures near 1.7 atm, resulting in the following Arrhenius rate constant expression for the title reaction: k(1.7 atm) = 3.7 × 10(16) exp(-42 200 K/T) cm(3)/mol·s, with a 2σ uncertainty factor of 1.25. The current data are in good consensus with various theoretical and review studies, but at the low temperature end they suggest a slightly higher (up to 35%) rate constant compared to these previous results. A re-evaluation of previous and current experimental data in the falloff region was also performed, yielding updated expressions for both the low-pressure limit and the high-pressure limit rate constants and improved agreement with all existing data.
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DOI 10.1021/acs.jpca.6b02572
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PubMedID 27380878
AEROFROSH: a shock condition calculator for multi-component fuel aerosol-laden flows
SHOCK WAVES
Campbell, M. F., Haylett, D. R., Davidson, D. F., Hanson, R. K.
2016
26 (4)
: 429-447
View details for
DOI 10.1007/s00193-015-0582-3
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Web of Science ID 000382401300007
High-sensitivity in situ QCLAS-based ammonia concentration sensor for high-temperature applications
APPLIED PHYSICS B-LASERS AND OPTICS
Peng, W. Y., Sur, R., Strand, C. L., Spearrin, R. M., Jeffries, J. B., Hanson, R. K.
2016
122 (7)
View details for
DOI 10.1007/s00340-016-6464-2
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Web of Science ID 000380265200008
Line intensities and temperature-dependent line broadening coefficients of Q-branch transitions in the v(2) band of ammonia near 10.4 mu m
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Sur, R., Spearrin, R. M., Peng, W. Y., Strand, C. L., Jeffries, J. B., Enns, G. M., Hanson, R. K.
2016
175
: 90-99
View details for
DOI 10.1016/j.jqsrt.2016.02.002
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Web of Science ID 000373542700009
Line intensities and temperature-dependent line broadening coefficients of Q-branch transitions in the v2 band of ammonia near 10.4 μm.
Journal of quantitative spectroscopy & radiative transfer
Sur, R., Spearrin, R. M., Peng, W. Y., Strand, C. L., Jeffries, J. B., Enns, G. M., Hanson, R. K.
2016
175
: 90-99
Abstract
We report measured line intensities and temperature-dependent broadening coefficients of NH3 with Ar, N2, O2, CO2, H2O, and NH3 for nine sQ(J,K) transitions in the ν2 fundamental band in the frequency range 961.5-967.5 cm-1. This spectral region was chosen due to the strong NH3 absorption strength and lack of spectral interference from H2O and CO2 for laser-based sensing applications. Spectroscopic parameters were determined by multi-line fitting using Voigt lineshapes of absorption spectra measured with two quantum cascade lasers in thermodynamically-controlled optical cells. The temperature dependence of broadening was measured over a range of temperatures between 300 and 600 K. These measurements aid the development of mid-infrared NH3 sensors for a broad range of gas mixtures and at elevated temperatures.
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DOI 10.1016/j.jqsrt.2016.02.002
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PubMedID 29225373
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PubMedCentralID PMC5722251
Measurements of Oxygen Dissociation Using Laser Absorption
JOURNAL OF THERMOPHYSICS AND HEAT TRANSFER
Owen, K. G., Davidson, D. F., Hanson, R. K.
2016
30 (2)
: 274-278
View details for
DOI 10.2514/1.T4506
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Web of Science ID 000374863100003
High-speed OH* chemiluminescence imaging of ignition through a shock tube end-wall
APPLIED PHYSICS B-LASERS AND OPTICS
Troutman, V. A., Strand, C. L., Campbell, M. F., Tulgestke, A. M., Miller, V. A., Davidson, D. F., Hanson, R. K.
2016
122 (3)
View details for
DOI 10.1007/s00340-016-6326-y
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Web of Science ID 000372282600011
Fiber-coupled diode-laser sensors for calibration-free stand-off measurements of gas temperature, pressure, and composition
APPLIED OPTICS
Goldenstein, C. S., Spearrin, R. M., Hanson, R. K.
2016
55 (3)
: 479-484
Abstract
A fiber-coupled near-infrared diode-laser sensor for stand-off measurements of gas temperature, pressure, and composition is presented. This sensor utilizes a fiber bundle with six multimode catch fibers surrounding one single-mode pitch fiber to transmit and receive backscattered laser light in a handheld transmitter/receiver. Scanned-wavelength-modulation spectroscopy with 1f-normalized 2f-detection and fast (80-200 kHz) wavelength modulation were used to provide calibration-free measurements and reduce the influence of spurious cavity noise formed by the overlapping transmitted and reflected laser light. Demonstrations include two-color measurements of temperature, pressure, and H(2)O near 1.4 μm in a propane flame at 2 kHz (SNR=200) and measurements of CH(4) near 1.65 μm (SNR=20 to 1500) at stand-off distances of 15 cm and 10 m, respectively. The fraction of photons collected ranged from 10(4) to 1 parts per million at stand-off distances from 10 cm to 10 m, respectively, and is similar for aluminum and paper reflectors.
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DOI 10.1364/AO.55.000479
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Web of Science ID 000369055100033
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PubMedID 26835920
Scaling relation for high-temperature biodiesel surrogate ignition delay times
FUEL
Campbell, M. F., Davidson, D. F., Hanson, R. K.
2016
164
: 151-159
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DOI 10.1016/j.fuel.2015.09.078
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Web of Science ID 000363476000019
Cavity-enhanced absorption spectroscopy with a ps-pulsed UV laser for sensitive, high-speed measurements in a shock tube
OPTICS EXPRESS
Wang, S., Sun, K., Davidson, D. F., Jeffries, J. B., Hanson, R. K.
2016
24 (1)
: 308-318
View details for
DOI 10.1364/OE.24.000308
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Web of Science ID 000368004800031
Strategies for obtaining long constant-pressure test times in shock tubes
SHOCK WAVES
Campbell, M. F., Parise, T., Tulgestke, A. M., Spearrin, R. M., Davidson, D. F., Hanson, R. K.
2015
25 (6)
: 651-665
View details for
DOI 10.1007/s00193-015-0596-x
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Web of Science ID 000363060300007
Shock-tube measurements of excited oxygen atoms using cavity-enhanced absorption spectroscopy
APPLIED OPTICS
Nations, M., Wang, S., Goldenstein, C. S., Sun, K., Davidson, D. F., Jeffries, J. B., Hanson, R. K.
2015
54 (29)
: 8766-8775
Abstract
We report the use of cavity-enhanced absorption spectroscopy (CEAS) using two distributed feedback diode lasers near 777.2 and 844.6 nm for sensitive, time-resolved, in situ measurements of excited-state populations of atomic oxygen in a shock tube. Here, a 1% O
/Ar mixture was shock-heated to 5400-8000 K behind reflected shock waves. The combined use of a low-finesse cavity, fast wavelength scanning of the lasers, and an off-axis alignment enabled measurements with 10 μs time response and low cavity noise. The CEAS absorption gain factors of 104 and 142 for the P
5←S520 (777.2 nm) and P
0,1,2
3←S310 (844.6 nm) atomic oxygen transitions, respectively, significantly improved the detection sensitivity over conventional single-pass measurements. This work demonstrates the potential of using CEAS to improve shock-tube studies of nonequilibrium electronic-excitation processes at high temperatures.
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DOI 10.1364/AO.54.008766
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Web of Science ID 000362667200028
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PubMedID 26479817
Quantification of Supersonic Impulse Flow Conditions via High-Bandwidth Wavelength Modulation Absorption Spectroscopy
AIAA JOURNAL
Strand, C. L., Hanson, R. K.
2015
53 (10)
: 2978-2987
View details for
DOI 10.2514/1.J053842
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Web of Science ID 000361468800014
The hidden complexities of the simple match
PHYSICS OF FLUIDS
Miller, V. A., Tilghman, M., Hanson, R. K.
2015
27 (9)
View details for
DOI 10.1063/1.4930906
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Web of Science ID 000362570800004
Shock Tube Measurement of the High-Temperature Rate Constant for OH + CH3 -> Products
JOURNAL OF PHYSICAL CHEMISTRY A
Wang, S., Li, S., Davidson, D. F., Hanson, R. K.
2015
119 (33)
: 8799-8805
View details for
DOI 10.1021/acs.jpca.5b05725
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Web of Science ID 000360026500004
Shock Tube Measurement of the High-Temperature Rate Constant for OH + CH3 → Products.
The journal of physical chemistry. A
Wang, S., Li, S., Davidson, D. F., Hanson, R. K.
2015
119 (33)
: 8799-805
Abstract
The reaction between hydroxyl (OH) and methyl radicals (CH3) is critical to hydrocarbon oxidation. Motivated by the sparseness of its high-temperature rate constant data and the large uncertainties in the existing literature values, the current study has remeasured the overall rate constant of the OH + CH3 reaction and extended the measurement temperature range to 1214-1933 K, using simultaneous laser absorption diagnostics for OH and CH3 radicals behind incident and reflected shock waves. tert-Butyl hydroperoxide and azomethane were used as pyrolytic sources for the OH and CH3 radicals, respectively. The current study bridged the temperature ranges of existing experimental data, and good agreement is seen between the current measurement and some previous experimental and theoretical high-temperature studies. A recommendation for the rate constant expression of the title reaction, based on the weighted average of the high-temperature data from selected studies, is given by k1 = 4.19 × 10(1)(T/K)(3.15) exp(5270 K/T) cm(3) mol(-1) s(-1) ±30%, which is valid over 1000-2500 K.
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DOI 10.1021/acs.jpca.5b05725
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PubMedID 26230910
Temperature and number density measurement in non-uniform supersonic flowfields undergoing mixing using toluene PLIF thermometry
APPLIED PHYSICS B-LASERS AND OPTICS
Gamba, M., Miller, V. A., Mungal, M. G., Hanson, R. K.
2015
120 (2)
: 285-304
View details for
DOI 10.1007/s00340-015-6136-7
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Web of Science ID 000358544600013
Infrared planar laser-induced fluorescence with a CW quantum-cascade laser for spatially resolved CO2 and gas properties
APPLIED PHYSICS B-LASERS AND OPTICS
Goldenstein, C. S., Miller, V. A., Hanson, R. K.
2015
120 (2)
: 185-199
View details for
DOI 10.1007/s00340-015-6167-0
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Web of Science ID 000358544600001
Shock-Tube Measurement of Acetone Dissociation Using Cavity-Enhanced Absorption Spectroscopy of CO.
journal of physical chemistry. A
Wang, S., Sun, K., Davidson, D. F., Jeffries, J. B., Hanson, R. K.
2015
119 (28)
: 7257-7262
Abstract
A direct measurement for the rate constant of the acetone dissociation reaction (CH3COCH3 = CH3CO + CH3) was conducted behind reflected shock wave, utilizing a sub-ppm sensitivity CO diagnostic achieved by cavity-enhanced absorption spectroscopy (CEAS). The current experiment eliminated the influence from secondary reactions and temperature change by investigating the clean pyrolysis of <20 ppm acetone in argon. For the first time, the acetone dissociation rate constant (k1) was directly measured over 5.5 orders of magnitude with a high degree of accuracy: k1 (1004-1494 K, 1.6 atm) = 4.39 × 10(55) T(-11.394) exp(-52 140K/T) ± 24% s(-1). This result was seen to agree with most previous studies and has bridged the gap between their temperature and pressure conditions. The current work also served as an example demonstration of the potential of using the CEAS technique in shock-tube kinetics studies.
View details for
DOI 10.1021/jp511642a
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PubMedID 25659401
Scanned-wavelength-modulation-spectroscopy sensor for CO, CO2, CH4 and H2O in a high-pressure engineering-scale transport-reactor coal gasifier
FUEL
Sur, R., Sun, K., Jeffries, J. B., Socha, J. G., Hanson, R. K.
2015
150
: 102-111
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DOI 10.1016/j.fuel.2015.02.003
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Web of Science ID 000351710400013
High-sensitivity interference-free diagnostic for measurement of methane in shock tubes
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Sur, R., Wang, S., Sun, K., Davidson, D. F., Jeffries, J. B., Hanson, R. K.
2015
156
: 80-87
View details for
DOI 10.1016/j.jqsrt.2015.01.023
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Web of Science ID 000351969700009
Shock tube and modeling study of 2,7-dimethyloctane pyrolysis and oxidation
COMBUSTION AND FLAME
Li, S., Sarathy, S. M., Davidson, D. F., Hanson, R. K., Westbrook, C. K.
2015
162 (5)
: 2296-2306
View details for
DOI 10.1016/j.combustflame.2015.01.027
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Web of Science ID 000358561500057
An experimental and modeling study of propene oxidation. Part 2: Ignition delay time and flame speed measurements
COMBUSTION AND FLAME
Burke, S. M., Burke, U., Mc Donagh, R., Mathieu, O., Osorio, I., Keesee, C., Morones, A., Petersen, E. L., Wang, W., DeVerter, T. A., Oehlschlaeger, M. A., Rhodes, B., Hanson, R. K., Davidson, D. F., Weber, B. W., Sung, C., Santner, J., Ju, Y., Haas, F. M., Dryer, F. L., Volkov, E. N., Nilsson, E. J., Konnov, A. A., Alrefae, M., Khaled, F., Farooq, A., Dirrenberger, P., Glaude, P., Battin-Leclerc, F., Curran, H. J.
2015
162 (2)
: 296-314
View details for
DOI 10.1016/j.combustflame.2014.07.032
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Web of Science ID 000348411900003
Diode-laser measurements of linestrength and temperature-dependent lineshape parameters for H2O transitions near 1.4 mu m using Voigt, Rautian, Galatry, and speed-dependent Voigt profiles
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Goldenstein, C. S., Hanson, R. K.
2015
152
: 127-139
View details for
DOI 10.1016/j.jqsrt.2014.11.008
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Web of Science ID 000348959700011
High temperature measurements for the rate constants of C-1-C-4 aldehydes with OH in a shock tube
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Wang, S., Davidson, D. F., Hanson, R. K.
2015
35
: 473-480
View details for
DOI 10.1016/j.proci.2014.06.112
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Web of Science ID 000348047500044
Shock Tube/Laser Absorption Measurements of Jet Fuel Pyrolysis and Oxidation
53rd AIAA Aerospace Sciences Meeting
Zhu, Y., Hanson, R. K., Davidson, D. F.
2015
View details for
DOI 10.2514/6.2015-1158
Constrained Reaction Volume: A New Approach to Studying Reactive Systems in Shock Tubes
29th International Symposium on Shock Waves
Hanson, R. K., Chakraborty, S., Pang, G. A., Ren, W., Wang, S., Davidson, D. F.
2015
: 149–154
View details for
DOI 10.1007/978-3-319-16835-7_21
Laser Absorption Diagnostics for Aldehydes in Shock Tube Kinetics Studies
29th International Symposium on Shock Waves
Wang, S., Davidson, D. F., Hanson, R. K.
2015
: 155–160
View details for
DOI 10.1007/978-3-319-16835-7_22
Constrained reaction volume shock tube study of n-heptane oxidation: Ignition delay times and time-histories of multiple species and temperature
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Campbell, M. F., Wang, S., Goldenstein, C. S., Spearrin, R. M., Tulgestke, A. M., Zaczek, L. T., Davidson, D. F., Hanson, R. K.
2015
35
: 231-239
View details for
DOI 10.1016/j.proci.2014.05.001
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Web of Science ID 000348047500016
Ignition delay times of conventional and alternative fuels behind reflected shock waves
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Zhu, Y., Li, S., Davidson, D. F., Hanson, R. K.
2015
35
: 241-248
View details for
DOI 10.1016/j.proci.2014.05.034
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Web of Science ID 000348047500017
Shock Tube Study of Dimethylamine Oxidation
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
Li, S., Davidson, D. F., Hanson, R. K.
2015
47 (1)
: 19-26
View details for
DOI 10.1002/kin.20888
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Web of Science ID 000345572600003
High-temperature iso-butene absorption diagnostic for shock tube kinetics using a pulsed quantum cascade laser near 11.3 mu m
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Spearrin, R. M., Li, S., Davidson, D. F., Jeffries, J. B., Hanson, R. K.
2015
35
: 3645-3651
View details for
DOI 10.1016/j.proci.2014.04.002
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Web of Science ID 000348049500134
A shock tube study of CH3OH + OH -> Products using OH laser absorption
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Zaczek, L. T., Lam, K. Y., Davidson, D. F., Hanson, R. K.
2015
35
: 377-384
View details for
DOI 10.1016/j.proci.2014.05.051
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Web of Science ID 000348047500033
Infrared laser absorption sensors for multiple performance parameters in a detonation
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Goldenstein, C. S., Spearrin, R. M., Jeffries, J. B., Hanson, R. K.
2015
35
: 3739-3747
View details for
DOI 10.1016/j.proci.2014.05.027
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Web of Science ID 000348049500145
Laser absorption of nitric oxide for thermometry in high-enthalpy air
MEASUREMENT SCIENCE & TECHNOLOGY
Spearrin, R. M., Schultz, I. A., Jeffries, J. B., Hanson, R. K.
2014
25 (12)
View details for
DOI 10.1088/0957-0233/25/12/125103
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Web of Science ID 000345286800013
Reaction Rate Constant of CH2O + H = HCO + H-2 Revisited: A Combined Study of Direct Shock Tube Measurement and Transition State Theory Calculation
JOURNAL OF PHYSICAL CHEMISTRY A
Wang, S., Dames, E. E., Davidson, D. F., Hanson, R. K.
2014
118 (44)
: 10201-10209
View details for
DOI 10.1021/jp5085795
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Web of Science ID 000344579100005
Reaction rate constant of CH2O + H = HCO + H2 revisited: a combined study of direct shock tube measurement and transition state theory calculation.
The journal of physical chemistry. A
Wang, S., Dames, E. E., Davidson, D. F., Hanson, R. K.
2014
118 (44)
: 10201-9
Abstract
The rate constant of the H-abstraction reaction of formaldehyde (CH2O) by hydrogen atoms (H), CH2O + H = H2 + HCO, has been studied behind reflected shock waves with use of a sensitive mid-IR laser absorption diagnostic for CO, over temperatures of 1304-2006 K and at pressures near 1 atm. C2H5I was used as an H atom precursor and 1,3,5-trioxane as the CH2O precursor, to generate a well-controlled CH2O/H reacting system. By designing the experiments to maintain relatively constant H atom concentrations, the current study significantly boosted the measurement sensitivity of the target reaction and suppressed the influence of interfering reactions. The measured CH2O + H rate constant can be expressed in modified Arrhenius from as kCH2O+H(1304-2006 K, 1 atm) = 1.97 × 10(11)(T/K)(1.06) exp(-3818 K/T) cm(3) mol(-1)s(-1), with uncertainty limits estimated to be +18%/-26%. A transition-state-theory (TST) calculation, using the CCSD(T)-F12/VTZ-F12 level of theory, is in good agreement with the shock tube measurement and extended the temperature range of the current study to 200-3000 K, over which a modified Arrhenius fit of the rate constant can be expressed as kCH2O+H(200-3000 K) = 5.86 × 10(3)(T/K)(3.13) exp(-762 K/T) cm(3) mol(-1)s(-1).
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DOI 10.1021/jp5085795
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PubMedID 25319141
Simultaneous sensing of temperature, CO, and CO2 in a scramjet combustor using quantum cascade laser absorption spectroscopy
APPLIED PHYSICS B-LASERS AND OPTICS
Spearrin, R. M., Goldenstein, C. S., Schultz, I. A., Jeffries, J. B., Hanson, R. K.
2014
117 (2)
: 689-698
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DOI 10.1007/s00340-014-5884-0
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Web of Science ID 000343717300021
Hypersonic Scramjet Testing via Diode Laser Absorption in a Reflected Shock Tunnel
JOURNAL OF PROPULSION AND POWER
Schultz, I. A., Goldenstein, C. S., Strand, C. L., Jeffries, J. B., Hanson, R. K., Goyne, C. P.
2014
30 (6)
: 1586-1594
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DOI 10.2514/1.B35220
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Web of Science ID 000344145000018
Multispecies Midinfrared Absorption Measurements in a Hydrocarbon-Fueled Scramjet Combustor
JOURNAL OF PROPULSION AND POWER
Schultz, I. A., Goldenstein, C. S., Spearrin, R. M., Jeffries, J. B., Hanson, R. K., Rockwell, R. D., Goyne, C. P.
2014
30 (6)
: 1595-1604
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DOI 10.2514/1.B35261
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Web of Science ID 000344145000019
A scanned-wavelength-modulation absorption-spectroscopy sensor for temperature and H2O in low-pressure flames
MEASUREMENT SCIENCE & TECHNOLOGY
Smith, C. H., Goldenstein, C. S., Hanson, R. K.
2014
25 (11)
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DOI 10.1088/0957-0233/25/11/115501
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Web of Science ID 000343940800027
Spatially Resolved Water Measurements in a Scramjet Combustor Using Diode Laser Absorption
JOURNAL OF PROPULSION AND POWER
Schultz, I. A., Goldenstein, C. S., Jeffries, J. B., Hanson, R. K., Rockwell, R. D., Goyne, C. P.
2014
30 (6)
: 1551-1558
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DOI 10.2514/1.B35219
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Web of Science ID 000344145000014
A comparative study of the chemical kinetics of methyl and ethyl propanoate
FUEL
Farooq, A., Davidson, D. F., Hanson, R. K., Westbrook, C. K.
2014
134
: 26-38
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DOI 10.1016/j.fuel.2014.05.035
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Web of Science ID 000340304100004
Time-resolved in situ detection of CO in a shock tube using cavity-enhanced absorption spectroscopy with a quantum-cascade laser near 4.6 mu m
OPTICS EXPRESS
Sun, K., Wang, S., Sur, R., Chao, X., Jeffries, J. B., Hanson, R. K.
2014
22 (20)
: 24559-24565
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DOI 10.1364/OE.22.024559
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Web of Science ID 000342757000079
Application of wavelength-scanned wavelength-modulation spectroscopy H2O absorption measurements in an engineering-scale high-pressure coal gasifier
APPLIED PHYSICS B-LASERS AND OPTICS
Sun, K., Sur, R., Jeffries, J. B., Hanson, R. K., Clark, T., Anthony, J., Machovec, S., Northington, J.
2014
117 (1)
: 411-421
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DOI 10.1007/s00340-014-5850-x
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Web of Science ID 000342225300048
Recent advances in laser absorption and shock tube methods for studies of combustion chemistry
PROGRESS IN ENERGY AND COMBUSTION SCIENCE
Hanson, R. K., Davidson, D. F.
2014
44
: 103-114
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DOI 10.1016/j.pecs.2014.05.001
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Web of Science ID 000340340800004
20 kHz toluene planar laser-induced fluorescence imaging of a jet in nearly sonic crossflow
APPLIED PHYSICS B-LASERS AND OPTICS
Miller, V. A., Troutman, V. A., Mungal, M. G., Hanson, R. K.
2014
117 (1)
: 401-410
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DOI 10.1007/s00340-014-5849-3
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Web of Science ID 000342225300047
Shock tube study of ethylamine pyrolysis and oxidation
COMBUSTION AND FLAME
Li, S., Davidson, D. F., Hanson, R. K.
2014
161 (10)
: 2512-2518
View details for
DOI 10.1016/j.combustflame.2014.04.002
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Web of Science ID 000341905200004
High-bandwidth scanned-wavelength-modulation spectroscopy sensors for temperature and H2O in a rotating detonation engine
MEASUREMENT SCIENCE & TECHNOLOGY
Goldenstein, C. S., Almodovar, C. A., Jeffries, J. B., Hanson, R. K., Brophy, C. M.
2014
25 (10)
View details for
DOI 10.1088/0957-0233/25/10/105104
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Web of Science ID 000342357400015
Pyrolysis study of conventional and alternative fuels behind reflected shock waves
FUEL
Li, S., Zhu, Y., Davidson, D. F., Hanson, R. K.
2014
132
: 170-177
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DOI 10.1016/j.fuel.2014.04.077
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Web of Science ID 000336669500023
Wavelength-modulation spectroscopy near 2.5 mu m for H2O and temperature in high-pressure and -temperature gases
APPLIED PHYSICS B-LASERS AND OPTICS
Goldenstein, C. S., Spearrin, R. M., Jeffries, J. B., Hanson, R. K.
2014
116 (3)
: 705-716
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DOI 10.1007/s00340-013-5754-1
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Web of Science ID 000340492400023
Multi-band infrared CO2 absorption sensor for sensitive temperature and species measurements in high-temperature gases
APPLIED PHYSICS B-LASERS AND OPTICS
Spearrin, R. M., Ren, W., Jeffries, J. B., Hanson, R. K.
2014
116 (4)
: 855-865
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DOI 10.1007/s00340-014-5772-7
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Web of Science ID 000341369600011
Scanned-wavelength-modulation spectroscopy near 2.5 mu m for H2O and temperature in a hydrocarbon-fueled scramjet combustor
APPLIED PHYSICS B-LASERS AND OPTICS
Goldenstein, C. S., Schultz, I. A., Spearrin, R. M., Jeffries, J. B., Hanson, R. K.
2014
116 (3)
: 717-727
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DOI 10.1007/s00340-013-5755-0
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Web of Science ID 000340492400024
FTIR measurements of mid-IR absorption spectra of gaseous fatty acid methyl esters at T=25-500 degrees C
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Campbell, M. F., Freeman, K. G., Davidson, D. F., Hanson, R. K.
2014
145
: 57-73
View details for
DOI 10.1016/j.jqsrt.2014.04.017
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Web of Science ID 000338821700007
Shock Tube Measurements of Ignition Delay Times for the Butanol Isomers Using the Constrained-Reaction-VolumeStrategy
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
Bec, I. L., Zhu, Y., Davidson, D. F., Hanson, R. K.
2014
46 (8)
: 433-442
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DOI 10.1002/kin.20859
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Web of Science ID 000338008900002
TDLAS-based sensors for in situ measurement of syngas composition in a pressurized, oxygen-blown, entrained flow coal gasifier
APPLIED PHYSICS B-LASERS AND OPTICS
Sur, R., Sun, K., Jeffries, J. B., Hanson, R. K., Pummill, R. J., Waind, T., Wagner, D. R., Whitty, K. J.
2014
116 (1)
: 33-42
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DOI 10.1007/s00340-013-5644-6
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Web of Science ID 000337498500006
Near-kHz 3D tracer-based LIF imaging of a co-flow jet using toluene
MEASUREMENT SCIENCE & TECHNOLOGY
Miller, V. A., Troutman, V. A., Hanson, R. K.
2014
25 (7)
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DOI 10.1088/0957-0233/25/7/075403
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Web of Science ID 000338634700033
Laser absorption diagnostic for measuring acetylene concentrations in shock tubes
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Stranic, I., Hanson, R. K.
2014
142
: 58-65
View details for
DOI 10.1016/j.jqsrt.2014.03.024
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Web of Science ID 000336706300007
Ignition delay times of very-low-vapor-pressure biodiesel surrogates behind reflected shock waves
FUEL
Campbell, M. F., Davidson, D. F., Hanson, R. K.
2014
126
: 271-281
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DOI 10.1016/j.fuel.2014.02.050
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Web of Science ID 000333978500033
Diode Laser Absorption Sensor for Combustion Progress in a Model Scramjet
JOURNAL OF PROPULSION AND POWER
Schultz, I. A., Goldenstein, C. S., Jeffries, J. B., Hanson, R. K., Rockwell, R. D., Goyne, C. P.
2014
30 (3)
: 550-557
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DOI 10.2514/1.B34905
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Web of Science ID 000336353500004
A second-generation constrained reaction volume shock tube.
Review of scientific instruments
Campbell, M. F., Tulgestke, A. M., Davidson, D. F., Hanson, R. K.
2014
85 (5)
: 055108-?
Abstract
We have developed a shock tube that features a sliding gate valve in order to mechanically constrain the reactive test gas mixture to an area close to the shock tube endwall, separating it from a specially formulated non-reactive buffer gas mixture. This second-generation Constrained Reaction Volume (CRV) strategy enables near-constant-pressure shock tube test conditions for reactive experiments behind reflected shocks, thereby enabling improved modeling of the reactive flow field. Here we provide details of the design and operation of the new shock tube. In addition, we detail special buffer gas tailoring procedures, analyze the buffer/test gas interactions that occur on gate valve opening, and outline the size range of fuels that can be studied using the CRV technique in this facility. Finally, we present example low-temperature ignition delay time data to illustrate the CRV shock tube's performance.
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DOI 10.1063/1.4875056
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PubMedID 24880416
Wavelength-modulation spectroscopy near 1.4 mu m for measurements of H2O and temperature in high-pressure and-temperature gases
MEASUREMENT SCIENCE & TECHNOLOGY
Goldenstein, C. S., Spearrin, R. M., Schultz, I. A., Jeffries, J. B., Hanson, R. K.
2014
25 (5)
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DOI 10.1088/0957-0233/25/5/055101
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Web of Science ID 000334352000009
An improved kinetic mechanism for 3-pentanone pyrolysis and oxidation developed using multispecies time histories in shock-tubes
COMBUSTION AND FLAME
Dames, E. E., Lam, K., Davidson, D. F., Hanson, R. K.
2014
161 (5)
: 1135-1145
View details for
DOI 10.1016/j.combustflame.2013.11.010
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Web of Science ID 000334654000001
Sensitive and rapid laser diagnostic for shock tube kinetics studies using cavity-enhanced absorption spectroscopy
OPTICS EXPRESS
Sun, K., Wang, S., Sur, R., Chao, X., Jeffries, J. B., Hanson, R. K.
2014
22 (8)
: 9291-9300
Abstract
We report the first application of cavity-enhanced absorption spectroscopy (CEAS) using a coherent light source for sensitive and rapid gaseous species time-history measurements in a shock tube. Off-axis alignment and fast scanning of the laser wavelength were used to minimize coupling noise in a low-finesse cavity. An absorption gain factor of 83 with a measurement time resolution of 20 µs was demonstrated for C2H2 detection using a near-infrared transition near 1537 nm, corresponding to a noise-equivalent detection limit of 20 ppm at 296 K and 76 ppm at 906 K at 50 kHz. This substantial gain in signal, relative to conventional single-pass absorption, will enable ultra-sensitive species detection in shock tube kinetics studies, particularly useful for measurements of minor species and for studies of dilute reactive systems.
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DOI 10.1364/OE.22.009291
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Web of Science ID 000335902200046
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PubMedID 24787817
Multi-species laser absorption sensors for in situ monitoring of syngas composition
APPLIED PHYSICS B-LASERS AND OPTICS
Sur, R., Sun, K., Jeffries, J. B., Hanson, R. K.
2014
115 (1)
: 9-24
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DOI 10.1007/s00340-013-5567-2
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Web of Science ID 000332853000002
Quantum cascade laser absorption sensor for carbon monoxide in high-pressure gases using wavelength modulation spectroscopy
APPLIED OPTICS
Spearrin, R. M., Goldenstein, C. S., Jeffries, J. B., Hanson, R. K.
2014
53 (9)
: 1938-1946
Abstract
A tunable quantum cascade laser sensor, based on wavelength modulation absorption spectroscopy near 4.8 μm, was developed to measure CO concentration in harsh, high-pressure combustion gases. The sensor employs a normalized second harmonic detection technique (WMS-2f/1f) at a modulation frequency of 50 kHz. Wavelength selection at 2059.91  cm
-1
targets the P(20) transition within the fundamental vibrational band of CO, chosen for absorption strength and relative isolation from infrared water and carbon dioxide absorption. The CO spectral model is defined by the Voigt line-shape function, and key line-strength and line-broadening spectroscopic parameters were taken from the literature or measured. Sensitivity analysis identified the CO-N
collisional broadening coefficient as most critical for uncertainty mitigation in hydrocarbon/air combustion exhaust measurements, and this parameter was experimentally derived over a range of combustion temperatures (1100-2600 K) produced in a shock tube. Accuracy of the wavelength-modulation-spectroscopy-based sensor, using the refined spectral model, was validated at pressures greater than 40 atm in nonreactive shock-heated gas mixtures. The laser was then free-space coupled to an indium-fluoride single-mode fiber for remote light delivery. The fiber-coupled sensor was demonstrated on an ethylene/air pulse detonation combustor, providing time-resolved (∼20  kHz), in situ measurements of CO concentration in a harsh flow field.
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DOI 10.1364/AO.53.001938
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Web of Science ID 000333343900028
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PubMedID 24663473
Experimental and Modeling Study of the Thermal Decomposition of C3-C5 Ethyl Esters Behind Reflected Shock Waves
JOURNAL OF PHYSICAL CHEMISTRY A
Ren, W., Spearrin, R. M., Davidson, D. F., Hanson, R. K.
2014
118 (10)
: 1785-1798
Abstract
The thermal decomposition of three ethyl esters, ethyl formate (C3H6O2), ethyl acetate (C4H8O2), and ethyl propanoate (C5H10O2), was studied behind reflected shock waves using laser absorption to measure concentration time-histories of H2O, CO2, and CO. Experimental conditions covered temperatures of 1301-1636 K, pressures of 1.48-1.72 atm, and reactant concentrations of 2000 ppm in argon. Recently developed mid-infrared laser diagnostics for H2O (2.5 μm), CO2 (4.3 μm), and CO (4.6 μm) provide orders-of-magnitude greater detectivity compared to previous near-infrared absorption sensors. The experimental results have highlighted significant differences among these three ethyl esters: negligible CO2 production during ethyl formate pyrolysis, quite slow CO formation rate during ethyl acetate pyrolysis, and nearly equal formation rate of H2O, CO2, and CO during ethyl propanoate pyrolysis. Detailed kinetic modeling was performed to understand the destruction pathways of these three ethyl esters with different alkyl chain lengths. Rate of production and sensitivity analyses were also carried out to interpret the experimental results and to identify the key reactions affecting experimental results.
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DOI 10.1021/jp411766b
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Web of Science ID 000333006100005
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PubMedID 24450585
1-Butanol ignition delay times at low temperatures: An application of the constrained-reaction-volume strategy
COMBUSTION AND FLAME
Zhu, Y., Davidson, D. F., Hanson, R. K.
2014
161 (3)
: 634-643
View details for
DOI 10.1016/j.combustflame.2013.06.028
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Web of Science ID 000331428100002
Shock Tube Measurements of the Rate Constant for the Reaction Ethanol plus OH
JOURNAL OF PHYSICAL CHEMISTRY A
Stranic, I., Pang, G. A., Hanson, R. K., Golden, D. M., Bowmant, C. T.
2014
118 (5)
: 822-828
Abstract
The overall rate constant for the reaction ethanol + OH → products was determined experimentally from 900 to 1270 K behind reflected shock waves. Ethan(18)ol was utilized for these measurements in order to avoid the recycling of OH radicals following H-atom abstraction at the β-site of ethanol. Similar experiments were also performed with unlabeled ethan(16)ol in order to infer the rate constant that excludes reactivity at the β-site. The two data sets were used to directly infer the branching ratio for the reaction at the β-site. Experimental data in the current study and in previous low-temperature studies for the overall rate constant are best fit by the expression koverall = 5.07 × 10(5) T[K](2.31) exp(608/T[K]) cm(3) mol(-1) s(-1), valid from 300 to 1300 K. Measurements indicate that the branching ratio of the β-site is between 20 and 25% at the conditions studied. Pseudo-first-order reaction conditions were generated using tert-butylhydroperoxide (TBHP) as a fast source of (16)OH with ethanol in excess. (16)OH mole fraction time-histories were measured using narrow-line width laser absorption near 307 nm. Measurements were performed at the linecenter of the R22(5.5) transition in the A-X(0,0) band of (16)OH that does not overlap with any absorption features of (18)OH, thus producing a measurement of the (16)OH mole fraction that is insensitive to the presence of (18)OH.
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DOI 10.1021/jp410853f
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Web of Science ID 000331153400004
Pyrolysis and oxidation of decalin at elevated pressures: A shock-tube study
COMBUSTION AND FLAME
Zhu, Y., Davidson, D. F., Hanson, R. K.
2014
161 (2)
: 371-383
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DOI 10.1016/j.combustflame.2013.09.005
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Web of Science ID 000330094800001
Secondary Diaphragm Thickness Effects and Improved Pressure Measurements in an Expansion Tube
AIAA JOURNAL
Miller, V. A., Gamba, M., Mungal, M. G., Hanson, R. K.
2014
52 (2)
: 451-455
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DOI 10.2514/1.J052767
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Web of Science ID 000337804700019
Shock tube measurements of branched alkane ignition delay times
FUEL
Li, S., Campos, A., Davidson, D. F., Hanson, R. K.
2014
118
: 398-405
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DOI 10.1016/j.fuel.2013.11.028
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Web of Science ID 000329116600050
Fitting of calibration-free scanned-wavelength-modulation spectroscopy spectra for determination of gas properties and absorption lineshapes
APPLIED OPTICS
Goldenstein, C. S., Strand, C. L., Schultz, I. A., Sun, K., Jeffries, J. B., Hanson, R. K.
2014
53 (3)
: 356-367
Abstract
The development and initial demonstration of a scanned-wavelength, first-harmonic-normalized, wavelength-modulation spectroscopy with nf detection (scanned-WMS-nf/1f) strategy for calibration-free measurements of gas conditions are presented. In this technique, the nominal wavelength of a modulated tunable diode laser (TDL) is scanned over an absorption transition to measure the corresponding scanned-WMS-nf/1f spectrum. Gas conditions are then inferred from least-squares fitting the simulated scanned-WMS-nf/1f spectrum to the measured scanned-WMS-nf/1f spectrum, in a manner that is analogous to widely used scanned-wavelength direct-absorption techniques. This scanned-WMS-nf/1f technique does not require prior knowledge of the transition linewidth for determination of gas properties. Furthermore, this technique can be used with any higher harmonic (i.e., n>1), modulation depth, and optical depth. Selection of the laser modulation index to maximize both signal strength and sensitivity to spectroscopic parameters (i.e., gas conditions), while mitigating distortion, is described. Last, this technique is demonstrated with two-color measurements in a well-characterized supersonic flow within the Stanford Expansion Tube. In this demonstration, two frequency-multiplexed telecommunication-grade TDLs near 1.4 μm were scanned at 12.5 kHz (i.e., measurement repetition rate of 25 kHz) and modulated at 637.5 and 825 kHz to determine the gas temperature, pressure, H
O mole fraction, velocity, and absorption transition lineshape. Measurements are shown to agree within uncertainty (1%-5%) of expected values.
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DOI 10.1364/AO.53.000356
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Web of Science ID 000330172300007
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PubMedID 24514120
High-Temperature Measurements of the Reactions of OH with Ethylamine and Dimethylamine
JOURNAL OF PHYSICAL CHEMISTRY A
Li, S., Dames, E., Davidson, D. F., Hanson, R. K.
2014
118 (1)
: 70-77
View details for
DOI 10.1021/jp411141w
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Web of Science ID 000329678100008
High-temperature measurements of the reactions of OH with ethylamine and dimethylamine.
The journal of physical chemistry. A
Li, S., Dames, E., Davidson, D. F., Hanson, R. K.
2014
118 (1)
: 70-7
Abstract
The overall rate constants of hydroxyl radicals (OH) with ethylamine (EA: CH3CH2NH2) and dimethylamine (DMA: CH3NHCH3) were investigated behind reflected shock waves using UV laser absorption of OH radicals near 306.7 nm. tert-Butyl hydroperoxide (TBHP) was used as the fast source of OH at elevated temperatures. Test gas mixtures of individual amines and TBHP, diluted in argon, were shock-heated to temperatures from 901 to 1368 K at pressures near 1.2 atm. The overall rate constants were determined by fitting the measured OH time-histories with the computed profiles using a detailed mechanism developed by Lucassen et al. (Combust. Flame 2012, 159, 2254-2279). Over the temperature range studied, the measured rate constants can be expressed as kEA+OH = 1.10 × 10(7)·T(1.93) exp(1450/T) cm(3) mol(-1) s(-1), and kDMA+OH = 2.26 × 10(4)·T(2.69) exp(1797/T) cm(3) mol(-1) s(-1). Detailed error analyses were performed to estimate the overall uncertainties of the measured reaction rate constants, and the estimated (2σ) uncertainties were found to be ±31% at 901 K and ±22% at 1368 K for kEA+OH, and ±29% at 925 K and ±21% at 1307 K for kDMA+OH. Variational transition state theory was used to compute the H-abstraction rates by OH for ethylamine and dimethylamine, with the potential energy surface, geometries, frequencies, and electronic energies calculated by Galano and Alvarez-Idaboy (J. Chem. Theory Comput. 2008, 4, 322-327) at CCSD(T)/6-311++G(2d,2p) level of theory. The calculated reaction rate constants are in good agreement with the experimental data.
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DOI 10.1021/jp411141w
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PubMedID 24328257
Uncertainty-quantification analysis of the effects of residual impurities on hydrogen-oxygen ignition in shock tubes
COMBUSTION AND FLAME
Urzay, J., Kseib, N., Davidson, D. F., Iaccarino, G., Hanson, R. K.
2014
161 (1)
: 1-15
View details for
DOI 10.1016/j.combustflame.2013.08.012
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Web of Science ID 000327419300001
Mid-infrared Absorption Sensor for Measurements of CO and CO2 in Propulsion Flows
52nd Aerospace Sciences Meeting
Spearrin, R. M., Jeffries, J. B., Hanson, R. K.
2014
View details for
DOI 10.2514/6.2014-0390
20 kHz tracer-based PLIF of a jet in crossflow in an expansion tube
17th International Symposium on Applications of Laser Techniques to Fluid Mechanics
Miller, V. A., Troutman, V. A., Mungal, M. G., Hanson, R. K.
2014
Hypersonic scramjet testing via TDLAS measurements of temperature and column density in a reflected shock tunnel
52nd Aerospace Sciences Meeting
Schultz, I. A., Goldenstein, C. S., Strand, C. L., Jeffries, J. B., Hanson, R. K., Goyne, C. P.
2014
View details for
DOI 10.2514/6.2014-0389
Spatially-resolved TDLAS measurements of temperature, H2O column density, and velocity in a direct-connect scramjet combustor
52nd Aerospace Sciences Meeting
Schultz, I. A., Goldenstein, C. S., Jeffries, J. B., Hanson, R. K., Rockwell, R. D., Goyne, C. P.
2014
View details for
DOI 10.2514/6.2014-1241
Shock tube study of the pressure dependence of monomethylhydrazine pyrolysis
COMBUSTION AND FLAME
Li, S., Davidson, D. F., Hanson, R. K.
2014
161 (1)
: 16-22
View details for
DOI 10.1016/j.combustflame.2013.07.023
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Web of Science ID 000327419300002
Laser-absorption sensing of gas composition of products from coal gasification
Conference on Micro- and Nanotechnology Sensors, Systems, and Applications VI
Jeffries, J. B., Sur, R., Sun, K., Hanson, R. K.
SPIE-INT SOC OPTICAL ENGINEERING.
2014
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DOI 10.1117/12.2049788
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Web of Science ID 000342426300017
Shock tube study of methanol, methyl formate pyrolysis: CH3OH and CO time-history measurements
COMBUSTION AND FLAME
Ren, W., Dames, E., Hyland, D., Davidson, D. F., Hanson, R. K.
2013
160 (12)
: 2669-2679
View details for
DOI 10.1016/j.combustflame.2013.06.016
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Web of Science ID 000326061700004
Analysis of calibration-free wavelength-scanned wavelength modulation spectroscopy for practical gas sensing using tunable diode lasers
MEASUREMENT SCIENCE & TECHNOLOGY
Sun, K., Chao, X., Sur, R., Goldenstein, C. S., Jeffries, J. B., Hanson, R. K.
2013
24 (12)
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DOI 10.1088/0957-0233/24/12/125203
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Web of Science ID 000327597700022
Two-color absorption spectroscopy strategy for measuring the column density and path average temperature of the absorbing species in nonuniform gases
APPLIED OPTICS
Goldenstein, C. S., Schultz, I. A., Jeffries, J. B., Hanson, R. K.
2013
52 (33)
: 7950-7962
Abstract
A two-color absorption spectroscopy strategy has been developed for measuring the column density and density-weighted path-average temperature of the absorbing species in nonuniform gases. This strategy uses two transitions with strengths that scale nearly linearly with temperature. In addition, measured lineshapes are used to accurately model absorbance spectra. As a result, the column density and density-weighted path-average temperature of the absorbing species can be inferred from a comparison of signals measured across a nonuniform line of sight (LOS) with simulated signals calculated using a uniform LOS. This strategy is demonstrated with simulations of water-vapor absorption across a nonuniform LOS with temperature and composition gradients comparable to those in hydrogen-air diffusion flames. In this demonstration, both the column density and density-weighted path-average temperature of water vapor are recovered to within 0.5%.
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DOI 10.1364/AO.52.007950
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Web of Science ID 000327467200014
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PubMedID 24513746
Diode laser measurements of linestrength and temperature-dependent lineshape parameters of H2O-, CO2-, and N-2-perturbed H2O transitions near 2474 and 2482 nm
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Goldenstein, C. S., Jeffries, J. B., Hanson, R. K.
2013
130
: 100-111
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DOI 10.1016/j.jqsrt.2013.06.008
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Web of Science ID 000326482100007
High-temperature laser absorption diagnostics for CH2O and CH3CHO and their application to shock tube kinetic studies
COMBUSTION AND FLAME
Wang, S., Davidson, D. F., Hanson, R. K.
2013
160 (10)
: 1930-1938
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DOI 10.1016/j.combustflame.2013.05.004
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Web of Science ID 000322848200002
Shock tube measurements of the rate constant for the reaction cyclohexene -> ethylene+1,3-butadiene
CHEMICAL PHYSICS LETTERS
Stranic, I., Davidson, D. F., Hanson, R. K.
2013
584
: 18-23
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DOI 10.1016/j.cplett.2013.07.067
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Web of Science ID 000324860000004
Shock tube measurements and model development for morpholine pyrolysis and oxidation at high pressures
COMBUSTION AND FLAME
Li, S., Davidson, D. F., Hanson, R. K., Labbe, N. J., Westmoreland, P. R., Osswald, P., Kohse-Hoeinghaus, K.
2013
160 (9)
: 1559-1571
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DOI 10.1016/j.combustflame.2013.03.027
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Web of Science ID 000321234600003
Constrained reaction volume approach for studying chemical kinetics behind reflected shock waves
COMBUSTION AND FLAME
Hanson, R. K., Pang, G. A., Chakraborty, S., Ren, W., Wang, S., Davidson, D. F.
2013
160 (9)
: 1550-1558
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DOI 10.1016/j.combustflame.2013.03.026
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Web of Science ID 000321234600002
Shock Tube Measurements of the tert-Butanol + OH Reaction Rate and the tert-C4H8OH Radical ß-Scission Branching Ratio Using Isotopic Labeling.
journal of physical chemistry. A
Stranic, I., Pang, G. A., Hanson, R. K., Golden, D. M., Bowman, C. T.
2013
117 (23)
: 4777-4784
Abstract
The overall rate constant for the reaction tert-butanol + OH → products was determined experimentally behind reflected shock waves by using (18)O-substituted tert-butanol (tert-butan(18)ol) and tert-butyl hydroperoxide (TBHP) as a fast source of (16)OH. The data were acquired from 900 to 1200 K near 1.1 atm and are best fit by the Arrhenius expression 1.24 × 10(-10) exp(-2501/T [K]) cm(3) molecule(-1) s(-1). The products of the title reaction include the tert-C4H8OH radical that is known to have two major β-scission decomposition channels, one of which produces OH radicals. Experiments with the isotopically labeled tert-butan(18)ol also lead to an experimental determination of the branching ratio for the β-scission pathways of the tert-C4H8OH radical by comparing the measured pseudo-first-order decay rate of (16)OH in the presence of excess tert-butan(16)ol with the respective decay rate of (16)OH in the presence of excess tert-butan(18)ol. The two decay rates of (16)OH as a result of reactions with the two forms of tert-butanol differ by approximately a factor of 5 due to the absence of (16)OH-producing pathways in experiments with tert-butan(18)ol. This indicates that 80% of the (16)OH molecules that react with tert-butan(16)ol will reproduce another (16)OH molecule through β-scission of the resulting tert-C4H8(16)OH radical. (16)OH mole fraction time histories were measured using narrow-line-width laser absorption near 307 nm. Measurements were performed at the line center of the R22(5.5) transition in the A-X(0,0) band of (16)OH, a transition that does not overlap with any absorption features of (18)OH, hence yielding a measurement of (16)OH mole fraction that is insensitive to any production of (18)OH.
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DOI 10.1021/jp402176e
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PubMedID 23683356
Methane and ethylene time-history measurements in n-butane and n-heptane pyrolysis behind reflected shock waves
FUEL
Pyun, S. H., Ren, W., Davidson, D. F., Hanson, R. K.
2013
108
: 557-564
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DOI 10.1016/j.fuel.2012.12.034
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Web of Science ID 000317565100065
Single- and dual-band collection toluene PLIF thermometry in supersonic flows
EXPERIMENTS IN FLUIDS
Miller, V. A., Gamba, M., Mungal, M. G., Hanson, R. K.
2013
54 (6)
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DOI 10.1007/s00348-013-1539-x
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Web of Science ID 000321262300019
A Shock Tube Study of H-2+OH -> H2O+H Using OH Laser Absorption
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
Lam, K., Davidson, D. F., Hanson, R. K.
2013
45 (6)
: 363-373
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DOI 10.1002/kin.20771
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Web of Science ID 000318176700003
Multi-species measurements in 2-butanol and i-butanol pyrolysis behind reflected shock waves
COMBUSTION AND FLAME
Stranic, I., Pyun, S. H., Davidson, D. F., Hanson, R. K.
2013
160 (6)
: 1012-1019
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DOI 10.1016/j.combustflame.2013.01.015
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Web of Science ID 000317701100003
Fiber-coupled 2.7 mu m laser absorption sensor for CO2 in harsh combustion environments
MEASUREMENT SCIENCE & TECHNOLOGY
Spearrin, R. M., Goldenstein, C. S., Jeffries, J. B., Hanson, R. K.
2013
24 (5)
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DOI 10.1088/0957-0233/24/5/055107
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Web of Science ID 000317585600019
Shock tube measurements of methane, ethylene and carbon monoxide time-histories in DME pyrolysis
COMBUSTION AND FLAME
Pyun, S. H., Ren, W., Lam, K., Davidson, D. F., Hanson, R. K.
2013
160 (4)
: 747-754
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DOI 10.1016/j.combustflame.2012.12.004
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Web of Science ID 000315762800001
Real-time, in situ, continuous monitoring of CO in a pulverized-coal-fired power plant with a 2.3 mu m laser absorption sensor
APPLIED PHYSICS B-LASERS AND OPTICS
Chao, X., Jeffries, J. B., Hanson, R. K.
2013
110 (3)
: 359-365
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DOI 10.1007/s00340-012-5262-8
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Web of Science ID 000316198700013
Wavelength modulation diode laser absorption spectroscopy for high-pressure gas sensing
APPLIED PHYSICS B-LASERS AND OPTICS
Sun, K., Chao, X., Sur, R., Jeffries, J. B., Hanson, R. K.
2013
110 (4)
: 497-508
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DOI 10.1007/s00340-012-5286-0
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Web of Science ID 000316339600010
TDL absorption sensors for gas temperature and concentrations in a high-pressure entrained-flow coal gasifier
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Sun, K., Sur, R., Chao, X., Jeffries, J. B., Hanson, R. K., Pummill, R. J., Whitty, K. J.
2013
34
: 3593-3601
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DOI 10.1016/j.proci.2012.05.018
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Web of Science ID 000313131800193
In situ Measurements of Syngas Temperature, Water Vapor and Carbon Dioxide in an Engineering Scale Liquefied Coal Gasifier
8th U.S. National Combustion Meeting
Sun, K., Sur, R., Jeffries, J. B., Hanson, R. K., Clark, T., Anthony, J., Machovec, S., Northington, J.
2013
Monitoring temperature in high enthalpy arc-heated plasma flows using tunable diode laser absorption spectroscopy
44th AIAA Plasmadynamics and Lasers Conference
Martin, M. N., Chang, L. S., Jeffries, J. B., Hanson, R. K., Nawaz, A., Taunk, J., Driver, D. M., Raiche, G.
2013
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DOI 10.2514/6.2013-2761
Laser measurements of bacterial endospore destruction from shock waves
Conference on Micro/Nano Materials, Devices, and Systems
Lappas, P. P., McCartt, A. D., Gates, S. D., Jeffries, J. B., Hanson, R. K.
SPIE-INT SOC OPTICAL ENGINEERING.
2013
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DOI 10.1117/12.2033936
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Web of Science ID 000333057400028
TDLAS-based in situ Monitoring of Syngas Composition from an Oxygen-Blown, Down-Fired Coal Gasifier
8th U.S. National Combustion Meeting
Sur, R., Sun, K., Jeffries, J. B., Hanson, R. K., Pummill, R. S., Whitty, K.
2013
Shock Tube Study of Ethylamine Pyrolysis and Oxidation
8th U.S. National Combustion Meeting
Li, S., Davidson, D. F., Hanson, R. K., Moshammer, K., Kohse-Höinghaus, K.
2013
Combustion Kinetic Modeling using Multispecies Time-histories in Shock Tube Pyrolisis and Oxidation of 3-pentanone
8th U.S. National Combustion Meeting
Lam, K. Y., Davidson, D. F., Hanson, R. K.
2013
Diode Laser Measurements of Temperature and H2O for Monitoring Pulse Detonation Combustor Performance
24th International Colloquium on Dynamics of Explosive and Reactive Systems
Goldenstein, C. S., Schultz, I. A., Spearin, R. M., Jeffries, J. B., Hanson, R. K.
2013
Ignition Delay Times of Very-Low-Vapor-Pressure Biodiesel Surrogate behind Reflected Shock Waves
8th U.S. National Combustion Meeting
Campbell, M. A., Davidson, D. F., Hanson, R. K.
2013
Thermal Decomposition of C3-C5 Ethyl Esters: CO CO2 and H2O Time-history Measurements behind Reflected Shock Waves
8th U.S. National Combustion Meeting
Ren, W., Spearrin, R. M., Davidson, D. F., Hanson, R. K.
2013
Multi-species time-history measurements during high-temperature acetone and 2-butanone pyrolysis
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Lam, K., Ren, W., Pyun, S. H., Farooq, A., Davidson, D. F., Hanson, R. K.
2013
34
: 607-615
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DOI 10.1016/j.proci.2012.06.009
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Web of Science ID 000313125400055
On the rate constants of OH + HO2 and HO2 + HO2: A comprehensive study of H2O2 thermal decomposition using multi-species laser absorption
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Hong, Z., Lam, K., Sur, R., Wang, S., Davidson, D. F., Hanson, R. K.
2013
34
: 565-571
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DOI 10.1016/j.proci.2012.06.108
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Web of Science ID 000313125400050
Multi-species time-history measurements during n-hexadecane oxidation behind reflected shock waves
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Haylett, D. R., Davidson, D. F., Cook, R. D., Hong, Z., Ren, W., Pyun, S. H., Hanson, R. K.
2013
34
: 369-376
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DOI 10.1016/j.proci.2012.06.014
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Web of Science ID 000313125400028
Fuel and Ethylene Measurements during n-dodecane, methylcyclohexane, and iso-cetane pyrolysis in shock tubes
FUEL
MacDonald, M. E., Ren, W., Zhu, Y., Davidson, D. F., Hanson, R. K.
2013
103
: 1060-1068
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DOI 10.1016/j.fuel.2012.09.068
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Web of Science ID 000311932200132
Development of laser absorption techniques for real-time, in-situ dual-species monitoring (NO/NH3, CO/O-2) in combustion exhaust
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Chao, X., Jeffries, J. B., Hanson, R. K.
2013
34
: 3583-3592
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DOI 10.1016/j.proci.2012.05.024
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Web of Science ID 000313131800192
Formulation of an RP-1 pyrolysis surrogate from shock tube measurements of fuel and ethylene time histories
FUEL
MacDonald, M. E., Davidson, D. F., Hanson, R. K., Pitz, W. J., Mehl, M., Westbrook, C. K.
2013
103
: 1051-1059
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DOI 10.1016/j.fuel.2012.10.008
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Web of Science ID 000311932200131
Ignition delay times of methyl oleate and methyl linoleate behind reflected shock waves
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Campbell, M. F., Davidson, D. F., Hanson, R. K., Westbrook, C. K.
2013
34
: 419-425
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DOI 10.1016/j.proci.2012.05.084
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Web of Science ID 000313125400034
Shock tube/laser absorption studies of the decomposition of methyl formate
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Ren, W., Lam, K., Pyun, S. H., Farooq, A., Davidson, D. F., Hanson, R. K.
2013
34
: 453-461
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DOI 10.1016/j.proci.2012.05.071
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Web of Science ID 000313125400038
High-Temperature Measurements of the Reactions of OH with Small Methyl Esters: Methyl Formate, Methyl Acetate, Methyl Propanoate, and Methyl Butanoate
JOURNAL OF PHYSICAL CHEMISTRY A
Lam, K., Davidson, D. F., Hanson, R. K.
2012
116 (50)
: 12229-12241
Abstract
The overall rate constants for the reactions of hydroxyl radicals (OH) with four small methyl esters, namely methyl formate (CH(3)OCHO), methyl acetate (CH(3)OC(O)CH(3)), methyl propanoate (CH(3)OC(O)C(2)H(5)), and methyl butanoate (CH(3)OC(O)C(3)H(7)), were investigated behind reflected shock waves using UV laser absorption of OH radicals near 306.69 nm. Test gas mixtures of individual methyl esters and tert-butyl hydroperoxide (TBHP), a fast source of OH at elevated temperatures, diluted in argon were shock-heated to temperatures spanning from 876 to 1371 K at pressures near 1.5 atm. The overall rate constants were determined by matching the measured OH time-histories with the computed profiles from the comprehensive chemical kinetic mechanisms of Dooley et al. (2010) and Dooley et al. (2008), which were originally developed for the oxidation of methyl formate and methyl butanoate, respectively. These measured values can be expressed in Arrhenius form as k(CH(3)OCHO+OH) = 2.56 × 10(13) exp(-2026/T) cm(3) mol(-1) s(-1), k(CH(3)OC(O)CH(3)+OH) = 3.59 × 10(13) exp(-2438/T) cm(3) mol(-1) s(-1), k(CH(3)OC(O)C(2)H(5)+OH) = 6.65 × 10(13) exp(-2539/T) cm(3) mol(-1) s(-1), and k(CH(3)OC(O)C(3)H(7)+OH) = 1.13 × 10(14) exp(-2515/T) cm(3) mol(-1) s(-1) over the temperature ranges studied. Detailed error analyses were performed to estimate the overall uncertainties of these reactions, and the estimated (2σ) uncertainties were found to be ±29% at 913 K and ±18% at 1289 K for k(CH(3)OCHO+OH), ± 29% at 930 K and ±17% at 1299 K for k(CH(3)OC(O)CH(3)+OH), ± 25% at 909 K and ±17% at 1341 K for k(CH(3)OC(O)C2H(5)+OH), and ±24% at 925 K and ±16% at 1320 K for k(CH(3)OC(O)C(3)H(7)+OH). We believe these are the first direct high-temperature rate constant measurements for the reactions of OH with these small methyl esters. These measured rate constants were also compared with the estimated values employed in different comprehensive kinetic mechanisms. Additionally, the structure-activity relationship from Kwok and Atkinson (1995) was used to estimate these four rate constants, and the estimations from this group-additivity model are in good agreement with the measurements (within ~25%) at the present experimental conditions.
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DOI 10.1021/jp310256j
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Web of Science ID 000312519800005
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PubMedID 23194350
Shock tube studies of methyl butanoate pyrolysis with relevance to biodiesel
COMBUSTION AND FLAME
Farooq, A., Ren, W., Lam, K. Y., Davidson, D. F., Hanson, R. K., Westbrook, C. K.
2012
159 (11)
: 3235-3241
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DOI 10.1016/j.combustflame.2012.05.013
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Web of Science ID 000309622900001
Second-generation aerosol shock tube: an improved design
SHOCK WAVES
Haylett, D. R., Davidson, D. F., Hanson, R. K.
2012
22 (6)
: 483-493
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DOI 10.1007/s00193-012-0383-x
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Web of Science ID 000310326900001
Multi-species measurements in 1-butanol pyrolysis behind reflected shock waves
COMBUSTION AND FLAME
Stranic, I., Pyun, S. H., Davidson, D. F., Hanson, R. K.
2012
159 (11)
: 3242-3250
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DOI 10.1016/j.combustflame.2012.06.005
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Web of Science ID 000309622900002
Shock tube measurements of 3-pentanone pyrolysis and oxidation
COMBUSTION AND FLAME
Lam, K., Ren, W., Hong, Z., Davidson, D. F., Hanson, R. K.
2012
159 (11)
: 3251-3263
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DOI 10.1016/j.combustflame.2012.06.012
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Web of Science ID 000309622900003
Experimental Determination of the High-Temperature Rate Constant for the Reaction of OH with sec-Butanol
JOURNAL OF PHYSICAL CHEMISTRY A
Pang, G. A., Hanson, R. K., Golden, D. M., Bowman, C. T.
2012
116 (39)
: 9607-9613
Abstract
The overall rate constant for the reaction of OH with sec-butanol [CH(3)CH(OH)CH(2)CH(3)] was determined from measurements of the near-first-order OH decay in shock-heated mixtures of tert-butylhydroperoxide (as a fast source of OH) with sec-butanol in excess. Three kinetic mechanisms from the literature describing sec-butanol combustion were used to examine the sensitivity of the rate constant determination to secondary kinetics. The overall rate constant determined can be described by the Arrhenius expression 6.97 × 10(-11) exp(-1550/T[K]) cm(3) molecule(-1) s(-1), valid over the temperature range of 888-1178 K. Uncertainty bounds of ±30% were found to adequately account for the uncertainty in secondary kinetics. To our knowledge, the current data represent the first efforts toward an experimentally determined rate constant for the overall reaction of OH with sec-butanol at combustion-relevant temperatures. A rate constant predicted using a structure-activity relationship from the literature was compared to the current data and previous rate constant measurements for the title reaction at atmospheric-relevant temperatures. The structure-activity relationship was found to be unable to correctly predict the measured rate constant at all temperatures where experimental data exist. We found that the three-parameter fit of 4.95 × 10(-20)T(2.66) exp(+1123/T[K]) cm(3) molecule(-1) s(-1) better describes the overall rate constant for the reaction of OH with sec-butanol from 263 to 1178 K.
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DOI 10.1021/jp306977e
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Web of Science ID 000309375300002
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PubMedID 22946741
A shock tube study of the rate constants of HO2 and CH3 reactions
COMBUSTION AND FLAME
Hong, Z., Davidson, D. F., Lam, K., Hanson, R. K.
2012
159 (10)
: 3007-3013
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DOI 10.1016/j.combustflame.2012.04.009
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Web of Science ID 000308619100002
High-Temperature Measurements of the Reactions of OH with a Series of Ketones: Acetone, 2-Butanone, 3-Pentanone, and 2-Pentanone
JOURNAL OF PHYSICAL CHEMISTRY A
Lam, K., Davidson, D. F., Hanson, R. K.
2012
116 (23)
: 5549-5559
Abstract
The overall rate constants for the reactions of hydroxyl radicals (OH) with a series of ketones, namely, acetone (CH(3)COCH(3)), 2-butanone (C(2)H(5)COCH(3)), 3-pentanone (C(2)H(5)COC(2)H(5)), and 2-pentanone (C(3)H(7)COCH(3)), were studied behind reflected shock waves over the temperature range of 870-1360 K at pressures of 1-2 atm. OH radicals were produced by rapid thermal decomposition of the OH precursor tert-butyl hydroperoxide (TBHP) and were monitored by the narrow line width ring dye laser absorption of the well-characterized R(1)(5) line in the OH A-X (0, 0) band near 306.69 nm. The overall rate constants were inferred by comparing the measured OH time histories with the simulated profiles from the detailed mechanisms of Pichon et al. (2009) and Serinyel et al. (2010). These measured values can be expressed in Arrhenius form as k(CH3COCH3+OH) = 3.30 × 10(13) exp(-2437/T) cm(3) mol(-1) s(-1), k(C2H5COCH3+OH )= 6.35 × 10(13) exp(-2270/T) cm(3) mol(-1) s(-1), k(C2H5COC2H5+OH) = 9.29 × 10(13) exp(-2361/T) cm(3) mol(-1) s(-1), and k(C3H7COCH3+OH) = 7.06 × 10(13) exp(-2020/T) cm(3) mol(-1) s(-1). The measured rate constant for the acetone + OH reaction from the current study is consistent with three previous experimental studies from Bott and Cohen (1991), Vasudevan et al. (2005), and Srinivasan et al. (2007), within ±20%. Here, we also present the first direct high-temperature rate constant measurements of 2-butanone + OH, 3-pentanone + OH, and 2-pentanone + OH reactions. The measured values for the 2-butanone + OH reaction are in close accord with the theoretical calculation from Zhou et al. (2011), and the measured values for the 3-pentanone + OH reaction are in excellent agreement with the estimates (by analogy with the H-atom abstraction rate constants from alkanes) from Serinyel et al. Finally, the structure-activity relationship from Kwok and Atkinson (1995) was used to estimate these four rate constants, and the estimated values from this group-additivity model show good agreement with the measurements (within ~25%) at the present experimental conditions.
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DOI 10.1021/jp303853h
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Web of Science ID 000305355900004
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PubMedID 22607582
CO concentration and temperature sensor for combustion gases using quantum-cascade laser absorption near 4.7 mu m
APPLIED PHYSICS B-LASERS AND OPTICS
Ren, W., Farooq, A., Davidson, D. F., Hanson, R. K.
2012
107 (3)
: 849-860
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DOI 10.1007/s00340-012-5046-1
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Web of Science ID 000305226700046
IR laser absorption diagnostic for C2H4 in shock tube kinetics studies
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
Ren, W., Davidson, D. F., Hanson, R. K.
2012
44 (6)
: 423-432
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DOI 10.1002/kin.20599
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Web of Science ID 000303042600007
High-Temperature Rate Constant Determination for the Reaction of OH with iso-Butanol
JOURNAL OF PHYSICAL CHEMISTRY A
Pang, G. A., Hanson, R. K., Golden, D. M., Bowman, C. T.
2012
116 (19)
: 4720-4725
Abstract
This work presents the first direct experimental study of the rate constant for the reaction of OH with iso-butanol (2-methyl-1-propanol) at temperatures from 907 to 1147 K at near-atmospheric pressures. OH time-histories were measured behind reflected shock waves using a narrow-linewidth laser absorption method during reactions of dilute mixtures of tert-butylhydroperoxide (as a fast source of OH) with iso-butanol in excess. The title reaction's overall rate constant (OH + iso-butanol →(k(overall)) all products) minus the rate constant for the β-radical-producing channel (OH + iso-butanol →(k(β)) 1-hydroxy-2-methyl-prop-2-yl radical + H(2)O) was determined from the pseudo-first-order rate of OH decay. A two-parameter Arrhenius fit of the experimentally determined rate constant in the current temperature range yields the expression (k(overall) - k(β)) = 1.84 × 10(-10) exp(-2350/T[K]) cm(3) molecule(-1) s(-1). A recommendation for the overall rate constant, including k(β), is made, and comparisons of the results to rate constant recommendations from the literature are discussed.
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DOI 10.1021/jp302719j
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Web of Science ID 000304073200005
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PubMedID 22515280
Multispecies laser measurements of n-butanol pyrolysis behind reflected shock waves
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
Cook, R. D., Davidson, D. F., Hanson, R. K.
2012
44 (5)
: 303-311
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DOI 10.1002/kin.20713
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Web of Science ID 000302072400003
Rate Constant Measurements for the Overall Reaction of OH+1-Butanol -> Products from 900 to 1200 K
JOURNAL OF PHYSICAL CHEMISTRY A
Pang, G. A., Hanson, R. K., Golden, D. M., Bowman, C. T.
2012
116 (10)
: 2475-2483
Abstract
The rate constant for the overall reaction OH + 1-butanol → products was determined in the temperature range 900 to 1200 K from measurements of OH concentration time histories in reflected shock wave experiments of tert-butyl hydroperoxide (TBHP) as a fast source of OH radicals with 1-butanol in excess. Narrow-linewidth laser absorption was employed for the quantitative OH concentration measurement. A detailed kinetic mechanism was constructed that includes updated rate constants for 1-butanol and TBHP kinetics that influence the near-first-order OH concentration decay under the present experimental conditions, and this mechanism was used to facilitate the rate constant determination. The current work improves upon previous experimental studies of the title rate constant by utilizing a rigorously generated kinetic model to describe secondary reactions. Additionally, the current work extends the temperature range of experimental data in the literature for the title reaction under combustion-relevant conditions, presenting the first measurements from 900 to 1000 K. Over the entire temperature range studied, the overall rate constant can be expressed in Arrhenius form as 3.24 × 10(-10) exp(-2505/T [K]) cm(3) molecule(-1) s(-1). The influence of secondary reactions on the overall OH decay rate is discussed, and a detailed uncertainty analysis is performed yielding an overall uncertainty in the measured rate constant of ±20% at 1197 K and ±23% at 925 K. The results are compared with previous experimental and theoretical studies on the rate constant for the title reaction and reasonable agreement is found when the earlier experimental data were reinterpreted.
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DOI 10.1021/jp211885p
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Web of Science ID 000301509400010
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PubMedID 22352920
Determination of fluorescence and non-radiative de-excitation rates of excited 3-pentanone at low pressures
Spring Meeting of the German-Physical-Society
Cheung, B. H., Hanson, R. K.
SPRINGER.
2012
: 741–53
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DOI 10.1007/s00340-011-4817-4
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Web of Science ID 000300733900033
3-pentanone fluorescence yield measurements and modeling at elevated temperatures and pressures
Spring Meeting of the German-Physical-Society
Cheung, B. H., Hanson, R. K.
SPRINGER.
2012
: 755–68
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DOI 10.1007/s00340-012-4901-4
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Web of Science ID 000300733900034
Wavelength-modulation-spectroscopy for real-time, in situ NO detection in combustion gases with a 5.2 mu m quantum-cascade laser
APPLIED PHYSICS B-LASERS AND OPTICS
Chao, X., Jeffries, J. B., Hanson, R. K.
2012
106 (4)
: 987-997
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DOI 10.1007/s00340-011-4839-y
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Web of Science ID 000302946600032
In situ optical measurements of bacterial endospore breakdown in a shock tube
Spring Meeting of the German-Physical-Society
McCartt, A. D., Gates, S., Lappas, P., Jeffries, J. B., Hanson, R. K.
SPRINGER.
2012
: 769–74
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DOI 10.1007/s00340-011-4844-1
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Web of Science ID 000300733900035
Ignition delay times of low-vapor-pressure fuels measured using an aerosol shock tube
COMBUSTION AND FLAME
Haylett, D. R., Davidson, D. F., Hanson, R. K.
2012
159 (2)
: 552-561
View details for
DOI 10.1016/j.combustflame.2011.08.021
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Web of Science ID 000299068200009
Shock tube measurements of ignition delay times for the butanol isomers
COMBUSTION AND FLAME
Stranic, I., Chase, D. P., Harmon, J. T., Yang, S., Davidson, D. F., Hanson, R. K.
2012
159 (2)
: 516-527
View details for
DOI 10.1016/j.combustflame.2011.08.014
View details for
Web of Science ID 000299068200006
Boundary Layer Effects Behind Incident and Reflected Shock Waves in a Shock Tube
28th International Symposium on Shock Waves
Li, S., Ren, W., Davidson, D. F., Hanson, R. K.
2012
View details for
DOI 10.1007/978-3-642-25685-1_71
Measurement of Non-uniform Temperature Distributions Using Line-of-sight Absorption Spectroscopy
44th AIAA Aerospace Sciences Meeting and Exhibit
Liu, X., Jeffries, J. B., Hanson, R. K.
2012
View details for
DOI 10.2514/6.2006-834
Combustion characteristics of an inlet/supersonic combustor model
50th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
Gamba, M., Miller, V., Mungal, G. M., Hanson, R. K.
2012
View details for
DOI 10.2514/6.2012-612
Cinematographic PLIF imaging of Toluene using CW excitation
16th International Symposium on Applications of Laser Techniques to Fluid Mechanics
Gamba, M., Hanson, R. K.
2012
OH PLIF imaging of the reaction zone in combusting transverse jets in supersonic crossflow
16th International Symposium on Applications of Laser Techniques to Fluid Mechanics
Gamba, M., Mungal, M. G., Hanson, R. K.
2012
Toluene PLIF Thermometry in Supersonic Flows
42nd AIAA Fluid Dynamics Conference and Exhibit
Miller, V., Gamba, M., Mungal, M. G., Hanson, R. K.
2012
View details for
DOI 10.2514/6.2012-2828
Experimental Database for Development of a HiFiRE JP-7 Surrogate Fuel Mechanism
50th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
Davidson, D. F., Ren, W., Hanson, R. K.
2012
View details for
DOI 10.2514/6.2012-620
Hypervelocity Testing of a Dual-mode Scramjet
50th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition
Smayda, M. G., Vogel, P. D., Schultz, I. A., Hanson, R. K., Foelsche, R., Tsai, C. Y., Cresci, D., Goyne, C. P.
2012
View details for
DOI 10.2514/6.2012-481
A Second-Generation Aerosol Shock Tube and Its Use in Studying Ignition Delay Times of Large Biodiesel Surrogates
28th International Symposium on Shock Waves
Campbell, M. F., Davidson, D. F., Hanson, R. K.
2012
View details for
DOI 10.1007/978-3-642-25688-2_79
TDL Absorption Sensor for Temperature Measurements in High-Pressure and High-Temperature Gases
50th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
Goldenstein, C. S., Schultz, I. A., Jeffries, J. B., Hanson, R. K.
2012
View details for
DOI 10.2514/6.2012-1061
TDL Absorption Sensor for In Situ Determination of Combustion Progress in Scramjet Ground Testing
28th Aerodynamic Measurement Technology, Ground Testing, and Flight Testing Conference
Schultz, I. A., Goldenstein, C. S., Jeffries, J. B., Hanson, R. K., Rockwell Jr., R. D., Goyne, C. P.
2012
View details for
DOI 10.2514/6.2012-2654
OH PLIF of the Reaction Zone in Combusting Transverse Jets in Supersonic Crossflow
16th Int. Symp. On Applications of Laser Techniques to Fluid Mechanics
Gamba, M., Mungal, M. G., Hanson, R. K.
2012
Multi-species Measurements of n-Butanol Pyrolysis Behind Reflected Shock Waves
28th International Symposium on Shock Waves
Cook, R. D., Davidson, D. F., Hanson, R. K.
2012
: 451–56
View details for
DOI 10.1007/978-3-642-25688-2_69
Experimental Database for Development of a Hi Fire JP-7 Surrogate Fuel Mechanism
50th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
Davidson, D. F., Ren, W., Hanson, R. K.,
2012
View details for
DOI 10.2514/6.2012-620
Two-camera Dual-band Collection Toluene PLIF Thermometry in Supersonic Flows
16th International Symposium on Applications of Laser Techniques to Fluid Mechanics
Miller, V. A., Gamba, M., Mungal, M. G., Hanson, R. K.
2012
Development of laser absorption techniques for real-time, in-situ dual-species monitoring (NO/NH3, CO/O2) in combustion exhaust
Proceedings of the Combustion Institute
Chao, X., Jeffries, J. B., Hanson, R. K.
2012
: 3583–92
View details for
DOI 10.1016/j.proci.2012.05.024
Supersonic Mass-Flux Measurements via Tunable Diode Laser Absorption and Nonuniform Flow Modeling
49th AIAA Aerospace Sciences Meeting / New Horizons Forum and Aerospace Exposition
Chang, L. S., Strand, C. L., Jeffries, J. B., Hanson, R. K., Diskin, G. S., Gaffney, R. L., Capriotti, D. P.
AMER INST AERONAUT ASTRONAUT.
2011
: 2783–91
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DOI 10.2514/1.J051118
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Web of Science ID 000297968200017
H2O temperature sensor for low-pressure flames using tunable diode laser absorption near 2.9 mu m
MEASUREMENT SCIENCE & TECHNOLOGY
Li, S., Farooq, A., Hanson, R. K.
2011
22 (12)
View details for
DOI 10.1088/0957-0233/22/12/125301
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Web of Science ID 000298148200023
Near-wall imaging using toluene-based planar laser-induced fluorescence in shock tube flow
SHOCK WAVES
Yoo, J., Mitchell, D., Davidson, D. F., Hanson, R. K.
2011
21 (6)
: 523-532
View details for
DOI 10.1007/s00193-011-0338-7
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Web of Science ID 000296472000004
Broad-linewidth laser absorption measurements of oxygen between 211 and 235 nm at high temperatures
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Hong, Z., Lam, K., Davidson, D. F., Hanson, R. K.
2011
112 (17)
: 2698-2703
View details for
DOI 10.1016/j.jqsrt.2011.08.003
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Web of Science ID 000296165000005
Measurement of Water Vapor Levels for Investigating Vitiation Effects on Scramjet Performance
JOURNAL OF PROPULSION AND POWER
Rockwell, R. D., Goyne, C. P., Haw, W., McDaniel, J. C., Goldenstein, C. S., Schultz, I. A., Jeffries, J. B., Hanson, R. K.
2011
27 (6)
: 1315-1317
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DOI 10.2514/1.B34270
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Web of Science ID 000297141100019
Extension of Bacillus endospore gas dynamic heating studies to multiple species and test conditions
JOURNAL OF APPLIED MICROBIOLOGY
Gates, S. D., McCartt, A. D., Jeffries, J. B., Hanson, R. K., Hokama, L. A., Mortelmans, K. E.
2011
111 (4)
: 925-931
Abstract
Shock wave-induced damage to a variety of Bacillus endospore species is studied for a wide range of postshock temperatures and test times in oxidative and non-oxidative gas environments.Bacillus atrophaeus and Bacillus subtilis endospores are nebulized into an aqueous aerosol, loaded into the Stanford aerosol shock tube (SAST) and subjected to shock waves of controlled strength. Endospores experience uniform test temperatures between 500 and 1000 K and pressures ranging from 2 to 7 atm, for either a short test time (∼2·5 ms) or a relatively long test time (∼45 ms). During this process, the bioaerosol is observed using in situ laser absorption and scattering diagnostics. Additionally, shock-treated samples are extracted for ex situ analysis including viability plating and flow cytometry. For short test times, results are consistent with previous studies; all endospore species begin to lose the ability to form colonies when shock-heated to temperatures above 500 K, while significant breakdown in morphology is observed for postshock temperatures above 700 K. Oxidative bath gases did not affect viability losses or morphological breakdown rates. Experiments with extended postshock test time showed increased viability loss with minimal morphological damage for shocks between 600 and 700 K.Genetic differences between B. subtilis and B. atrophaeus endospores do not confer noticeable gains in resistance to shock heating. Oxidative environments do not exacerbate shock-induced damage to endospores. Extended test time experiments reinforce our hypothesis that a temperature/time-dependent inactivation mechanism that does not involve morphological breakdown exists at low-to-moderate postshock temperatures.The methodology and experiments described in this paper extend the study of the interactions of endospores with shock/blast waves to new species and environmental conditions.
View details for
DOI 10.1111/j.1365-2672.2011.05090.x
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Web of Science ID 000295429200014
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PubMedID 21707883
Decomposition Measurements of RP-1, RP-2, JP-7, n-Dodecane, and Tetrahydroquinoline in Shock Tubes
44th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
MacDonald, M. E., Davidson, D. F., Hanson, R. K.
AMER INST AERONAUT ASTRONAUT.
2011
: 981–89
View details for
DOI 10.2514/1.B34204
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Web of Science ID 000295705700007
A comparative study of the oxidation characteristics of cyclohexane, methylcyclohexane, and n-butylcyclohexane at high temperatures
COMBUSTION AND FLAME
Hong, Z., Lam, K., Davidson, D. F., Hanson, R. K.
2011
158 (8)
: 1456-1468
View details for
DOI 10.1016/j.combustflame.2010.12.019
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Web of Science ID 000292074900003
An improved H-2/O-2 mechanism based on recent shock tube/laser absorption measurements
COMBUSTION AND FLAME
Hong, Z., Davidson, D. F., Hanson, R. K.
2011
158 (4)
: 633-644
View details for
DOI 10.1016/j.combustflame.2010.10.002
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Web of Science ID 000288291000005
Shock tube measurements of species time-histories in monomethyl hydrazine pyrolysis
COMBUSTION AND FLAME
Cook, R. D., Pyun, S. H., Cho, J., Davidson, D. F., Hanson, R. K.
2011
158 (4)
: 790-795
View details for
DOI 10.1016/j.combustflame.2011.01.001
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Web of Science ID 000288291000016
Reactions of OH with Butene Isomers: Measurements of the Overall Rates and a Theoretical Study
JOURNAL OF PHYSICAL CHEMISTRY A
Vasu, S. S., Lam K Huynh, K. H., Davidson, D. F., Hanson, R. K., Golden, D. M.
2011
115 (12)
: 2549-2556
View details for
DOI 10.1021/jp112294h
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Web of Science ID 000288644600013
Shock Tube Study of Syngas Ignition in Rich CO2 Mixtures and Determination of the Rate of H + O-2 + CO2 -> HO2 + CO2
ENERGY & FUELS
Vasu, S. S., Davidson, D. F., Hanson, R. K.
2011
25 (3)
: 990-997
View details for
DOI 10.1021/ef1015928
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Web of Science ID 000289613300016
Mid-infrared laser-absorption diagnostic for vapor-phase fuel mole fraction and liquid fuel film thickness
APPLIED PHYSICS B-LASERS AND OPTICS
Porter, J. M., Jeffries, J. B., Hanson, R. K.
2011
102 (2)
: 345-355
View details for
DOI 10.1007/s00340-010-3942-9
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Web of Science ID 000287200800009
Interference-free mid-IR laser absorption detection of methane
MEASUREMENT SCIENCE & TECHNOLOGY
Pyun, S. H., Cho, J., Davidson, D. F., Hanson, R. K.
2011
22 (2)
View details for
DOI 10.1088/0957-0233/22/2/025303
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Web of Science ID 000286311200031
A new shock tube study of the H + O-2 -> OH plus O reaction rate using tunable diode laser absorption of H2O near 2.5 mu m
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Hong, Z., Davidson, D. F., Barbour, E. A., Hanson, R. K.
2011
33
: 309-316
View details for
DOI 10.1016/j.proci.2010.05.101
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Web of Science ID 000285780200025
Fuel and Ethylene Measurements during n-Dodecane, Methylcyclohexane, and iso-Cetane Decomposition in Shock Tubes
47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
MacDonald, M. E., Ren, W., Davidson, D. F., Hanson, R. K.
2011
View details for
DOI 10.2514/6.2011-5854
Tunable Diode Laser Absorption Sensor for Measurements of Temperature and Water Concentration in Supersonic Flows
49th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
Goldenstein, C. S., Schultz, I. A., Jeffries, J. B., Hanson, R. K.
2011
View details for
DOI 10.2514/6.2011-1094
Supersonic Mass Flux Measurements via Tunable Diode Laser Absorption and Non-Uniform Flow Modeling
49th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
Chang, L. S., Strand, C. L., Jeffries, J. B., Hanson, R. K., Diskin, G. S., Gaffney, R. L., Capriotti, D. P.
2011
View details for
DOI 10.2514/6.2011-1093
Toluene Laser-induced Fluorescence Imaging of Compressible Flows in an Expansion Tube
64th Annual Meeting of the APS Division of Fluid Dynamics
Miller, V. A., Gamba, M., Mungal, M. G., Hanson, R. K., Mohri, K., Schulz, C.
2011
Thermometry and Velocimetry in Supersonic Flows via Scanned Wavelength-Modulation Absorption Spectroscopy
47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
Strand, C. L., Hanson, R. K.
2011
View details for
DOI 10.2514/6.2011-5600
RP-Fuel and Surrogate Pyrolysis: Multi-species Time-history Measurements using Shock Tube/Laser Absorption
JANNAF Meeting
Davidson, D. F., MacDonald, M. E., Hanson, R. K.
2011
MMH Pyrolysis and Oxidation: Species Time-History Measurements behind Reflected Shock Waves
23rd ICDERS
Cook, R. D., Davidson, D. F., Pyun, S. H., Hanson, R. K.
2011
Development of a Model Scramjet Combustor
49th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
Miller, V. A., Gamba, M., Mungal, M. G., Hanson, R. K.
2011
View details for
DOI 10.2514/6.2011-320
Temperature Measurements in an Entrained Flow, Slagging, Coal Gasifier using Laser Absorption of Water Vapor
28th Annual International Pittsburgh Coal Conference
Sun, K., Sur, R., Chao, X., Jeffries, J. B., Hanson, R. K., Pummill, R. J., Wagner, D. A., Whitty, K. J., Steele, R. C.
2011
Temperature Time-history Measurements in a Shock Tube using Diode Laser Absorption of CO2 near 2.7 μm
23rd ICDERS
Ren, W., Li, S., Davidson, D. F., Hanson, R. K.
2011
Shock Tube Measurements of Ethylene Concentration Time-histories during Ethylene, n-Heptane and methylcyclohexane Pyrolysis
7th U.S. National Combustion Meeting
Ren, W., Davidson, D. F., Hanson, R. K.
2011
Ignition and Near-Wall Burning in Transverse Hydrogen Jets in Supersonic Crossflow
49th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
Gamba, M., Mungal, M. G., Hanson, R. K.
2011
View details for
DOI 10.2514/6.2011-319
Shock Tube Measurements of Ignition Delay Times and OH and H2O Species Time-histories in 3-pentanone/O2 /Ar Mixtures
7th International Conference on Chemical Kinetics
Lam, K. Y., Hong, Z., Durrstein, S. W., Davidson, D. F., Hanson, R. K., Schulz, C.
2011
Ignition and Flame Structure in a Compact Inlet/Scramjet Combustor
17th AIAA International Space Planes and Hypersonic Systems and Technologies Conference
Miller, V. A., Mungal, M. G., Hanson, R. K.
2011
View details for
DOI 10.2514/6.2011-2366
High-temperature Reactions of OH with Linear Alkenes up to C4
7th International Conference on Chemical Kinetics
Harper, M. R., Green, W. H., Van Geem, K. M., Weber, B. W., Sung, C., Stranic, I., Davidson, D. F., Hanson, R. K.
2011
Combustion of the Butanol Isomers: Reaction Pathways at Elevated Pressures from Low to High Temperatures
7th International Conference on Chemical Kinetics
Harper, M. R., Green, W. H., Van Geem, K. M., Weber, B. W., Hanson, R. K.
2011
Shock Tube/Laser Absorption Measurements of JP-8 Ignition Delay Times and Multi-species Time-histories
JANNAF Meeting
Davidson, D. F., Li, S., Lam, K. Y., Stranic, I., Hanson, R. K.
2011
Multi-Species Measurements of n-Butanol Pyrolysis behind Reflected Shock Waves
7th International Conference on Chemical Kinetics
Cook, R. D., Sur, R., Stranic, I., Davidson, D. F., Hanson, R. K., Harper, M. R., Green, W. H.
2011
Tunable Diode Laser Absorption Diagnostic for Scramjet Combustion Flows
7th U.S. National Combustion Meeting
Schultz, I. A., Goldenstein, C. S., Jeffries, J. B., Hanson, R. K.
2011
Shock Tube/Laser Absorption Database for the Oxidation of Hi Fire JP-7 Surrogate Fuel
JANNAF Meeting
Davidson, D. F., Hanson, R. K., Ren, W.
2011
Ignition and Flame Structure in a Compact Inlet/Scramjet Combustor Model
17th AIAA International Space Planes and Hypersonic Systems and Technologies Conference
Gamba, M., Miller, V. A., Mungal, M. G., Hanson, R. K.
2011
View details for
DOI 10.2514/6.2011-2366
Shock tube/laser absorption measurements of ethylene time-histories during ethylene and n-heptane pyrolysis
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Pilla, G. L., Davidson, D. F., Hanson, R. K.
2011
33
: 333-340
View details for
DOI 10.1016/j.proci.2010.06.146
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Web of Science ID 000285780200028
Applications of quantitative laser sensors to kinetics, propulsion and practical energy systems
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Hanson, R. K.
2011
33
: 1-40
View details for
DOI 10.1016/j.proci.2010.09.007
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Web of Science ID 000285780200001
Response of Bacillus thuringiensis Al Hakam Endospores to Gas Dynamic Heating in a Shock Tube
ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS
McCartt, A. D., Gates, S. D., Jeffries, J. B., Hanson, R. K., Joubert, L. M., Buhr, T. L.
2011
225 (11-12)
: 1367-1377
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DOI 10.1524/zpch.2011.0183
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Web of Science ID 000299393700012
Multi-species time-history measurements during n-dodecane oxidation behind reflected shock waves
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Davidson, D. F., Hong, Z., Pilla, G. L., Farooq, A., Cook, R. D., Hanson, R. K.
2011
33
: 151-157
View details for
DOI 10.1016/j.proci.2010.05.104
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Web of Science ID 000285780200006
Shock tube ignition delay time measurements in propane/O-2/argon mixtures at near-constant-volume conditions
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Lam, K., Hong, Z., Davidson, D. F., Hanson, R. K.
2011
33
: 251-258
View details for
DOI 10.1016/j.proci.2010.06.131
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Web of Science ID 000285780200018
OH and C2H4 species time-histories during hexadecane and diesel ignition behind reflected shock waves
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Haylett, D. R., Cook, R. D., Davidson, D. F., Hanson, R. K.
2011
33
: 167-173
View details for
DOI 10.1016/j.proci.2010.05.053
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Web of Science ID 000285780200008
High-Temperature Measurements of the Rate Constants for Reactions of OH with a Series of Large Normal Alkanes: n-Pentane, n-Heptane, and n-Nonane
ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS
Pang, G. A., Hanson, R. K., Golden, D. M., Bowman, C. T.
2011
225 (11-12)
: 1157-1178
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DOI 10.1524/zpch.2011.0156
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Web of Science ID 000299393700002
In situ absorption sensor for NO in combustion gases with a 5.2 mu m quantum-cascade laser
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Chao, X., Jeffries, J. B., Hanson, R. K.
2011
33
: 725-733
View details for
DOI 10.1016/j.proci.2010.05.014
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Web of Science ID 000285780200075
Temperature and pressure imaging using infrared planar laser-induced fluorescence
APPLIED OPTICS
Rothamer, D. A., Hanson, R. K.
2010
49 (33)
: 6436-6447
Abstract
A new diagnostic technique for measurements of temperature and pressure distribution in gaseous flows has been developed. The technique, based on infrared planar laser-induced fluorescence (IR-PLIF), is applicable to all IR-active species. A simple two-line excitation approach is used for measurements of temperature, while pressure measurements utilize online excitation on one rotational line and offline excitation on another. A demonstration of the technique in a supersonic underexpanded jet of 30% CO2 and 70% N2 was performed, and the results are, to the best of our knowledge, the first demonstration of temperature and pressure imaging using IR-PLIF. The developed diagnostic shows potential for single-shot two-dimensional measurements of temperature and pressure in gaseous flows.
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Web of Science ID 000284396500010
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PubMedID 21102669
Shock Tube/Laser Absorption Measurements of the Reaction Rates of OH with Ethylene and Propene
JOURNAL OF PHYSICAL CHEMISTRY A
Vasu, S. S., Hong, Z., Davidson, D. F., Hanson, R. K., Golden, D. M.
2010
114 (43)
: 11529-11537
Abstract
Reaction rates of hydroxyl (OH) radicals with ethylene (C₂H₄) and propene (C₃H₆) were studied behind reflected shock waves. OH + ethylene → products (rxn 1) rate measurements were conducted in the temperature range 973-1438 K, for pressures from 2 to 10 atm, and for initial concentrations of ethylene of 500, 751, and 1000 ppm. OH + propene → products (rxn 2) rate measurements spanned temperatures of 890-1366 K, pressures near 2.3 atm, and initial propene concentrations near 300 ppm. OH radicals were produced by shock-heating tert-butyl hydroperoxide, (CH₃)₃-CO-OH, and monitored by laser absorption near 306.7 nm. Rate constants for the reactions of OH with ethylene and propene were extracted by matching modeled and measured OH concentration time-histories in the reflected shock region. Current data are in excellent agreement with previous studies and extend the temperature range of OH + propene data. Transition state theory calculations using recent ab initio results give excellent agreement with our measurements and other data outside our temperature range. Fits (in units of cm³/mol/s) to the abstraction channels of OH + ethylene and OH + propene are k₁ = 2.23 × 10⁴ (T)(2.745) exp(-1115 K/T) for 600-2000 K and k₂ = 1.94 × 10⁶ (T)(2.229) exp(-540 K/T) for 700-1500 K, respectively. A rate constant determination for the reaction TBHP → products (rxn 3) was also obtained in the range 745-1014 K using OH data from behind both incident and reflected shock waves. These high-temperature measurements were fit with previous low-temperature data, and the following rate expression (0.6-2.6 atm), applicable over the temperature range 400-1050 K, was obtained: k₃ (1/s) = 8.13 × 10⁻¹² (T)(7.83) exp(-14598 K/T).
View details for
DOI 10.1021/jp106049s
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Web of Science ID 000283471900020
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PubMedID 20923208
Bacillus endospore resistance to gas dynamic heating
JOURNAL OF APPLIED MICROBIOLOGY
Gates, S. D., McCartt, A. D., Lappas, P., Jeffries, J. B., Hanson, R. K., Hokama, L. A., Mortelmans, K. E.
2010
109 (5)
: 1591-1598
Abstract
To develop a novel laboratory procedure for the study of shock wave-induced damage to Bacillus endospores.Bacillus atrophaeus endospores are nebulized into an aerosol, loaded into the stanford aerosol shock tube and subjected to shock waves of controlled strength. Endospores experience uniform test temperatures between 500 and 1000K and pressures ranging from 2 to 7atm, for a relatively short time (2-3ms). During this process, the bioaerosol is observed using in situ laser absorption and scattering diagnostics. Additionally, shock-treated samples are extracted for ex situ analysis including viability plating, flow cytometry and SEM imaging. Measurements indicate that endospores lose the ability to form colonies when heated to test temperatures above 500K while significant breakdown in morphology is observed at test temperatures above 750K.These results demonstrate the disruption of essential biochemical pathways or biomolecules prior to the onset of significant endospore morphological deterioration.This novel laboratory approach to study the interaction of endospores with shock waves provides an experimental means to investigate the mechanisms of endospore resistance to rapid heating. In addition, this methodology allows for the direct simulation of a blast wave-bioaerosol interaction in an atmospheric environment.
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DOI 10.1111/j.1365-2672.2010.04785.x
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Web of Science ID 000282813800010
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PubMedID 20618888
Mass Flux Sensing via Tunable Diode Laser Absorption of Water Vapor
48th AIAA Aerospace Sciences Meeting and Exhibit Including the New Horizons Forum and Aerospace Exposition
Chang, L. S., Jeffries, J. B., Hanson, R. K.
AMER INST AERONAUTICS ASTRONAUTICS.
2010
: 2687–93
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DOI 10.2514/1.J050544
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Web of Science ID 000284252300022
Multi-species time-history measurements during n-heptane oxidation behind reflected shock waves
COMBUSTION AND FLAME
Davidson, D. F., Hong, Z., Pilla, G. L., Farooq, A., Cook, R. D., Hanson, R. K.
2010
157 (10)
: 1899-1905
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DOI 10.1016/j.combustflame.2010.01.004
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Web of Science ID 000281337800009
Temperature sensing in shock-heated evaporating aerosol using wavelength-modulation absorption spectroscopy of CO2 near 2.7 mu m
MEASUREMENT SCIENCE & TECHNOLOGY
Ren, W., Jeffries, J. B., Hanson, R. K.
2010
21 (10)
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DOI 10.1088/0957-0233/21/10/105603
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Web of Science ID 000281787100044
Planar laser-induced fluorescence imaging in shock tube flows
EXPERIMENTS IN FLUIDS
Yoo, J., Mitchell, D., Davidson, D. F., Hanson, R. K.
2010
49 (4)
: 751-759
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DOI 10.1007/s00348-010-0876-2
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Web of Science ID 000282215500002
Measurements of the reaction of OH with n-butanol at high-temperatures
CHEMICAL PHYSICS LETTERS
Vasu, S. S., Davidson, D. F., Hanson, R. K., Golden, D. M.
2010
497 (1-3)
: 26-29
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DOI 10.1016/j.cplett.2010.08.001
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Web of Science ID 000281526700006
High-Temperature Measurements and a Theoretical Study of the Reaction of OH with 1,3-Butadiene
JOURNAL OF PHYSICAL CHEMISTRY A
Vasu, S. S., Zador, J., Davidson, D. F., Hanson, R. K., Golden, D. M., Miller, J. A.
2010
114 (32)
: 8312-8318
Abstract
The reaction of hydroxyl (OH) radicals with 1,3-butadiene (C(4)H(6)) was studied behind reflected shock waves over the temperature range 1011-1406 K and at pressures near 2.2 atm. OH radicals were produced by shock-heating tert-butyl hydroperoxide, (CH(3))(3)-CO-OH, and were monitored by narrow line width ring dye laser absorption of the well-characterized R(1)(5) line of the OH A-X (0,0) band near 306.7 nm. OH time histories were modeled using a comprehensive 1,3-butadiene oxidation mechanism, and rate constants for the reaction of OH with 1,3-butadiene were extracted by matching modeled and measured OH concentration time histories. Detailed error analyses yielded an uncertainty estimate of +/-13% at 1200 K for the rate coefficient of the target reaction. The current data extends the temperature range of the only previous high-temperature study for this reaction. The rate coefficient and the branching fractions for the H-abstraction channels of the target reaction were also calculated over the temperature range 250-2500 K using variational transition-state theory based on QCISD(T)/cc-pVinfinityZ//B3LYP/6-311++G(d,p) quantum chemistry. The calculations are in good agreement with the experimental results above 1200 K.
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DOI 10.1021/jp104880u
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Web of Science ID 000280727200013
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PubMedID 20701338
Shock-Tube Experiments and Kinetic Modeling of Toluene Ignition
JOURNAL OF PROPULSION AND POWER
Vasu, S. S., Davidson, D. F., Hanson, R. K.
2010
26 (4)
: 776-783
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DOI 10.2514/1.46637
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Web of Science ID 000280255300017
A Shock Tube Study of OH + H2O2 -> H2O + HO2 and H2O2 + M -> 2OH+M using Laser Absorption of H2O and OH
JOURNAL OF PHYSICAL CHEMISTRY A
Hong, Z., Cook, R. D., Davidson, D. F., Hanson, R. K.
2010
114 (18)
: 5718-5727
Abstract
The rate constants of the reactions: (1) H2O2+M-->2OH+M, (2) OH+H2O2-->H2O+HO2 were measured in shock-heated H(2)O(2)/Ar mixtures using laser absorption diagnostics for H(2)O and OH. Time-histories of H(2)O were monitored using tunable diode laser absorption at 2550.96 nm, and time-histories of OH were achieved using ring dye laser absorption at 306 nm. Initial H(2)O(2) concentrations were also determined utilizing the H(2)O diagnostic. On the basis of simultaneous time-history measurements of OH and H(2)O, k(2) was found to be 4.6 x 10(13) exp(-2630 K/T) [cm(3) mol(-1) s(-1)] over the temperature range 1020-1460 K at 1.8 atm; additional measurements of k(2) near 1 atm showed no significant pressure dependence. Similarly, k(1) was found to be 9.5 x 10(15) exp(-21 250 K/T) [cm(3) mol(-1) s(-1)] over the same temperature and pressure range.
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DOI 10.1021/jp100204z
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Web of Science ID 000277280400013
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PubMedID 20397668
Experimental Study of the Rate of OH + HO2 -> H2O + O-2 at High Temperatures Using the Reverse Reaction
JOURNAL OF PHYSICAL CHEMISTRY A
Hong, Z., Vasu, S. S., Davidson, D. F., Hanson, R. K.
2010
114 (17)
: 5520-5525
Abstract
The rate constant of the reaction OH + HO(2) --> H(2)O + O(2) (1) can be inferred at high temperatures from measurements of the rate of its reverse reaction H(2)O + O(2) --> OH + HO(2) (-1). In this work, we used laser absorption of both H(2)O and OH to study the reverse reaction in shock-heated H(2)O/O(2)/Ar mixtures over the temperature range 1600-2200 K. Initial H(2)O concentrations were determined using tunable diode laser absorption near 2.5 microm, and OH concentration time-histories were measured using UV ring dye laser absorption near 306.7 nm. Detailed kinetic analysis of the OH time-history profiles yielded a value for the rate constant k(1) of (3.3 +/- 0.9) x 10(13) [cm(3) mol(-1) s(-1)] between 1600 and 2200 K. The results of this study agree well with those reported by Srinivasan et al. (Srinivasan, N.K.; Su, M.-C.; Sutherland, J.W.; Michael, J.V.; Ruscic, B. J. Phys. Chem. A 2006, 110, 6602-6607) in the temperature regime between 1200 and 1700 K. The combination of the two studies suggests only a weak temperature dependence of k(1) above 1200 K. Data from the current study and that of Keyser (Keyser, L.F. J. Phys. Chem. 1988, 92, 1193-1200) at lower temperatures can be described by the k(1) expression proposed by Baulch et al. (Baulch, D.L.; Cobos, C.J.; Cox, R.A.; Esser, C.; Frank, P.; Just, Th.; Kerr, J.A.; Pilling, M.J.; Troe, J.; Walker, R.W.; Warnatz, J. J. Phys. Chem. Ref. Data 1992, 21, 411), k(1) = 2.89 x 10(13) exp(252/T) [cm(3) mol(-1) s(-1)]. However, it should be noted that some previous studies suggest a k(1) minimum around 1250 K (Hippler, H.; Neunaber, H.; Troe, J. J. Chem. Phys. 1995, 103, 3510-3516) or 1000 K (Kappel, C.; Luther, K.; Troe, J. Phys. Chem. Chem. Phys. 2002, 4, 4392-4398).
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DOI 10.1021/jp100739t
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Web of Science ID 000277053400012
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PubMedID 20392098
High-pressure measurements of CO2 absorption near 2.7 mu m: Line mixing and finite duration collision effects
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Farooq, A., Jeffries, J. B., Hanson, R. K.
2010
111 (7-8)
: 949-960
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DOI 10.1016/j.jqsrt.2010.01.001
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Web of Science ID 000276124500001
Optimization of a tracer-based PLIF diagnostic for simultaneous imaging of EGR and temperature in IC engines
APPLIED PHYSICS B-LASERS AND OPTICS
Rothamer, D. A., Snyder, J. A., Hanson, R. K., Steeper, R. R.
2010
99 (1-2)
: 371-384
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DOI 10.1007/s00340-009-3815-2
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Web of Science ID 000275892200052
Ignition Delay Time Measurements of Normal Alkanes and Simple Oxygenates
JOURNAL OF PROPULSION AND POWER
Davidson, D. F., Ranganath, S. C., Lam, K., Liaw, M., Hong, Z., Hanson, R. K.
2010
26 (2)
: 280-287
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DOI 10.2514/1.44034
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Web of Science ID 000276712400009
Chemical Nonequilibrium, Heat Transfer, and Friction in a Detonation Tube with Nozzles
JOURNAL OF PROPULSION AND POWER
Barbour, E. A., Hanson, R. K.
2010
26 (2)
: 230-239
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DOI 10.2514/1.44814
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Web of Science ID 000276712400004
CW laser-induced fluorescence of toluene for time-resolved imaging of gaseous flows
APPLIED PHYSICS B-LASERS AND OPTICS
Cheung, B. H., Hanson, R. K.
2010
98 (2-3)
: 581-591
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DOI 10.1007/s00340-009-3785-4
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Web of Science ID 000273307300052
The Influence of Wall Heat Transfer, Friction, and Condensation on Detonation Tube Performance
COMBUSTION SCIENCE AND TECHNOLOGY
Owens, Z. C., Hanson, R. K.
2010
182 (8)
: 1104-1140
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DOI 10.1080/00102200903485202
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Web of Science ID 000280386500008
Mass Flux Sensing via Tunable Diode Laser Absorption of Water Vapor
48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition
Chang, L. S., Jeffries, J. B., Hanson, R. K.
2010
View details for
DOI 10.2514/6.2010-303
Mulit-Species Measurements Behind Reflected Shock Waves in Hydrocarbons Using Laser Absorption
48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition
Davidson, D. F., Pilla, G., Farooq, A., Cook, R., Hong, Z., Hanson, R. K.
2010
View details for
DOI 10.2514/6.2010-198
Crank-angle-resolved Measurements of Air-Fuel Ratio, Temperature and Liquid Fuel Droplet Scattering in a Direct-injection Gasoline Engine
SAE Powertrains Fuels & Lubricants Meeting
Sholes, K. R., Shouji, K., Chaya, T., Jeffries, J. B., Porter, J. M., Pyun, S. P., Hanson, R. K.,
2010
View details for
DOI 10.4271/2010-01-2246
A Second-Generation Aerosol Shock Tube for Combustion Research
48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition
Haylett, D. R., Davidson, D. F., Hanson, R. K.
2010
View details for
DOI 10.2514/6.2010-196
Tunable Diode Laser Absorption Sensor of Temperature and Water Concentration in Supersonic Flows
49th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
Goldenstein, C. S., Schultz, I. A., Jeffries, J. B., Hanson, R. K.
2010
View details for
DOI 10.2514/6.2011-1094
PLIF Measurements of Thermal Stratification in a HCCI Engine under Fired Operation
SAE World Congress
Snyder, J. A., Hanson, R. K., Dronniou, N., Dec, J. E.
2010
: 1669–88
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DOI 10.4271/2011-01-1291
Shock Tube Laser Absorption Studies of the Decomposition of Fuel Surrogates
JANNAF Joint Propulsion Meeting
Davidson, D. F., Pilla, G., MacDonald, M. E., Hanson, R. K.
2010
Laser Diagnostic Techniques for Shock Tube Studies of Combustion Chemistry
Laser Applications to Chemical, Security and Environmental Analysis
Hanson, R. K.
2010
View details for
DOI 10.1364/LACSEA.2010.LWB3
Determination of Cycle Temperatures and Residual Gas Fraction for HCCI Negative Valve Overlap Operation
SAE International Journal of Engines
Fitzgerald, R. P., Steeper, R., Snyder, J., Hanson, R. K., Hessel, R.
2010
3 (1)
: 124-141
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DOI 10.4271/2010-01-0343
Multi-Species Measurements Behind Reflected Shock Waves in Hydrocarbons using Laser Absorption
48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition
Davidson, D. F., Pilla, G. L., Farooq, A., Cook, R. D., Hong, Z., Hanson, R. K.
2010
View details for
DOI 10.2514/6.2010-198
An In-cylinder Laser Absorption Sensor for Crank-angle-resolved Measurements of Gasoline , Concentration and Temperature
SAE Powertrains, Fuels and Lubricants
Jeffries, J. B., Porter, J. M., Pyun, S. H., Hanson, R. K., Sholes, K. R., Shouji, K., Chaya, T.
2010
: 373–82
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DOI 10.4271/2010-01-2251
Measurements of CO2 concentration and temperature at high pressures using 1f-normalized wavelength modulation spectroscopy with second harmonic detection near 2.7 mu m
APPLIED OPTICS
Farooq, A., Jeffries, J. B., Hanson, R. K.
2009
48 (35)
: 6740-6753
Abstract
Tunable diode lasers (TDL) near 2.7 mum are used to measure high-resolution direct absorption and wavelength modulation with second harmonic (WMS-2f) spectra at high pressures for two CO(2) transitions near 3633.08 and 3645.20 cm(-1), belonging to the nu(1)+ nu(3) vibrational band. Important factors influencing the design of a high-pressure TDL sensor and the variation of WMS-2f line shape with changes in pressure and laser parameters are discussed. Measurements of line strength and line broadening parameters are carried out for the 3645.20 cm(-1) transition in an atmospheric-pressure, high-temperature cell. A room-temperature high-pressure cell is then used to measure the pressure shift for both CO(2) transitions. Deviation of the direct absorption and wavelength modulation spectroscopy (WMS) spectra from the Lorentzian profile is studied in a high-density (9.2 amagats) CO(2)-Ar mixture. The WMS spectra are shown to be negligibly affected by non-Lorentzian effects up to 10 atm and room temperature, in contrast with direct absorption. Measurements of CO(2) concentration and temperature are carried out in nonreactive shock-tube experiments (P approximately 8-12 atm, T~800-1200 K) to validate the accuracy and precision of wavelength-modulation-spectroscopy-based sensing. CO(2) time histories are then measured in heptane ignition experiments and compared with reaction kinetics mechanisms to demonstrate the use of this sensor in high-pressure combustion systems.
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Web of Science ID 000272609700017
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PubMedID 20011014
Mid-infrared absorption measurements of liquid hydrocarbon fuels near 3.4 mu m
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Porter, J. M., Jeffries, J. B., Hanson, R. K.
2009
110 (18)
: 2135-2147
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DOI 10.1016/j.jqsrt.2009.05.017
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Web of Science ID 000270629400014
Two-color-absorption sensor for time-resolved measurements of gasoline concentration and temperature
APPLIED OPTICS
Pyun, S. H., Porter, J. M., Jeffries, J. B., Hanson, R. K., Montoya, J. C., Allen, M. G., Sholes, K. R.
2009
48 (33)
: 6492-6500
Abstract
A midinfrared absorption sensor for crank-angle-resolved in-cylinder measurements of gasoline concentration and gas temperature for spark-ignition internal-combustion engines is reported, and design considerations and validation testing in the controlled environments of a heated cell and shock-heated gases are discussed. Mid-IR laser light was tuned to transitions in the strong absorption bands associated with C-H stretching vibration near 3.4 microm, and time-resolved fuel vapor concentration and gas temperature were determined simultaneously from the absorption at two different wavelengths. These two infrared laser wavelengths were simultaneously produced by difference-frequency generation, which combines a near-IR signal laser with two near-IR pump lasers in a periodically poled lithium niobate crystal. Injection current modulation of the pump lasers produced intensity modulation of the mid-IR, which allowed the transmitted signals from the two laser wavelengths to be detected on a single detector and separated by frequency demultiplexing. Injection current modulation produced a wavelength modulation synchronous with the intensity modulation for each of the laser wavelengths, and accurate measurement of the gasoline absorption signal required the effects of wavelength modulation to be considered. Validation experiments were conducted for a single-component hydrocarbon fuel (2,2,4-trimethyl-pentane, commonly known as iso-octane) and a gasoline blend in a heated static cell (300 < or = T < or = 600 K) and behind planar shock waves (600 < T < 1100 K) in a shock tube. With a bandwidth of 10 kHz, the measured fuel concentrations agreed within 5% RMS and the measured temperature agreed within 3% RMS to the known values. The 10 kHz bandwidth is sufficient to resolve 1 crank-angle degree at 1600 RPM.
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Web of Science ID 000272030800014
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PubMedID 19935971
Hydrogen Peroxide Decomposition Rate: A Shock Tube Study Using Tunable Laser Absorption of H2O near 2.5 mu m
JOURNAL OF PHYSICAL CHEMISTRY A
Hong, Z., Farooq, A., Barbour, E. A., Davidson, D. F., Hanson, R. K.
2009
113 (46)
: 12919-12925
Abstract
The thermal decomposition of hydrogen peroxide was measured behind reflected shock waves in hydrogen peroxide/inert gas mixtures using a sensitive laser diagnostic for water vapor. In these mixtures, the formation rate of water is predominantly controlled by the decomposition rate of hydrogen peroxide. Rate determinations were made over a temperature range of 1000-1200 K and a pressure range of 0.9-3.2 atm for both argon and nitrogen carrier gases. Good detection sensitivity for water was achieved using tunable diode laser absorption of water at 2550.96 nm within its v(3) fundamental band. Hydrogen peroxide decomposition rates were found to be independent of pressure at 0.9 and 1.7 atm and showed only slight influence of pressure at 3.2 atm. The best fit of the current data to the low-pressure-limit rate for H(2)O(2) dissociation in argon bath gas is k(1,0) = 10(15.97+/-0.10) exp(-21 220 +/- 250 K/T) [cm(3) mol(-1) s(-1)] (1000-1200 K). Experiments conducted in a nitrogen bath gas show a relative collision efficiency of argon to nitrogen of 0.67.
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DOI 10.1021/jp907219f
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Web of Science ID 000271583100021
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PubMedID 19799388
Absorption sensor for CO in combustion gases using 2.3 mu m tunable diode lasers
6th International Symposium on Measurement Techniques for Multiphase Flows
Chao, X., Jeffries, J. B., Hanson, R. K.
IOP PUBLISHING LTD.
2009
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DOI 10.1088/0957-0233/20/11/115201
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Web of Science ID 000270988800021
Calibration-free wavelength-modulation spectroscopy for measurements of gas temperature and concentration in harsh environments
APPLIED OPTICS
Rieker, G. B., Jeffries, J. B., Hanson, R. K.
2009
48 (29)
: 5546-5560
Abstract
We present a practical implementation of calibration-free wavelength-modulation spectroscopy with second harmonic detection (WMS-2f) for measurements of gas temperature and concentration in harsh environments. The method is applicable to measurements using lasers with synchronous wavelength and intensity modulation (such as injection current-tuned diode lasers). The key factors that enable measurements without the on-site calibration normally associated with WMS are (1) normalization of the WMS-2f signal by the first harmonic (1f) signal to account for laser intensity, and (2) the inclusion of laser-specific tuning characteristics in the spectral-absorption model that is used to compare with measured 1f-normalized, WMS-2f signals to infer gas properties. The uncertainties associated with the calibration-free WMS method are discussed, with particular emphasis on the influence of pressure and optical depth on the WMS signals. Many of these uncertainties are also applicable to calibrated WMS measurements. An example experimental setup that combines six tunable diode laser sources between 1.3 and 2.0 mum into one probe beam for measurements of temperature, H(2)O, and CO(2) is shown. A hybrid combination of wavelength and frequency demultiplexing is used to distinguish among the laser signals, and the optimal set of laser-modulation waveforms is presented. The system is demonstrated in the harsh environment of a ground-test scramjet combustor. A comparison of direct absorption and 1f-normalized, WMS-2f shows a factor of 4 increase in signal-to-noise ratio with the WMS technique for measurements of CO(2) in the supersonic flow. Multidimensional computational fluid-dynamics (CFD) calculations are compared with measurements of temperature and H(2)O using a simple method that accounts for the influence of line-of-sight (LOS) nonuniformity on the absorption measurements. The comparisons show the ability of the LOS calibration-free technique to gain useful information about multidimensional CFD models.
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Web of Science ID 000270667800018
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PubMedID 19823239
The effect of oxygenates on soot formation in rich heptane mixtures: A shock tube study
FUEL
Hong, Z., Davidson, D. F., VASU, S. S., Hanson, R. K.
2009
88 (10)
: 1901-1906
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DOI 10.1016/j.fuel.2009.04.013
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Web of Science ID 000268164800014
High-Temperature Shock Tube Measurements of Dimethyl Ether Decomposition and the Reaction of Dimethyl Ether with OH
JOURNAL OF PHYSICAL CHEMISTRY A
Cook, R. D., Davidson, D. F., Hanson, R. K.
2009
113 (37)
: 9974-9980
Abstract
We measured the first high-temperature rate measurements of two dimethyl ether (DME) reactions, (1) DME + Ar --> CH3O + CH3 + Ar and (2) DME + OH --> CH3OCH2 + H2O, in a shock tube by monitoring OH radicals. OH was measured with a narrow-line width laser absorption diagnostic using the well-known R1(5) line of the A-X(0,0) transition at 306.7 nm. The rate k1 is in the falloff regime at high temperatures, so it was measured at several pressures from 0.6 to 11.5 atm and temperatures from 1349 to 1790 K. OH radicals were formed by shock-heating mixtures of DME and O2 in Ar. These mixtures take advantage of the rapid decomposition of the product CH3O, forming H-atoms, which react with O2 to form OH. In carefully chosen mixtures, OH concentration is primarily sensitive to k1 and the well-known rate of H + O2 --> OH + O. Uncertainty in the k1 measurements was estimated to be +/-35%. The rate measurements were then modeled using RRKM theory, which describes the data quite well. Both the rate measurements and the RRKM model were fit from 1000 to 1800 K using the Troe falloff form: k(1,infinity)(T) = (4.38 x 10(21))T(-1.57) exp(-42,220 K/T) s(-1), k(1,o) = 7.52 x 10(15) exp(-21,537 K/T) cm3 mol(-1) s(-1), and F(cent) = 0.454 exp(-T/2510). The rate of k2 was measured at pressures near 1.6 atm and temperatures from 923 to 1423 K. OH radicals were generated by the thermal decomposition of the OH precursor tert-butyl hydroperoxide (TBHP), and k2 was inferred from the observed decay of OH with an estimated uncertainty of +/-40%. The high-temperature measurements were compared with several rate evaluations and previous low-temperature measurements. The rate evaluation by Curran et al. of k2 = (6.32 x 10(6))T2 exp(328 K/T) (cm3 mol(-1) s(-1)) was found to be an excellent fit to both the previous low-temperature measurements and this work.
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DOI 10.1021/jp902403n
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Web of Science ID 000269656000005
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PubMedID 19694474
Mid-infrared laser-absorption diagnostic for vapor-phase measurements in an evaporating n-decane aerosol
APPLIED PHYSICS B-LASERS AND OPTICS
Porter, J. M., Jeffries, J. B., Hanson, R. K.
2009
97 (1)
: 215-225
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DOI 10.1007/s00340-009-3658-x
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Web of Science ID 000269844700028
Recent advances in shock tube/laser diagnostic methods for improved chemical kinetics measurements
SHOCK WAVES
Davidson, D. F., Hanson, R. K.
2009
19 (4)
: 271-283
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DOI 10.1007/s00193-009-0203-0
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Web of Science ID 000268548300001
Contact surface tailoring condition for shock tubes with different driver and driven section diameters
SHOCK WAVES
Hong, Z., Davidson, D. F., Hanson, R. K.
2009
19 (4)
: 331-336
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DOI 10.1007/s00193-009-0212-z
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Web of Science ID 000268548300007
Sensitive detection of temperature behind reflected shock waves using wavelength modulation spectroscopy of CO2 near 2.7 mu m
APPLIED PHYSICS B-LASERS AND OPTICS
Farooq, A., Jeffries, J. B., Hanson, R. K.
2009
96 (1)
: 161-173
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DOI 10.1007/s00340-009-3446-7
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Web of Science ID 000266813000025
The use of driver inserts to reduce non-ideal pressure variations behind reflected shock waves
SHOCK WAVES
Hong, Z., Pang, G. A., Vasu, S. S., Davidson, D. F., Hanson, R. K.
2009
19 (2)
: 113-123
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DOI 10.1007/s00193-009-0205-y
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Web of Science ID 000266480300004
OH time-histories during oxidation of n-heptane and methylcyclohexane at high pressures and temperatures
COMBUSTION AND FLAME
Vasu, S. S., Davidson, D. F., Hanson, R. K.
2009
156 (4)
: 736-749
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DOI 10.1016/j.combustflame.2008.09.006
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Web of Science ID 000264582400002
Jet fuel ignition delay times: Shock tube experiments over wide conditions and surrogate model predictions (vol 152, pg 125, 2008)
COMBUSTION AND FLAME
Vasu, S. S., Davidson, D. F., Hanson, R. K.
2009
156 (4)
: 946-946
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DOI 10.1016/j.combustflame.2009.01.016
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Web of Science ID 000264582400020
Simultaneous imaging of exhaust gas residuals and temperature during HCCI combustion
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Rothamer, D. A., Snyder, J. A., Hanson, R. K., Steeper, R. R., Fitzgerald, R. P.
2009
32
: 2869-2876
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DOI 10.1016/j.proci.2008.07.018
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Web of Science ID 000264756900147
A diode laser absorption sensor for rapid measurements of temperature and water vapor in a shock tube
26th International Symposium on Shock Waves
Li, H., Farooq, A., Cook, R. D., Davidson, D. F., Jeffries, J. B., Hanson, R. K.
SPRINGER-VERLAG BERLIN.
2009
: 409–414
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Web of Science ID 000269686200065
Measurements of ignition delay times and OH species concentrations in DME/O-2/Ar mixtures
26th International Symposium on Shock Waves
Cook, R. D., Davidson, D. F., Hanson, R. K.
SPRINGER-VERLAG BERLIN.
2009
: 763–767
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Web of Science ID 000269686200123
High-pressure shock tube experiments and modeling of n-dodecane/air ignition
26th International Symposium on Shock Waves
VASU, S. S., Davidson, D. F., Hanson, R. K.
SPRINGER-VERLAG BERLIN.
2009
: 293–298
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Web of Science ID 000269686200046
Tunable Diode Laser Sensing of NO near 5.2 μm and CO near 2.3 μm in Combustion Exhaust Gases
6th U.S. National Meeting on Combustion
Jeffries, J. B., Hanson, R. K.
2009
Rate Measurements of DME Decomposition and DME + OH at Elevated Temperatures
6th U.S. National Combustion Meeting
Cook, R. D., Davidson, D. F., Hanson, R. K.
2009
Measurements of Ignition Delay Times and OH Species Concentrations in DME/O2/AR Mixtures
26th International Symposium on Shock Waves
Cook, R. D., Davidson, D. F., Hanson, R. K.
2009
View details for
DOI 10.1007/978-3-540-85168-4_123
Boundary Layer Entrainment and Combustion in a Transverse Jet in Supersonic Crossflow
62nd Annual Meeting of the APS Division of Fluid Dynamics
Heltsley, W. N., Gamba, M., Mungal, M. G., Hanson, R. K.
2009
Mixing and Reaction of Jets in Supersonic Crossflows
12th EUROMECH European Turbulence Conference
Heltsley, W. N., Do, H., Snyder, J. A., Mungal, M. G., Hanson, R. K.
2009
Control of Instabilities in a Swirl-Stabilized Flame with a Tunable Diode Laser Temperature Sensor
Nihon Nensho Gakkaishi (J. of Combustion Society of Japan)
Li, H., Jeffries, J. B., Hanson, R. K.
2009
50 (154)
: 289-296
Tunable Diode Laser Sensing in Harsh Environments: Applications to Propulsion and Combustion
invited plenary at 6th U.S. National Meeting on Combustion
Hanson, R. K.
2009
Dual-wavelength PLIF Measurements of Temperature and Composition in an Optical Engine with Negative Valve Overlaps
SAE World Congress & Exhibition
Snyder, J. A., Hanson, R. K., Fitzgerald, R. P., Steeper, R. R.
2009
: 460–74
View details for
DOI 10.4271/2009-01-0661
Tunable Diode Laser Absorption Measurements in a Fluidized-Bed Gasifier
26th International Pittsburgh Coal Conference
Jeffries, J. B., Fahrland, A., Min, W., Hanson, R. K., Sweeney, D., Wagner, D., Whitty, K. J.
2009
Ex Situ Analysis of Shock Wave Induced Damage to Bacillus Globigli (GB) Endospores
poster at 2009 Chem. & Biol. Defense Science & Tech. Conf.
Gates, S. D., McCartt, A. D., Lappas, P., Jeffries, J. B., Hanson, R. K., Hokama, L. A., Mortelmans, K. E.
2009
In Situ Measurements of Shock Wave Interactions with Endospore-laden Aerosol
poster at 2009 Chem. & Biol. Defense Science & Tech. Conf.
McCartt, A. D., Gates, S. D., Lappas, P., Jeffries, J. B., Hanson, R. K.,
2009
Near-wall Combustion Zones of a Transverse Jet in Supersonic Crossflow
poster at 2009 DFD meeting of APS
Heltsley, W. N., Gamba, M., Mungal, M. G., Hanson, R. K.
2009
Some Aspects of Toluene Ignition: Experiments and Modeling
6th U.S. National Combustion Meeting
Vasu, S. S., Davidson, D. F., Hanson, R. K.
2009
Simultaneous Measurement of Flow Fluctuations and Near-Field Pressure in a Subsonic Jet
15th AIAA/CEAS Aeroacoustics Conference (30th AIAA Aeroacoustics Conference)
Kastner, J., Cuppoletti, D., Gutmark, E., Fahrland, A., Jeffries, J. B., Hanson, R. K.,
2009
View details for
DOI 10.2514/6.2009-3211
Species Time-History Measurements During n-Heptane Oxidation behind Reflected Shock Waves
6th U.S. National Combustion Meeting
Davidson, D. F., Hong, Z., Pilla, G. L., Farooq, A., Cook, R. D., Hanson, R. K.,
2009
Analytic Model for Single-Cycle Detonation Tube with Diverging Nozzles
JOURNAL OF PROPULSION AND POWER
Barbour, E. A., Hanson, R. K.
2009
25 (1)
: 162-172
View details for
DOI 10.2514/1.35420
View details for
Web of Science ID 000262843200016
Measurements of high-pressure CO2 absorption near 2.0 mu m and implications on tunable diode laser sensor design
APPLIED PHYSICS B-LASERS AND OPTICS
Rieker, G. B., Jeffries, J. B., Hanson, R. K.
2009
94 (1)
: 51-63
View details for
DOI 10.1007/s00340-008-3280-3
View details for
Web of Science ID 000261328900005
Two-wavelength mid-IR absorption diagnostic for simultaneous measurement of temperature and hydrocarbon fuel concentration
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Klingbeil, A. E., Porter, J. M., Jeffries, J. B., Hanson, R. K.
2009
32
: 821-829
View details for
DOI 10.1016/j.proci.2008.06.058
View details for
Web of Science ID 000264756800092
Experimental study and modeling of shock tube ignition delay times for hydrogen-oxygen-argon mixtures at low temperatures
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Pang, G. A., Davidson, D. F., Hanson, R. K.
2009
32
: 181-188
View details for
DOI 10.1016/j.proci.2008.06.014
View details for
Web of Science ID 000264756800016
Diode laser-based detection of combustor instabilities with application to a scramjet engine
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Rieker, G. B., Jeffries, J. B., Hanson, R. K., Mathur, T., Gruber, M. R., Carter, C. D.
2009
32
: 831-838
View details for
DOI 10.1016/j.proci.2008.06.114
View details for
Web of Science ID 000264756800093
n-Dodecane oxidation at high-pressures: Measurements of ignition delay times and OH concentration time-histories
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Vasu, S. S., Davidson, D. F., Hong, Z., Vasudevan, V., Hanson, R. K.
2009
32
: 173-180
View details for
DOI 10.1016/j.proci.2008.05.006
View details for
Web of Science ID 000264756800015
Application of an aerosol shock tube to the measurement of diesel ignition delay times
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Haylett, D. R., Lappas, P. P., Davidson, D. F., Hanson, R. K.
2009
32
: 477-484
View details for
DOI 10.1016/j.proci.2008.06.134
View details for
Web of Science ID 000264756800052
An experimental and computational study of methyl ester decomposition pathways using shock tubes
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Farooq, A., Davidson, D. F., Hanson, R. K., Huynh, L. K., Violi, A.
2009
32
: 247-253
View details for
DOI 10.1016/j.proci.2008.06.084
View details for
Web of Science ID 000264756800024
Shock Tube Study of Methylcyclohexane Ignition over a Wide Range of Pressure and Temperature
ENERGY & FUELS
Vasu, S. S., Davidson, D. F., Hong, Z., Hanson, R. K.
2009
23 (1)
: 175-185
View details for
DOI 10.1021/ef800694g
View details for
Web of Science ID 000263629900026
Shock tube measurements of ignition delay times and OH time-histories in dimethyl ether oxidation
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Cook, R. D., Davidson, D. F., Hanson, R. K.
2009
32
: 189-196
View details for
DOI 10.1016/j.proci.2008.06.113
View details for
Web of Science ID 000264756800017
Temperature- and composition-dependent mid-infrared absorption spectrum of gas-phase gasoline: Model and measurements
FUEL
Klingbeil, A. E., Jeffries, J. B., Hanson, R. K.
2008
87 (17-18)
: 3600-3609
View details for
DOI 10.1016/j.fuel.2008.06.020
View details for
Web of Science ID 000259896000016
Fluorescence quantum yield of carbon dioxide for quantitative UV laser-induced fluorescence in high-pressure flames
APPLIED PHYSICS B-LASERS AND OPTICS
Lee, T., Bessler, W. G., Yoo, J., Schulz, C., Jeffries, J. B., Hanson, R. K.
2008
93 (2-3)
: 677-685
View details for
DOI 10.1007/s00340-008-3161-9
View details for
Web of Science ID 000260613600052
Two-wavelength mid-IR diagnostic for temperature and n-dodecane concentration in an aerosol shock tube
APPLIED PHYSICS B-LASERS AND OPTICS
Klingbeil, A. E., Jeffries, J. B., Davidson, D. F., Hanson, R. K.
2008
93 (2-3)
: 627-638
View details for
DOI 10.1007/s00340-008-3190-4
View details for
Web of Science ID 000260613600046
Development of an aerosol shock tube for kinetic studies of low-vapor-pressure fuels
COMBUSTION AND FLAME
Davidson, D. F., Haylett, D. R., Hanson, R. K.
2008
155 (1-2)
: 108-117
View details for
DOI 10.1016/j.combustflame.2008.01.006
View details for
Web of Science ID 000260362400008
High-temperature shock tube study of the reactions CH3+OH -> products and CH3OH+Ar -> products
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
Vasudevan, V., Cook, R. D., Hanson, R. K., Bowman, C. T., Golden, D. M.
2008
40 (8)
: 488-495
View details for
DOI 10.1002/kin.20334
View details for
Web of Science ID 000257769400004
In situ combustion measurements of H2O and temperature near 2.5 mu m using tunable diode laser absorption
MEASUREMENT SCIENCE & TECHNOLOGY
Farooq, A., Jeffries, J. B., Hanson, R. K.
2008
19 (7)
View details for
DOI 10.1088/0957-0233/19/7/075604
View details for
Web of Science ID 000256907800036
Measurements of near-UV absorption spectra of acetone and 3-pentanone at high temperatures
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Koch, J. D., Gronki, J., Hanson, R. K.
2008
109 (11)
: 2037-2044
View details for
DOI 10.1016/j.jqsrt.2008.02.010
View details for
Web of Science ID 000257597300009
Detection of trace nitric oxide concentrations using 1-D laser-induced fluorescence imaging
APPLIED PHYSICS B-LASERS AND OPTICS
Yoo, J., Lee, T., Jeffries, J. B., Hanson, R. K.
2008
91 (3-4)
: 661-667
View details for
DOI 10.1007/s00340-008-3030-6
View details for
Web of Science ID 000256251400042
A simple reactive gasdynamic model for the computation of gas temperature and species concentrations behind reflected shock waves
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
Li, H., Owens, Z. C., Davidson, D. F., Hanson, R. K.
2008
40 (4)
: 189-198
View details for
DOI 10.1002/kin.20305
View details for
Web of Science ID 000254068600003
CO2 concentration and temperature sensor for combustion gases using diode-laser absorption near 2.7 mu m
APPLIED PHYSICS B-LASERS AND OPTICS
Farooq, A., Jeffries, J. B., Hanson, R. K.
2008
90 (3-4)
: 619-628
View details for
DOI 10.1007/s00340-007-2925-y
View details for
Web of Science ID 000253574100041
Jet fuel ignition delay times: Shock tube experiments over wide conditions and surrogate model predictions
COMBUSTION AND FLAME
Vasu, S. S., Davidson, D. E., Hanson, R. K.
2008
152 (1-2)
: 125-143
View details for
DOI 10.1016/j.combustflame.2007.06.019
View details for
Web of Science ID 000252501500010
Application of an Aerosol Shock Tube for the Kinetic Studies of n-Dodecane/Nano-Aluminum Slurries
44th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
Jackson, D. E., Davidson, D. F., Hanson, R. K.
2008
View details for
DOI 10.2514/6.2008-4767
Aerosol Shock Tube Measurements of the Decomposition Rate Measurements of RP-1, RP-2, n-dodecane, and RP-1 with Fuel Stabilizers
44th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
MacDonald, M. E., Davidson, D. F., Hanson, R. K.
2008
View details for
DOI 10.2514/6.2008-4766
Tunable Diode Laser Absorption Diagnostics for CO2 and H2O in the 2.5-2.9 μm Spectral Region
WIP poster at 32nd Symp (Int.) on Combustion
Farooq, A., Jeffries, J. B., Hanson, R. K.
2008
2.3 μm Tunable Diode Laser Absorption Measurement of CO in Combustion Gases
WIP poster at 32nd Symp (Int.) on Combustion
Chao, X., Jeffries, J. B., Hanson, R. K.
2008
Hypersonic mass-flux sensing with fiber-coupled tunable diode lasers for ground test applications and flight evaluation
NASA ARMD Hypersonics NRA Review November
Hanson, Ronald, K., Jeffries, Jay, B., Chang, L.
2008
Shock Tube Studies of n-Alkane Oxidation and Pyrolysis: Development of a Fundamental Kinetic Database for Jet Fuels and Surrogates
JANNAF 4th Liquid Propulsion Joint Meeting
Davidson, D. F., Hanson, R. K.
2008
OH Time-History Absorption Measurements at High Pressures and Temperatures behind Reflected Shocks during Methylcyclohexane Oxidation
Western States Section of the Combustion Institute-Spring Meeting
Vasu, S. S., Davidson, D. F., Hanson, R. K.
2008
Destruction of Bacterial Spore-Laden Aqueous Aerosols in Shock-heated Flows
Laser Applications to Chemical, Security and Environmental Analysis
Lappas, P., Haylett, D. R., Porter, J. M., Jeffries, J. B., Hanson, R. K., Hokama, L. A., Mortelmans, K.
2008
View details for
DOI 10.1364/BIOMED.2008.JMA28
Shock Tube Study of Soot Formation in Rich Heptane/Oxygen Mixtures with DME/Acetone/Butanol/3-Pentanone Additives
32nd International Symposium on Combustion
Hong, Z., Davidson, D. F., Vasu, S. S., Hanson, R. K.
2008
Mapping the Combustion Stability Regimes of Hydrogen and Hydrocarbon Jets in Supersonic Crossflow with OH-PLIF
14th International Symposium on Applications of Laser Techniques to Fluid Mechanics
Heltsley, W. N., Snyder, J. A., Mungal, M. G., Hanson, R. K.
2008
Two-Wavelength PLIF Diagnostic for Temperature and Composition
SAE International Journal of Fuels and Lubricants
Rothamer, D. A., Snyder, J. A., Hanson, R. K., Steeper, R. R.
2008
1 (1)
: 520-533
View details for
DOI 10.4271/2008-01-1067
Mid-IR Gas Sensing for Combustion Applications
Laser Applications to Chemical, Security and Environmental Analysis
Jeffries, J. B., Klingbeil, A. E., Barbour, E. A., Farooq, A., Hanson, R. K.
2008
View details for
DOI 10.1364/LACSEA.2008.LWC2
Time-Resolved N-decane Vapor Concentration Measurement of CO in a Shock-Heated Evaporating Aerosol
WIP poster at 32nd Symp (Int.) on Combustion
Porter, J. M., Pilla, G. L., Jeffries, J. B., Hanson, R. K.
2008
Investigation of the High Temperature Thermal Stability of Kerosenes using Shock Tubes
JANNAF 4th Liquid Propulsion Joint Meeting
Davidson, D. F., MacDonald, M. E., Hanson, R. K.
2008
Laser-based Measurements of OH, Temperature, and Water Vapor Concentration in a Hydrocarbon-fueled Scramjet
44th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
Gruber, M., Carter, C., Ryan, M., Rieker, G. B., Jeffries, J. B., Hanson, R. K., Liu J, Mathur, T.
2008
View details for
DOI 10.2514/6.2008-5070
Dispersion, Activation and Destruction of Airborne Biological Threats: Laboratory Studies of the Interaction of Spore-Laden Aerosols with Shock/Blast Waves
poster #146 at Chemical and Biological Defense Physical Science and Technology Conference
Jeffries, J. B., Hanson, R. K., Davidson, D. F., Lappas, P., McCartt, A. D., Strand, C., Hokama, L. A., Mortelmans, K. E.
2008
Diode laser measurements of temperature-dependent collisional-narrowing and broadening parameters of Ar-perturbed H2O transitions at 1391.7 and 1397.8 nm
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Li, H., Farooq, A., Jeffries, J. B., Hanson, R. K.
2008
109 (1)
: 132-143
View details for
DOI 10.1016/j.jqsrt.2007.05.008
View details for
Web of Science ID 000251494600010
Shock tube study of the reaction of CH with N-2: Overall rate and branching ratio
JOURNAL OF PHYSICAL CHEMISTRY A
Vasudevan, V., Hanson, R. K., Bowman, C. T., Golden, D. M., Davidson, D. F.
2007
111 (46)
: 11818-11830
Abstract
We have studied the reaction between CH and N2, (1) CH + N2 --> products, in shock tube experiments using CH and NCN laser absorption. CH was monitored by continuous-wave, narrow-line-width laser absorption at 431.1 nm. The overall rate coefficient of the CH + N2 reaction was measured between 1943 and 3543 K, in the 0.9-1.4 atm pressure range, using a CH perturbation approach. CH profiles recorded upon shock-heating dilute mixtures of ethane in argon and acetic anhydride in argon were perturbed by the addition of nitrogen. The perturbation in the CH concentration was principally due to the reaction between CH and N2. Rate coefficients for the overall reaction were inferred by kinetically modeling the perturbed CH profiles. A least-squares, two-parameter fit of the current overall rate coefficient measurements was k1 = 6.03 x 1012 exp(-11150/T [K]) (cm3 mol-1 s-1). The uncertainty in k1 was estimated to be approximately +/-25% and approximately +/-35% at approximately 3350 and approximately 2100 K, respectively. At high temperatures, there are two possible product channels for the reaction between CH and N2, (1a) CH + N2 --> HCN + N and (1b) CH + N2 --> H + NCN. The large difference in the rates of the reverse reactions enabled inference of the branching ratio of reaction 1, k1b/(k1b + k1a), in the 2228-2905 K temperature range by CH laser absorption in experiments in a nitrogen bath. The current CH measurements are consistent with a branching ratio of 1 and establish NCN and H as the primary products of the CH + N2 reaction. A detailed and systematic uncertainty analysis, taking into account experimental and mechanism-induced contributions, yields a conservative lower bound of 0.70 for the branching ratio. NCN was also detected by continuous-wave, narrow-line-width laser absorption at 329.13 nm. The measured NCN time histories were used to infer the rate coefficient of the reaction between H and NCN, H + NCN --> HCN + N, and to estimate an absorption coefficient for the NCN radical.
View details for
DOI 10.1021/jp075638c
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Web of Science ID 000250967800012
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PubMedID 17958405
Near-infrared diode laser absorption sensor for rapid measurements of temperature and water vapor in a shock tube
APPLIED PHYSICS B-LASERS AND OPTICS
Li, H., Farooq, A., Jeffries, J. B., Hanson, R. K.
2007
89 (2-3)
: 407-416
View details for
DOI 10.1007/s00340-007-2781-9
View details for
Web of Science ID 000250629900044
Temperature-dependent mid-IR absorption spectra of gaseous hydrocarbons
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Klingbeil, A. E., Jeffries, J. B., Hanson, R. K.
2007
107 (3)
: 407-420
View details for
DOI 10.1016/j.jqsrt.2007.03.004
View details for
Web of Science ID 000249900100004
Diode-laser sensor for air-mass flux 1: Design and wind-tunnel validation
AIAA JOURNAL
Lyle, K. H., Jeffries, J. B., Hanson, R. K.
2007
45 (9)
: 2204-2212
View details for
DOI 10.2514/1.26360
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Web of Science ID 000249451700010
Diode-laser sensor for air-mass flux 2: Nonuniform flow modeling and aeroengine tests
AIAA JOURNAL
Lyle, K. H., Jeffries, J. B., Hanson, R. K., Winter, M.
2007
45 (9)
: 2213-2223
View details for
DOI 10.2514/1.27683
View details for
Web of Science ID 000249451700011
High-temperature shock tube measurements of methyl radical decomposition
JOURNAL OF PHYSICAL CHEMISTRY A
Vasudevan, V., Hanson, R. K., Golden, D. M., Bowman, C. T., Davidson, D. F.
2007
111 (19)
: 4062-4072
Abstract
We have studied the two-channel thermal decomposition of methyl radicals in argon, involving the reactions CH3 + Ar --> CH + H2 + Ar (1a) and CH3 + Ar --> CH2 + H + Ar (1b), in shock tube experiments over the 2253-3527 K temperature range, at pressures between 0.7 and 4.2 atm. CH was monitored by continuous-wave, narrow-line-width laser absorption at 431.1311 nm. The collision-broadening coefficient for CH in argon, 2gamma(CH-Ar), was measured via repeated single-frequency experiments in the ethane pyrolysis system behind reflected shock waves. The measured 2gamma(CH-Ar) value and updated spectroscopic and molecular parameters were used to calculate the CH absorption coefficient at 431.1311 nm (23194.80 cm(-1)), which was then used to convert raw traces of fractional transmission to quantitative CH concentration time histories in the methyl decomposition experiments. The rate coefficient of reaction 1a was measured by monitoring CH radicals generated upon shock-heating highly dilute mixtures of ethane, C2H6, or methyl iodide, CH3I, in an argon bath. A detailed chemical kinetic mechanism was used to model the measured CH time histories. Within experimental uncertainty and scatter, no pressure dependence could be discerned in the rate coefficient of reaction 1a in the 0.7-4.2 atm pressure range. A least-squares, two-parameter fit of the current measurements, applicable between 2706 and 3527 K, gives k(1a) (cm(3) mol(-1) s(-1)) = 3.09 x 1015 exp[-40700/T (K)]. The rate coefficient of reaction 1b was determined by shock-heating dilute mixtures of C2H6 or CH3I and excess O2 in argon. During the course of reaction, OH radicals were monitored using the well-characterized R(1)(5) line of the OH A-X (0,0) band at 306.6871 nm (32606.52 cm(-1)). H atoms generated via reaction 1b rapidly react with O2, which is present in excess, forming OH. The OH traces are primarily sensitive to reaction 1b, reaction 9 (H + O2 --> OH + O) and reaction 10 (CH3 + O2 --> products), where the rate coefficients of reactions 9 and 10 are relatively well-established. No pressure dependence could be discerned for reaction 1b between 1.1 and 3.9 atm. A two-parameter, least-squares fit of the current data, valid over the 2253-2975 K temperature range, yields the rate expression k(1b) (cm(3) mol(-1) s(-1)) = 2.24 x 10(15) exp[-41600/T (K)]. Theoretical calculations carried out using a master equation/RRKM analysis fit the measurements reasonably well.
View details for
DOI 10.1021/jp0677187
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Web of Science ID 000246341200040
View details for
PubMedID 17388279
Shock-induced behavior in micron-sized water aerosols
PHYSICS OF FLUIDS
Hanson, T. C., Davidson, D. F., Hanson, R. K.
2007
19 (5)
View details for
DOI 10.1063/1.2736082
View details for
Web of Science ID 000246892700035
A diode laser sensor for rapid, sensitive measurements of gas temperature and water vapour concentration at high temperatures and pressures
MEASUREMENT SCIENCE & TECHNOLOGY
Rieker, G. B., Li, H., Liu, X., Jeffries, J. B., Hanson, R. K., Allen, M. G., Wehe, S. D., Mulhall, P. A., Kindle, H. S.
2007
18 (5)
: 1195-1204
View details for
DOI 10.1088/0957-0233/18/5/005
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Web of Science ID 000246553100007
Measurements of spectral parameters of water-vapour transitions near 1388 and 1345 nm for accurate simulation of high-pressure absorption spectra
MEASUREMENT SCIENCE & TECHNOLOGY
Liu, X., Jeffries, J. B., Hanson, R. K.
2007
18 (5)
: 1185-1194
View details for
DOI 10.1088/0957-0233/18/5/004
View details for
Web of Science ID 000246553100006
Design of a fiber-coupled mid-infrared fuel sensor for pulse detonation engines
AIAA JOURNAL
Klingbeil, A. E., Jeffries, J. B., Hanson, R. K.
2007
45 (4)
: 772-778
View details for
DOI 10.2514/1.26504
View details for
Web of Science ID 000245345400005
Measurements of near-IR water vapor absorption at high pressure and temperature
APPLIED PHYSICS B-LASERS AND OPTICS
Rieker, G. B., Liu, X., Li, H., Jeffries, J. B., Hanson, R. K.
2007
87 (1)
: 169-178
View details for
DOI 10.1007/s00340-006-2523-4
View details for
Web of Science ID 000244820600030
Single-cycle unsteady nozzle phenomena in pulse detonation engines
AIAA/ASME/SAE/ASEE 41st Joint Propulsion Conference
Owens, Z. C., Hanson, R. K.
AMER INST AERONAUT ASTRONAUT.
2007
: 325–37
View details for
DOI 10.2514/1-22415
View details for
Web of Science ID 000244983700009
Experimental study of H2O spectroscopic parameters in the near-IR (6940-7440cm(-1)) for gas sensing applications at elevated temperature
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Liu, X., Zhou, X., Jeffries, J. B., Hanson, R. K.
2007
103 (3)
: 565-577
View details for
DOI 10.1016/j.jqsrt.2006.07.008
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Web of Science ID 000242562100010
Wavelength-scanned tunable diode laser temperature measurements in a model gas turbine combustor
AIAA JOURNAL
Zhou, X., Jeffries, J. B., Hanson, R. K., Li, G., Gutmark, E. J.
2007
45 (2)
: 420-425
View details for
DOI 10.2514/1.26624
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Web of Science ID 000244146200012
Measurement of nonuniform temperature distributions using line-of-sight absorption spectroscopy
AIAA 44th Aerospace Sciences Meeting and Exhibit
Liu, X., Jeffries, J. B., Hanson, R. K.
AMER INST AERONAUT ASTRONAUT.
2007
: 411–19
View details for
DOI 10.2514/1.26708
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Web of Science ID 000244146200011
Sensing and control of combustion instabilities in swirl-stabilized combustors using diode-laser absorption
AIAA/ASME/SAE/ASEE 42nd Joint Propulsion Conference
Li, H., Zhou, X., Jeffries, J. B., Hanson, R. K.
AMER INST AERONAUT ASTRONAUT.
2007
: 390–98
View details for
DOI 10.2514/1.24774
View details for
Web of Science ID 000244146200009
Thermal decomposition of toluene: Overall rate and branching ratio
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Oehlschlaeger, M. A., Davidson, D. F., Hanson, R. K.
2007
31
: 211-219
View details for
DOI 10.1016/j.proci.2006.07.002
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Web of Science ID 000252858000015
Simultaneous Mid-IR Measurement of Equivalence Ratio and Temperature in a JP-10-Fueled Pulsed Detonation Engine
45th AIAA Aerospace Sciences Meeting and Exhibit
Barbour, E. A., Hanson, R. K., Hutcheson, P., Brophy, C., Sinibaldi, J. O.
2007
View details for
DOI 10.2514/6.2007-232
Combustion Stability Regimes of Hydrogen Jets in Supersonic Crossflow
43rd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
Heltsley, W. N., Snyder, J. A., Cheung, C. C., Mungal, M. G., Hanson, R. K.
2007
View details for
DOI 10.2514/6.2007-5401
Development of an Aerosol Shock Tube for Kinetic Studies of Low-Vapor-Pressure Fuels
43rd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
Haylett, D. R., Davidson, D. F., Hanson, R. K.
2007
View details for
DOI 10.2514/6.2007-5678
Transient Plasma Ignition for Delay Reduction in Pulse Detonation Engines
45th AIAA Aerospace Sciences Meeting and Exhibit
Cathey, C., Wang, F., Tang, T., Kuthi, A., Gundersen, M., Sinibaldi, J. O., Brophy, C., Barbour, E. A., Hanson, R. K., Hoke, J., Schauer, F., Corrigan, J., Yu, J.
2007
View details for
DOI 10.2514/6.2007-443
Shock Tube Studies of Soot Formation in Heptane and Heptane/DME Mixtures
45th AIAA Aerospace Sciences Meeting and Exhibit
Hong, Z., Davidson, D. F., Hanson, R. K.
2007
View details for
DOI 10.2514/6.2007-774
Measurements of CO2 and H2O Near 2.7 µm Using Tunable Diode Laser Absorption
43rd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
Farooq, A., Li, H., Jeffries, J. B., Hanson, R. K.
2007
View details for
DOI 10.2514/6.2007-5015
Jet Fuel Ignition Delay Times and Modeling: Studies at High Pressures and Low Temperatures in a Shock Tube
43rd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
Vasu, S. S., Davidson, D. F., Hanson, R. K.
2007
View details for
DOI 10.2514/6.2007-5671
Pressure-Sensitive Paint Measurements of Sonic Jet Injection into Supersonic Crossflow
43rd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
Snyder, J. A., Chang, L. S., Nakakita, K., Heltsley, W. N., Mungal, M. G., Hanson, R. K.
2007
View details for
DOI 10.2514/6.2007-5418
Shock Tube Studies of Soot Formation in Rich Heptane/Oxygen Mixtures with DME/Acetone/Butanal Additives
WSS/CI Fall Meeting
Hong, Z., Davidson, D. F., Hanson, R. K.
2007
Facilities for the Validation of Line-of-Sight Combustion Gas Monitors for Coal-Fire Boilers
17th Annual Joint ISA POWID/EPRI Controls and Instrumentation Conference and 50th Annual ISA POWID Symposium
Hanson, R. K., Haswell, J., Himes, R., Jeffries, J. B., Muncy, J., Padgett, E., Sorge, J. N.
2007
Combustion Stability Regimes of Hydrogen Jets in Supersonic Crossflow
43rd AIAA/ASME/SAE/ASE Joint Propulsion Conference
Heltsley, W. N., Snyder, J. A., Cheung, C. C., Mungal, M. G., Hanson, R. K.
2007
View details for
DOI 10.2514/6.2007-5401
Two-wavelength mid-IR Absorption Sensor for Simultaneous Temperature and n-Heptane Concentration Experiments
5th U.S. Combustion Meeting
Klingbeil, A. E., Porter, J. M., Jeffries, J. B., Hanson, R. K.
2007
Methylcyclohexane Oxidation: Shock Tube Experiments and Modeling Over a Wide Range of Conditions
5th U.S. National Combustion Meeting
Vasu, S. S., Parikh, N. N., Davidson, D. F., Hanson, R. K.
2007
Jet Fuel Ignition Delay Times: Shock Tube Investigations at High Pressures
21st Int. Colloquium on the Dynamics of Explosions and Reactive Systems
Vasu, S. S., Davidson, D. F., Hanson, R. K.
2007
Shock Tube Ignition Delay Times and Modeling of Jet Fuel Mixtures
42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
Vasu, S. S., Davidson, D. F., Hanson, R. K.
2007
View details for
DOI 10.2514/6.2006-4402
Shock Tube Ignition Delay Times for Hydrogen-Oxygen-Argon Mixtures at Low Temperatures and Elevated Pressures
WSS/CI Fall Meeting
Pang, G. A., Davidson, D. F., Hanson, R. K.
2007
Detection of Trace NO Conditions using 1-D NO-LIF Imaging
5th U.S. Combustion Meeting
Yoo, J. H., Lee, T., Jeffries, J. B., Hanson, R. K.
2007
A Diode-Laser Absorption Sensor for Temperature and Water Vapor in a Shock Tube
26th Int. Symp. On Shock Waves
Li, H., Farooq, A., Cook, R. C., Davidson, D. F., Jeffries, J. B., Hanson, R. K.
2007
View details for
DOI 10.1007/978-3-540-85168-4_65
Optimized Two-Line Tracer PLIF Measurements of Temperature and Composition in an IC engine
WSS/CI Fall Meeting
Rothamer, D. A., Snyder, J. A., Steeper, R. R., Hanson, R. K.
2007
Comparison of Wavelength Modulation and Direct Absorption Spectroscopy for Measurements of Gas Temperature in a Scramjet Combustor
5th U.S. Combustion Meeting
Rieker, G. B., Jeffries, J. B., Hanson, R. K.
2007
Experimental evaluation of strategies for quantitative laser-induced-fluorescence imaging of nitric oxide in high-pressure flames (1-60 bar)
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Lee, T., Jeffries, J. B., Hanson, R. K.
2007
31
: 757-764
View details for
DOI 10.1016/j.proci.2006.07.090
View details for
Web of Science ID 000252858000075
High-temperature measurements of the rates of the reactions CH2O+Ar -> Products and CH2O+O-2 -> Products
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Vasudevan, V., Davidson, D. F., Hanson, R. K., Bowman, C. T., Golden, D. M.
2007
31
: 175-183
View details for
DOI 10.1016/j.proci.2006.07.017
View details for
Web of Science ID 000252858000011
Tunable mid-IR laser absorption sensor for time-resolved hydrocarbon fuel measurements
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Klingbeil, A. E., Jeffries, J. B., Hanson, R. K.
2007
31
: 807-815
View details for
DOI 10.1016/j.proci.2006.07.228
View details for
Web of Science ID 000252858000081
In-cylinder gas temperature and water concentration measurements in HCCI engines using a multiplexed-wavelength diode-laser system: Sensor development and initial demonstration
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Mattison, D. W., Jeffries, J. B., Hanson, R. K., Steeper, R. R., De Zilwa, S., Dec, J. E., Sjoberg, M., Hwang, W.
2007
31
: 791-798
View details for
DOI 10.1016/j.proci.2006.07.048
View details for
Web of Science ID 000252858000079
Rapid measurements of temperature and H2O concentration in IC engines with a spark plug-mounted diode laser sensor
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Rieker, G. B., Li, H., Liu, X., Liu, J. T., Jeffries, J. B., Hanson, R. K., Allen, M. G., Wehe, S. D., Mulhall, P. A., Kindle, H. S., Kakuho, A., Sholes, K. R., Matsuura, T., Takatani, S.
2007
31
: 3041-3049
View details for
DOI 10.1016/j.proci.2006.07.158
View details for
Web of Science ID 000252858200156
Methyl concentration time-histories during iso-octane and n-heptane oxidation and pyrolysis
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Davidson, D. F., Oehlschlaeger, M. A., Hanson, R. K.
2007
31
: 321-328
View details for
DOI 10.1016/j.proci.2006.07.087
View details for
Web of Science ID 000252858000027
Active control of lean blowout in a swirl-stabilized combustor using a tunable diode laser
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Li, H., Zhou, X., Jeffries, J. B., Hanson, R. K.
2007
31
: 3215-3223
View details for
DOI 10.1016/j.proci.2006.07.006
View details for
Web of Science ID 000252858200177
Investigation of the reaction of toluene with molecular oxygen in shock-heated gases
COMBUSTION AND FLAME
Oehlschlaeger, M. A., Davidson, D. F., Hanson, R. K.
2006
147 (3)
: 195-208
View details for
DOI 10.1016/j.combustflame.2006.08.006
View details for
Web of Science ID 000242061400004
Fuel distribution effects on pulse detonation engine operation and performance
JOURNAL OF PROPULSION AND POWER
Brophy, C. M., Hanson, R. K.
2006
22 (6)
: 1155-1161
View details for
DOI 10.2514/1.18713
View details for
Web of Science ID 000242469900002
Measurement of reflected-shock bifurcation over a wide range of gas composition and pressure
SHOCK WAVES
Petersen, E. L., Hanson, R. K.
2006
15 (5)
: 333-340
View details for
DOI 10.1007/s00193-006-0032-3
View details for
Web of Science ID 000240126300005
Experimental investigation of toluene plus H -> benzyl plus H-2 at high temperatures
JOURNAL OF PHYSICAL CHEMISTRY A
Oehlschlaeger, M. A., Davidson, D. F., Hanson, R. K.
2006
110 (32)
: 9867-9873
Abstract
The reaction of toluene with hydrogen atoms yielding benzyl and molecular hydrogen, C(6)H(5)CH(3) + H --> C(6)H(5)CH(2) + H(2), was investigated using UV laser absorption of benzyl radicals at 266 nm in shock tube experiments. Test gas mixtures of toluene and ethyl iodide, an H-atom source, diluted in argon were heated in reflected shock waves to temperatures ranging from 1256 to 1667 K at total pressures around 1.7 bar. Measurement of laser absorption at 266 nm due to benzyl radicals allowed determination of the rate coefficient of the title reaction, reaction 1. A two-parameter best-fit Arrhenius expression for the rate determinations over the temperature range of these experiments is given by k(1)(T) = 1.33 x 10(15) exp(-14880 [cal/mol]/RT) [cm(3) mol(-1) s(-1)]. With the use of both the high-temperature shock tube measurements reported here and the rate coefficient determination of Ellis et al. (Ellis, C.; Scott, M. S.; Walker, R. W. Combust. Flame 2003, 132, 291) at 773 K the best-fit rate coefficient for reaction 1 can be described using a three-parameter Arrhenius expression by k(1)(T) = 6.47T (3.98) exp(-3384 [cal/mol]/RT) [cm(3) mol(-1) s(-1)].
View details for
DOI 10.1021/jp062567t
View details for
Web of Science ID 000239655800012
View details for
PubMedID 16898688
Temperature- and pressure-dependent absorption cross sections of gaseous hydrocarbons at 3.39 mu m
MEASUREMENT SCIENCE & TECHNOLOGY
Klingbeil, A. E., Jeffries, J. B., Hanson, R. K.
2006
17 (7)
: 1950-1957
View details for
DOI 10.1088/0957-0233/17/7/038
View details for
Web of Science ID 000238645900040
High-temperature thermal decomposition of benzyl radicals
JOURNAL OF PHYSICAL CHEMISTRY A
Oehlschlaeger, M. A., Davidson, D. F., Hanson, R. K.
2006
110 (21)
: 6649-6653
Abstract
The thermal decomposition of the benzyl radical was studied in shock tube experiments using ultraviolet laser absorption at 266 nm for detection of benzyl. Test gas mixtures of 50 and 100 ppm of benzyl iodide dilute in argon were heated in reflected shock waves to temperatures ranging from 1430 to 1730 K at total pressures around 1.5 bar. The temporal behavior of the 266 nm absorption allowed for determination of the benzyl absorption cross-section at 266 nm and the rate coefficient for benzyl decomposition, C6H5CH2 --> C7H6 + H. The rate coefficient for benzyl decomposition at 1.5 bar can be described using a two-parameter Arrhenius expression by k1(T) = 8.20 x 10(14) exp(-40 600 K/T) [s(-1)], and the benzyl absorption cross-section at 266 nm was determined to be sigma(benzyl) = 1.9 x 10(-17) cm2 molecule(-1) with no discernible temperature dependence over the temperature range of the experiments.
View details for
DOI 10.1021/jp0553961
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Web of Science ID 000237831500011
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PubMedID 16722678
Development of a tunable diode laser sensor for measurements of gas turbine exhaust temperature
APPLIED PHYSICS B-LASERS AND OPTICS
Liu, X., Jeffries, J. B., Hanson, R. K., Hinckley, K. M., Woodmansee, M. A.
2006
82 (3)
: 469-478
View details for
DOI 10.1007/s00340-005-2078-9
View details for
Web of Science ID 000235120200023
Extension of wavelength-modulation spectroscopy to large modulation depth for diode laser absorption measurements in high-pressure gases
APPLIED OPTICS
Li, H. J., Rieker, G. B., Liu, X., Jeffries, J. B., Hanson, R. K.
2006
45 (5)
: 1052-1061
Abstract
Tunable diode laser absorption measurements at high pressures by use of wavelength-modulation spectroscopy (WMS) require large modulation depths for optimum detection of molecular absorption spectra blended by collisional broadening or dense spacing of the rovibrational transitions. Diode lasers have a large and nonlinear intensity modulation when the wavelength is modulated over a large range by injection-current tuning. In addition to this intensity modulation, other laser performance parameters are measured, including the phase shift between the frequency modulation and the intensity modulation. Following published theory, these parameters are incorporated into an improved model of the WMS signal. The influence of these nonideal laser effects is investigated by means of wavelength-scanned WMS measurements as a function of bath gas pressure on rovibrational transitions of water vapor near 1388 nm. Lock-in detection of the magnitude of the 2f signal is performed to remove the dependence on detection phase. We find good agreement between measurements and the improved model developed for the 2f component of the WMS signal. The effects of the nonideal performance parameters of commercial diode lasers are especially important away from the line center of discrete spectra, and these contributions become more pronounced for 2f signals with the large modulation depths needed for WMS at elevated pressures.
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Web of Science ID 000235387400028
View details for
PubMedID 16512549
Time evolution and mixing characteristics of hydrogen and ethylene transverse jets in supersonic crossflows
PHYSICS OF FLUIDS
Ben-Yakar, A., Mungal, M. G., Hanson, R. K.
2006
18 (2)
View details for
DOI 10.1063/1.2139684
View details for
Web of Science ID 000235663700019
Advances in Diode Laser Sensors for Combustion and Propulsion
Invited School of Mech. Engring. Dept. Seminar
Hanson, R. K.
2006
Diode Laser Sensors for Ground Testing
25th AIAA Aerodynamic Measurement Technology and Ground Testing Conference
Hanson, R. K., Jeffries, J. B.
2006
View details for
DOI 10.2514/6.2006-3441
Design and Characterization of the Stanford 6 Inch Expansion Tube
42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
Heltsley, W. N., Snyder, J. A., Houle, A. J., Davidson, D. F., Mungal, M. G., Hanson, R. K.
2006
View details for
DOI 10.2514/6.2006-4443
Sensing and control of combustion instabilities in swirl-stabilized combustors using diode-laser absorption
42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
Li, H., Zhou, X., Jeffries, J. B., Hanson, R. K.
2006
View details for
DOI 10.2514/6.2006-4395
Diode Laser Absorption Measurements of Supersonic Flow in an Expansion Tube
42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
Houle, A., Nakakita, K., Heltsley, W. N., Jeffries, J. B., Hanson, R. K.
2006
View details for
DOI 10.2514/6.2006-4444
3.39 μm Laser Absorption Sensor for Ethylene and Propane Measurements in a Pulse Detonation Engine
44th AIAA Aerospace Sciences Meeting and Exhibit
Klingbeil, A. E., Jeffries, J. B., Hanson, R. K.
2006
View details for
DOI 10.2514/6.2006-925
Diode Laser Sensors for Combustion and Propulsion Flows
JANNAF-41st Comb. Subcommittee/29th Airbreathing Prop. Subcommittee/23rd Prop. Sys. Hazards Subcommittee Meeting
Hanson, R. K., Jeffries, J. B.
2006
Visualization of High-Speed Flows using Infrared Planar Laser-Induced Fluorescence (IRPLIF) of CO and CO2
42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
Rothamer, D. A., Hanson, R. K.
2006
View details for
DOI 10.2514/6.2006-4300
Selection of NIR H2O absorption transitions for in-cylinder measurement of temperature in IC engines
MEASUREMENT SCIENCE & TECHNOLOGY
Zhou, X., Liu, X., Jeffries, J. B., Hanson, R. K.
2005
16 (12)
: 2437-2445
View details for
DOI 10.1088/0957-0233/16/12/006
View details for
Web of Science ID 000234035500008
Near-infrared diode laser absorption diagnostic for temperature and water vapor in a scramjet combustor
APPLIED OPTICS
Liu, J. T., Rieker, G. B., Jeffries, J. B., Gruber, M. R., Carter, C. D., Mathur, T., Hanson, R. K.
2005
44 (31)
: 6701-6711
Abstract
Tunable diode laser absorption measurements of gas temperature and water concentration were made at the exit of a model scramjet combustor fueled on JP-7. Multiplexed, fiber-coupled, near-infrared distributed feedback lasers were used to probe three water vapor absorption features in the 1.34-1.47 microm spectral region (2v1 and vl + v3 overtone bands). Ratio thermometry was performed using direct-absorption wavelength scans of isolated features at a 4-kHz repetition rate, as well as 2f wavelength modulation scans at a 2-kHz scan rate. Large signal-to-noise ratios demonstrate the ability of the optimally engineered optical hardware to reject beam steering and vibration noise. Successful measurements were made at full combustion conditions for a variety of fuel/air equivalence ratios and at eight vertical positions in the duct to investigate spatial uniformity. The use of three water vapor absorption features allowed for preliminary estimates of temperature distributions along the line of sight. The improved signal quality afforded by 2f measurements, in the case of weak absorption, demonstrates the utility of a scanned wavelength modulation strategy in such situations.
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Web of Science ID 000232938000020
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PubMedID 16270559
Development of a fast temperature sensor for combustion gases using a single tunable diode laser
APPLIED PHYSICS B-LASERS AND OPTICS
Zhou, X., Jeffries, J. B., Hanson, R. K.
2005
81 (5)
: 711-722
View details for
DOI 10.1007/s00340-005-1934-y
View details for
Web of Science ID 000231881400022
Measurement of aerosol size distribution functions by wavelength-multiplexed laser extinction
APPLIED PHYSICS B-LASERS AND OPTICS
Ma, L., Hanson, R. K.
2005
81 (4)
: 567-576
View details for
DOI 10.1007/s00340-005-1913-3
View details for
Web of Science ID 000231460800021
High-temperature UV absorption of methyl radicals behind shock waves
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Oehlschlaeger, M. A., Davidson, D. F., Hanson, R. K.
2005
92 (4)
: 393-402
View details for
DOI 10.1016/j.jqsrt.2004.08.006
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Web of Science ID 000226886300001
High-temperature measurements of the reactions of OH with toluene and acetone
JOURNAL OF PHYSICAL CHEMISTRY A
Vasudevan, V., Davidson, D. F., Hanson, R. K.
2005
109 (15)
: 3352-3359
Abstract
The reaction of hydroxyl [OH] radicals with toluene [C6H5CH3] was studied at temperatures between 911 and 1389 K behind reflected shock waves at pressures of approximately 2.25 atm. OH radicals were generated by rapid thermal decomposition of shock-heated tert-butyl hydroperoxide [(CH3)3-CO-OH], and monitored by narrow-line width ring dye laser absorption of the well-characterized R1(5) line of the OH A-X (0,0) band near 306.7 nm. OH time histories were modeled by using a comprehensive toluene oxidation mechanism. Rate constants for the reaction of C6H5CH3 with OH were extracted by matching modeled and measured OH concentration time histories in the reflected shock region. Detailed error analyses yielded an uncertainty estimate of +/-30% at 1115 K for the rate coefficient of this reaction. The current high-temperature data were fit with the lower temperature measurements of Tully et al. [J. Phys. Chem. 1981, 85, 2262-2269] to the following two-parameter form, applicable over 570-1389 K: k3 = (1.62 x 10(13)) exp(-1394/T [K]) [cm3 mol(-1) s(-1)]. The reaction between OH radicals and acetone [CH3COCH3] was one of the secondary reactions encountered in the toluene + OH experiments. Direct high-temperature measurements of this reaction were carried out at temperatures ranging from 982 to 1300 K in reflected shock wave experiments at an average total pressure of 1.65 atm. Uncertainty limits were estimated to be +/-25% at 1159 K. A two-parameter fit of the current data yields the following rate expression: k6 = (2.95 x 10(13)) exp(-2297/T [K]) [cm3 mol(-1) s(-1)].
View details for
DOI 10.1021/jp0501143
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Web of Science ID 000228407700012
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PubMedID 16833670
Effect of heat loss on pulse-detonation-engine flow fields and performance
JOURNAL OF PROPULSION AND POWER
Radulescu, M. I., Hanson, R. K.
2005
21 (2)
: 274-285
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Web of Science ID 000227668400008
Direct measurements of the reaction OH+CH2O -> HCO+H(2)Oat high temperatures
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
Vasudevan, V., Davidson, D. F., Hanson, R. K.
2005
37 (2)
: 98-109
View details for
DOI 10.1002/kin.20056
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Web of Science ID 000226341900006
Toluene LIF at elevated temperatures: implications for fuel-air ratio measurements
APPLIED PHYSICS B-LASERS AND OPTICS
Koban, W., Koch, J. D., Hanson, R. K., Schulz, C.
2005
80 (2)
: 147-150
View details for
DOI 10.1007/s00340-004-1715-z
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Web of Science ID 000226320700002
Flowfield characterization and simulation validation of multiple-geometry PDEs using cesium-based velocimetry
30th International Symposium on Combustion
Owens, Z. C., Mattison, D. W., Barbour, E. A., Morris, C. I., Hanson, R. K.
ELSEVIER SCIENCE INC.
2005
: 2791–2798
View details for
DOI 10.1016/j.proci.2004.08.050
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Web of Science ID 000229944300122
Mid-IR Laser Absorption Sensor for Ethylene in a Pulse Detonation Engine
41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
Klingbeil, A. E., Jeffries, J. B., Hanson, R. K., Brophy, C. M., Sinibaldi, J. O.,
2005
View details for
DOI 10.2514/6.2005-4375
Fast Temperature Sensor for Combustion Control Using H2O Diode Laser Absorption near 1.4 μm
43rd AIAA Aerospace Sciences Meeting and Exhibit
Zhou, X., Jeffries, J. B., Hanson, R. K., Li, G., Gutmark, E.
2005
View details for
DOI 10.2514/6.2005-627
Measurements of Gas Temperature in the Arc-heater of a Large Scale Arcjet Facility using Tunable Diode Laser Absorption
43rd AIAA Aerospace Sciences Meeting and Exhibit
Kim, S., Jeffries, J. B., Hanson, R. K., Raiche, G. A.
2005
View details for
DOI 10.2514/6.2005-900
Laser diagnostics and combustion chemistry for pulse detonation engines
Combustion Processes in Propulsion
Hanson, R. K., Mattison, D. W., Ma, L., Davidson, D. F., Sanders, S. T.
edited by Roy, G. D.
Elsevier.
2005
: 365–376
View details for
DOI 10.1016/B978-012369394-5/50038-X
A Pulsed Detonation Tube with a Converging-Diverging Nozzle Operating at Different Pressure Ratios
43rd AIAA Aerospace Sciences Meeting and Exhibit
Barbour, E. A., Hanson, R. K., Morris, C. I., Radulescu, M. I.
2005
View details for
DOI 10.2514/6.2005-1307
Aeroengine Mass Flux Sensor Based on Laser Absorption Measurements of Oxygen Velocity and Density
41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
Lyle, K., Jeffries, J. B., Hanson, R. K., Winter, M. M.
2005
View details for
DOI 10.2514/6.2005-3784
Quantitative Temperature Measurements in High-Pressure Flames with Multi-Line NO-LIF Thermometer
Joint Meeting of U.S. Sections of Combustion Institute
Lee, T., Bessler, W., Kronemayer, H., Schulz, C., Jeffries, J. B., Hanson, R. K.
2005
Shock tube measurements and modeling of ignition delay time in lean iso-octane/air
25th International Symposium on Shock Waves
Vasu, S. S., Davidson, D. F., Hanson, R. K.
2005
Real-time Measurements of C2H4 Concentration with Application to PDEs Operating on Oxygen and Air
41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
Barbour, E. A., Ma, L., Jeffries, J. B., Hanson, R. K., Brophy, C., Sinibaldi, J.
2005
View details for
DOI 10.2514/6.2005-4376
Tunable Diode-Laser Temperature Sensor for Evaluation of a Valveless Pulse Detonation Engine
43rd AIAA Aerospace Sciences Meeting and Exhibit
Mattison, D. W., Liu, J. T., Jeffries, J. B., Hanson, R. K., Brophy, C. M., Sinibaldi, J. O.
2005
View details for
DOI 10.2514/6.2005-224
Tunable Diode Laser Sensors for Harsh Combustion Environments with Applications to Pulse Detonation Engines and Internal Combustion Engines
Joint Meeting of U.S. Sections of Combustion Institute
Mattison, D. W., Jeffries, J. B., Hanson, R. K.
2005
Rapid Measurements of Gas Temperature in a Swirl-Stabilized Flame
Joint Meeting of U.S. Sections of Combustion Institute
Zhou, X., Jeffries, J. B., Hanson, R. K., Lu, Q., Gutmark, E. J.
2005
High-Temperature Measurements of the Rates of the Reactions CH2O+M= Products and CH2O+O2= Products
WSS/CI Fall Meeting
Davidson, D. F., Hanson, R. K., Bowman, C. T., Golden, D. M.
2005
Unsteady Nozzle Design for Pulse Detonation Engines
41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
Owens, Z. K., Hanson, R. K.
2005
View details for
DOI 10.2514/6.2005-3649
High Temperature Measurements of the Reactions of OH with Toluene and Acetone
25th Int. Symp. on Shock Waves
Vasudevan, V., Davidson, D. F., Hanson, R. K.
2005
Shock Tube Measurements of Water and n-Dodecane Droplet Evaporation behind Shock Waves
43rd AIAA Aerospace Sciences Meeting and Exhibit
Hanson, T. C., Davidson, D. F., Hanson, R. K.
2005
View details for
DOI 10.2514/6.2005-350
High Temperature Measurements of Elementary OH Radical Reactions
Joint Meeting of U.S. Sections of Combustion Institute
Vasudevan, V., Davidson, D. F., Hanson, R. K.
2005
Experimental Study of H2O Spectroscopic Parameters in the Near-IR
43rd AIAA Aerospace Sciences Meeting and Exhibit
Liu, X., Zhou, X., Jeffries, J. B., Hanson, R. K.
2005
View details for
DOI 10.2514/6.2005-829
Advances in Diode Laser Sensors for Combustion and Propulsion
WSS/CI Fall Meeting
Hanson, R. K., Jeffries, J. B.
2005
Characterization of the Fuel Fill Process in a Multi-cycle Pulse Detonation Engine using a Diode-Laser Sensor
41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
Ma, L., Jeffries, J. B., Hanson, R. K., Hinckley, K. M., Pinard, P. F., Dean, A. J.
2005
View details for
DOI 10.2514/6.2005-3834
Tunable Diode Laser Absorption Sensor Applications to Aeropropulsion Testing
NATO Applied Vehicle Technology Meeting
Hanson, R. K., Jeffries, J. B., Allen, M. G.
2005
Methyl Concentration Time Histories during iso-Octane and n-Heptane Oxidation
WSS/CI Fall Meeting
Davidson, D. F., Oehlschlaeger, M. A., Hanson, R. K.
2005
Temperature Measurement using Ultraviolet Absorption of Carbon Dioxide behind Shock Waves
Applied Optics
Oehlschlaeger, M. A., Davidson, D. F., Hanson, R. K.
2005
44 (31)
: 6599-6605
View details for
DOI 10.1364/AO.44.006599
Diode Laser Sensor for Gas Temperature and H2O Concentration in a Scramjet Combustor Using Wavelength Modulation Spectroscopy
41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
Rieker, G. B., Liu, J. T., Jeffries, J. B., Hanson, R. K., Mathur, T., Gruber, M. R., Carter, C.
2005
View details for
DOI 10.2514/6.2005-3710
High-temperature ethane and propane decomposition
30th International Symposium on Combustion
Oehlschlaeger, M. A., Davidson, D. F., Hanson, R. K.
ELSEVIER SCIENCE INC.
2005
: 1119–1127
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DOI 10.1016/j.proci.2004.07.032
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Web of Science ID 000229944200120
Evaluation of pulse detonation engine modeling using laser-based temperature and OH concentration measurements
30th International Symposium on Combustion
Mattison, D. W., Oehischlaeger, M. A., Morris, C. I., Owens, Z. C., Barbour, E. A., Jeffries, J. B., Hanson, R. K.
ELSEVIER SCIENCE INC.
2005
: 2799–2807
View details for
DOI 10.1016/j.proci.2004.08.026
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Web of Science ID 000229944300123
Carbon dioxide thermal decomposition: Observation of incubation
ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS
Oehlschlaeger, M. A., Davidson, D. F., Jeffries, J. B., Hanson, R. K.
2005
219 (5)
: 555-567
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Web of Science ID 000229077400003
Predicting LIF signal strength for toluene and 3-pentanone under engine-related temperature and pressure conditions
30th International Symposium on Combustion
Koban, W., Koch, J. D., Sick, V., Wermuth, N., Hanson, R. K., Schulz, C.
ELSEVIER SCIENCE INC.
2005
: 1545–1553
View details for
DOI 10.1016/j.proci.2004.08.119
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Web of Science ID 000229944200168
Oxygen quenching of toluene fluorescence at elevated temperatures
APPLIED PHYSICS B-LASERS AND OPTICS
Koban, W., Koch, J. D., Hanson, R. K., Schulz, C.
2005
80 (6)
: 777-784
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DOI 10.1007/s00340-005-1769-6
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Web of Science ID 000228861000022
The reaction of CH3+O-2: experimental determination of the rate coefficients for the product channels at high temperatures
30th International Symposium on Combustion
Herbon, J. T., Hanson, R. K., Bowman, C. T., GOLDEN, D. M.
ELSEVIER SCIENCE INC.
2005
: 955–963
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DOI 10.1016/j.proci.2004.08.094
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Web of Science ID 000229944200102
The ignition mechanism in irregular structure gaseous detonations
30th International Symposium on Combustion
Radulescu, M. I., Sharpe, G. J., Lee, J. H., Kiyanda, C. B., Higgins, A. J., Hanson, R. K.
ELSEVIER SCIENCE INC.
2005
: 1859–1867
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DOI 10.1016/j.proci.2004.08.047
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Web of Science ID 000229944300018
Shock tube measurements of toluene ignition times and OH concentration time histories
30th International Symposium on Combustion
Vasudevan, V., Davidson, D. F., Hanson, R. K.
ELSEVIER SCIENCE INC.
2005
: 1155–1163
View details for
DOI 10.1016/j.proci.2004.07.039
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Web of Science ID 000229944200124
Shock tube ignition measurements of iso-octane/air and toluene/air at high pressures
30th International Symposium on Combustion
Davidson, D. F., Gauthier, B. M., Hanson, R. K.
ELSEVIER SCIENCE INC.
2005
: 1175–1182
View details for
DOI 10.1016/j.proci.2004.08.004
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Web of Science ID 000229944200126
UV absorption of CO2 for temperature diagnostics of hydrocarbon combustion applications
30th International Symposium on Combustion
Jeffries, J. B., Schulz, C., Mattison, D. W., Oehlschlaeger, M. A., Bessler, W. G., Lee, T., Davidson, D. F., Hanson, R. K.
ELSEVIER SCIENCE INC.
2005
: 1591–1599
View details for
DOI 10.1016/j.proci.2004.08.009
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Web of Science ID 000229944200173
Large-modulation-depth 2f spectroscopy with diode lasers for rapid temperature and species measurements in gases with blended and broadened spectra
APPLIED OPTICS
Liu, J. T., Jeffries, J. B., Hanson, R. K.
2004
43 (35)
: 6500-6509
Abstract
A method that uses tunable diode lasers is developed for rapid temperature and concentration measurements of gases with highly broadened and congested spectra. Wavelength modulation absorption spectroscopy with 2f detection is utilized, because this derivative method offers benefits in dealing with blended spectral features. The 2f signal depends critically on the modulation depth of the laser alpha, which is increased to values above those typically achieved when wavelength modulation spectroscopy with diode lasers is performed. The 2f method with large modulation depths is validated by using near-IR diode lasers to probe pressure-broadened water-vapor features in the 1.4-microm region over a range of temperatures from 296 to 800 K and at pressures as high as 20 atm. Modulation depths as high as alpha = 0.8 cm(-1) are attained at modulation frequencies of 50 kHz and measurement bandwidths of 15 kHz. Comparisons of experimental results with 2f simulations, based on the HITRAN spectral database, provide confirmation of the capability of this method for rapid measurements of gas temperature and species concentration.
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Web of Science ID 000225661400018
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PubMedID 15617289
Shock tube determination of ignition delay times in full-blend and surrogate fuel mixtures
COMBUSTION AND FLAME
Gauthier, B. M., Davidson, D. F., Hanson, R. K.
2004
139 (4)
: 300-311
View details for
DOI 10.1016/j.combustflame.2004.08.015
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Web of Science ID 000225892700003
Ultraviolet absorption cross-sections of hot carbon dioxide
CHEMICAL PHYSICS LETTERS
Oehlschlaeger, M. A., Davidson, D. F., Jeffries, J. B., Hanson, R. K.
2004
399 (4-6)
: 490-495
View details for
DOI 10.1016/j.cplett.2004.10.060
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Web of Science ID 000225389800037
Rayleigh-calibrated fluorescence quantum yield measurements of acetone and 3-pentanone
APPLIED OPTICS
Koch, J. D., Hanson, R. K., Koban, W., Schulz, C.
2004
43 (31)
: 5901-5910
Abstract
We measured fluorescence quantum yields of acetone and 3-pentanone as a pure gas and with nitrogen diluent at room temperature at 20, 507, and 1013 mbar using 248, 266, and 308 nm excitation by calibrating the optical collection system with Rayleigh scattering from nitrogen. At 20 mbar with 308-nm excitation, the fluorescence quantum yields for acetone and 3-pentanone are 7 +/- 1 x 10(-4) and 1.1 +/- 0.2 x 10(-3), respectively, and each decreases with decreasing excitation wavelength. These directly measured values are significantly lower than earlier ones that were based on a chain of relative measurements. The observed pressure and excitation wavelength dependence is in qualitative agreement with a previously developed fluorescence quantum yield model, but the absolute numbers disagree. Changing acetone's fluorescence rate constant to 3 x 10(5) s(-1) from its previous value of 8 x 10(5) s(-1) resulted in good agreement between our measurements and the model.
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Web of Science ID 000224779900020
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PubMedID 15540449
Near-infrared diode laser hydrogen fluoride monitor for dielectric etch
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
Xu, N., Pirkle, D. R., Jeffries, J. B., McMillin, B., Hanson, R. K.
2004
22 (6)
: 2479-2486
View details for
DOI 10.1116/1.1809124
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Web of Science ID 000225505900045
Mixing efficiency measurements using a modified cold chemistry technique
EXPERIMENTS IN FLUIDS
Rossmann, T., Mungal, M. G., Hanson, R. K.
2004
37 (4)
: 566-576
View details for
DOI 10.1007/s00348-004-0851-x
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Web of Science ID 000224516100010
Interpreting shock tube ignition data
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
Davidson, D. F., Hanson, R. K.
2004
36 (9)
: 510-523
View details for
DOI 10.1002/kin.20024
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Web of Science ID 000223297200006
Comment on "analytical model for the impulse of single-cycle pulse detonation tube"
JOURNAL OF PROPULSION AND POWER
Radulescu, M. I., Hanson, R. K.
2004
20 (5)
: 956-957
View details for
Web of Science ID 000223932600025
UV planar laser induced fluorescence imaging of hot carbon dioxide in a high-pressure flame
APPLIED PHYSICS B-LASERS AND OPTICS
Lee, T., Bessler, W. G., Schulz, C., Patel, M., Jeffries, J. B., Hanson, R. K.
2004
79 (4)
: 427-430
View details for
DOI 10.1007/s00340-004-1595-2
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Web of Science ID 000223260300006
Diode laser-induced infrared fluorescence of water vapour
MEASUREMENT SCIENCE & TECHNOLOGY
Li, H. J., Hanson, R. K., Jeffries, J. B.
2004
15 (7)
: 1285-1290
View details for
DOI 10.1088/0957-0233/15/7/009
View details for
Web of Science ID 000222765600010
Absorption and fluorescence of toluene vapor at elevated temperatures
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Koban, W., Koch, J. D., Hanson, R. K., Schulz, C.
2004
6 (11)
: 2940-2945
View details for
Web of Science ID 000222357600023
High-temperature thermal decomposition of isobutane and n-butane behind shock waves
JOURNAL OF PHYSICAL CHEMISTRY A
Oehlschlaeger, M. A., Davidson, D. F., Hanson, R. K.
2004
108 (19)
: 4247-4253
View details for
DOI 10.1021/jp0313627
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Web of Science ID 000221302900012
Validation of a thermal decomposition mechanism of formaldehyde by detection of CH2O and HCO behind shock waves
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
Friedrichs, G., Davidson, D. F., Hanson, R. K.
2004
36 (3)
: 157-169
View details for
DOI 10.1002/kin.10183
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Web of Science ID 000189245700003
Shock tube measurements of branched alkane ignition times and OH concentration time histories
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
Oehlschlaeger, M. A., Davidson, D. F., Herbon, J. T., Hanson, R. K.
2004
36 (2)
: 67-78
View details for
DOI 10.1002/kin.10173
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Web of Science ID 000188088300001
Wavelength modulation absorption spectroscopy with 2f detection using multiplexed diode lasers for rapid temperature measurements in gaseous flows
APPLIED PHYSICS B-LASERS AND OPTICS
Liu, J. T., Jeffries, J. B., Hanson, R. K.
2004
78 (3-4)
: 503-511
View details for
DOI 10.1007/s00340-003-1380-7
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Web of Science ID 000220086600042
Determination of O2, CO and H2O Concentration and Gas Temperature in a Coal-fired Utility Boiler using a Wavelength-multiplexed Tunable Diode Laser Sensor
poster at 30th Int. Combustion Symp.
Sappey, A., Howell, J., Masterson, P., Hofvander, H., Jeffries, J. B., Zhou, X., Hanson, R. K.
2004
The Effect of Wall Heat Loss on the Flow Fields in a Pulse-Detonation Wave Engine
42nd AIAA Aerospace Sciences Meeting and Exhibit
Radulescu, M. I., Morris, C. I., Hanson, R. K.,
2004
View details for
DOI 10.2514/6.2004-1124
A New Facility for the Study of Shock Wave-Induced Combustion of Liquid Fuels
42nd AIAA Aerospace Sciences Meeting and Exhibit
Kashdan, J. T., Hanson, T. C., Piper, E. L., Davidson, D. F., Hanson, R. K.
2004
View details for
DOI 10.2514/6.2004-468
Wavelength Modulation Absorption Spectroscopy with 2f Detection for Combustion Temperature Measurements Using Multiplexed Near-Infrared Diode Lasers
42nd AIAA Aerospace Sciences Meeting and Exhibit
Liu, J. T., Jeffries, J. B., Hanson, R. K.
2004
View details for
DOI 10.2514/6.2004-647
A Shock Tube Study of the Oxidation of 1,3-Butadiene
42nd AIAA Aerospace Sciences Meeting and Exhibit
Libby, C. S., Davidson, D. F., Hanson, R. K.
2004
View details for
DOI 10.2514/6.2004-1322
Carbon Dioxide UV Laser-Induced Fluorescence Imaging in High-Pressure Flames
42nd AIAA Aerospace Sciences Meeting and Exhibit
Lee, T., Jeffries, J. B., Hanson, R. K., Bessler, W. G., Schulz, C.
2004
View details for
DOI 10.2514/6.2004-386
Advances in Laser-Based Sensors for Propulsion Systems
24th AIAA Aerodynamic Measurement Technology and Ground Testing Conference
Hanson, R. K., Jeffries, J. B.
2004
View details for
DOI 10.2514/6.2004-2476
The Impact of Heat Transfer on PDE Performance and its Associated Flowfield
poster at 30th Int. Combustion Symp.
Barbour, E. A., Owens, Z. C., Morris, C. I., Hanson, R. K.
2004
FARLIF: Myths and Reality
poster at 30th Int. Combustion Symp.
Koban, W., Koch, J. D., Hanson, R. K., Schulz, C.
2004
Quantitative Multi-Line NO-LIF Temperature Imaging in Flames over a Wide Pressure Range
Laser Applications to Chemical, Security and Environmental Analysis
Bessler, W. G., Jeffries, J. B., Hanson, R. K.
2004
A Wavelength-Multiplexed Diode Laser Sensor for Temperature Measurements in Pulse Detonation Engines
42nd AIAA Aerospace Sciences Meeting and Exhibit
Hinckley, K. M., Jeffries, J. B., Hanson, R. K.
2004
View details for
DOI 10.2514/6.2004-713
The Impact of a Converging-Diverging Nozzle on PDE Performance and its Associated Flowfield
42nd AIAA Aerospace Sciences Meeting and Exhibit
Barbour, E. A., Owens, Z. C., Morris, C. I., Hanson, R. K.
2004
View details for
DOI 10.2514/6.2004-867
UV Absorption of CO2 for Temperature Diagnostics
Laser Applications to Chemical and Environmental Analysis
Barbour, E., Oehlsclaeger, M. A., Mattison, D. W., Davidson, F. F., Schulz, C., Jeffries, J. B., Hanson, R. K.
2004
Shock Tube Measurements of Ignition Delay Times in N-Heptane, Gasoline and Surrogate Fuel Mixtures
poster at 30th Int. Combustion Symp.
Gauthier, B. M., Davidson, D. F., Hanson, R. K.
2004
Nitric-oxide planar laser-induced fluorescence applied to low-pressure hypersonic flow fields for the imaging of mixture fraction
APPLIED OPTICS
Rossmann, T., Mungal, M. G., Hanson, R. K.
2003
42 (33)
: 6682-6695
Abstract
The scalar-field imaging of a hypersonic mixing flow is performed in a mixing facility that is shock tunnel driven. The instantaneous mixture-fraction field of a hypersonic two-dimensional mixing layer (M1 = 5.1, M2 = 0.3) is determined with a temperature-insensitive planar laser-induced fluorescence technique with nitric oxide (NO) as the tracer species. Single-shot images are obtained with the broadband excitation of a reduced temperature-sensitivity transition in the A2 sigma+ <-- X2 II(1/2) (0, 0) band of NO near 226 nm. The instantaneous mixture-fraction field at a convective Mach number of 2.64 is shown to be nearly identical to a typical diffusive process, supporting the notion of gradient-transport mixing models for highly compressible mixing layers.
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Web of Science ID 000186612400019
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PubMedID 14658473
In situ measurements of HCl during plasma etching of poly-silicon using a diode laser absorption sensor
MEASUREMENT SCIENCE & TECHNOLOGY
Kim, S., Klimecky, P., Jeffries, J. B., Terry, F. L., Hanson, R. K.
2003
14 (9)
: 1662-1670
View details for
Web of Science ID 000185699400019
Strategies for laser-induced fluorescence detection of nitric oxide in high-pressure flames. III. Comparison of A-X excitation schemes
APPLIED OPTICS
Bessler, W. G., Schulz, C., Lee, T., Jeffries, J. B., Hanson, R. K.
2003
42 (24)
: 4922-4936
Abstract
Laser-induced fluorescence (LIF) has proven a reliable technique for nitric oxide (NO) diagnostics in practical combustion systems. However, a wide variety of different excitation and detection strategies are proposed in the literature without giving clear guidelines of which strategies to use for a particular diagnostic situation. We give a brief review of the high-pressure NO LIF diagnostics literature and compare strategies for exciting selected transitions in the A-X(0, 0), (0, 1), and (0, 2) bands using a different detection bandpass. The strategies are compared in terms of NO LIF signal strength, attenuation of laser and signal light in the hot combustion gases, signal selectivity against LIF interference from O2 and CO2, and temperature and pressure sensitivity of the LIF signal. The discussion is based on spectroscopic measurements in laminar premixed methane-air flames at pressures between 1 and 60 bars and on NO and O2 LIF spectral simulations.
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Web of Science ID 000184940000019
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PubMedID 12952340
Development of a sensor for temperature and water concentration in combustion gases using a single tunable diode laser
MEASUREMENT SCIENCE & TECHNOLOGY
Zhou, X., Liu, X., Jeffries, J. B., Hanson, R. K.
2003
14 (8)
: 1459-1468
View details for
Web of Science ID 000184917300037
Carbon dioxide UV laser-induced fluorescence in high-pressure flames
CHEMICAL PHYSICS LETTERS
Bessler, W. G., Schulz, C., Lee, T., Jeffries, J. B., Hanson, R. K.
2003
375 (3-4)
: 344-349
View details for
DOI 10.1016/S0009-2614(03)00858-3
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Web of Science ID 000183966200013
Improved turbulent boundary-layer model for shock tubes
AIAA 31st Fluid Dynamics Conference
Petersen, E. L., Hanson, R. K.
AMER INST AERONAUT ASTRONAUT.
2003
: 1314–22
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Web of Science ID 000183990800011
A shock tube study of the reaction NH2+CH4 -> NH3+CH3 and comparison with transition state theory
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
Song, S. H., Golden, D. M., Hanson, R. K., Bowman, C. T., Senosiain, J. P., Musgrave, C. B., Friedrichs, G.
2003
35 (7)
: 304-309
View details for
DOI 10.1002/kin.10131
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Web of Science ID 000183601300004
Pulse detonation engine characterization and control using tunable diode-laser sensors
JOURNAL OF PROPULSION AND POWER
Mattison, D. W., Brophy, C. M., Sanders, S. T., Ma, L., Hinckley, K. M., Jeffries, J. B., Hanson, R. K.
2003
19 (4)
: 568-572
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Web of Science ID 000184193400006
Time-of-flight diode-laser velocimeter using a locally seeded atomic absorber: Application in a pulse detonation engine
23rd International Symposium on Shock Waves
Sanders, S. T., Mattison, D. W., Jeffries, J. B., Hanson, R. K.
SPRINGER.
2003
: 435–41
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DOI 10.1007/s00193-003-0182-5
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Web of Science ID 000183671200001
Strategies for laser-induced fluorescence detection of nitric oxide in high-pressure flames. II. A-X(0,1) excitation
8th Topical Meeting on Laser Applications to Chemical and Environmental Analysis (8th LACEA)
Bessler, W. G., Schulz, C., Lee, T., Jeffries, J. B., Hanson, R. K.
OPTICAL SOC AMER.
2003
: 2031–42
Abstract
A-X(0,1) excitation is a promising new approach for NO laser-induced fluorescence (LIF) diagnostics at elevated pressures and temperatures. We present what to our knowledge are the first detailed spectroscopic investigations within this excitation band using wavelength-resolved LIF measurements in premixed methane/air flames at pressures between 1 and 60 bar and a range of fuel/air ratios. Interference from O2 LIF is a significant problem in lean flames for NO LIF measurements, and pressure broadening and quenching lead to increased interference with increased pressure. Three different excitation schemes are identified that maximize NO/O2 LIF signal ratios, thereby minimizing the O2 interference. The NO LIF signal strength, interference by hot molecular oxygen, and temperature dependence of the three schemes are investigated.
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Web of Science ID 000182386600003
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PubMedID 12716143
Temperature and excitation wavelength dependencies of 3-pentanone absorption and fluorescence for PLIF applications
APPLIED PHYSICS B-LASERS AND OPTICS
Koch, J. D., Hanson, R. K.
2003
76 (3)
: 319-324
View details for
DOI 10.1007/s00340-002-1084-4
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Web of Science ID 000182758000020
Diode Laser Absorption Diagnostics for Measurements in Practical Combustion Flow Fields
39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
Liu, J. Y., Jeffries, J. B., Hanson, R. K.
2003
View details for
DOI 10.2514/6.2003-4581
UV Optical Diagnostics for PDE Applications
39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
Mattison, D. W., Barbour, E. A., Oehlschlaeger, M. A., Owens, Z. C., Hanson, R. K.
2003
View details for
DOI 10.2514/6.2003-4685
Shock Tube Measurements of Branched Alkane Ignition Times and OH Concentration Time Histories
41st Aerospace Sciences Meeting and Exhibit
Oehlschlaeger, M. A., Davidson, D. F., Herbon, J. T., Hanson, R. K.
2003
View details for
DOI 10.2514/6.2003-830
A Photophysics Model for 3-pentanone PLIF: Temperature, Pressure, and Excitation Wavelength Dependences
41st Aerospace Sciences Meeting and Exhibit
Koch, J. D., Hanson, R. K.
2003
View details for
DOI 10.2514/6.2003-403
CO Absorption Measurements with a Mid-IR Quantum Laser for Engine Exhaust Applications
41st Aerospace Sciences Meeting and Exhibit
Wehe, S., Allen, M., Liu, X., Jeffries, J. B., Hanson, R. K.
2003
View details for
DOI 10.2514/6.2003-588
Two-phase Fuel Measurements Using a Diode-laser Sensor
41st Aerospace Sciences Meeting and Exhibit
Ma, L., Jeffries, J. B., Hanson, R. K.
2003
View details for
DOI 10.2514/6.2003-401
Overview: MURI Center on spectroscopic and time domain detection of trace explosives in condensed and vapor phases
Conference on Detection and Remediation Technologies for Mines and Minelike Targets VIII
Spicer, J. B., Dagdigian, P., Osiander, R., Miragliotta, J., Zhang, X. C., Kersting, R., Crosley, D., Hanson, R., Jeffries, J.
SPIE-INT SOC OPTICAL ENGINEERING.
2003
: 1088–1094
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Web of Science ID 000186143400105
Room-temperature mid-IR lasers for on-line measurements of trace combustion generated pollutants
2nd IEEE International Conference on Sensors
Wehe, S., Allen, M., Liu, X., Jeffries, J., Hanson, R.
IEEE.
2003
: 795–800
View details for
Web of Science ID 000189435400166
UV Laser-induced Fluorescence of Carbon Dioxide in High-Pressure Flames
3rd Joint Meeting of the U.S. Sections of the Combustion Institute
Bessler, W. G., Schulz, C., Lee, T., Jeffries, J. B., Hanson, R. K.
2003
Shock Tube Measurements of Ethane, Propane and Butane Decomposition using Laser Absorption of CH3
Fall WSS/CI meeting
Oehlschlaeger, M. A., Davidson, D. F., Hanson, R. K.
2003
Quantitative NO-LIF Temperature Imaging in High-Pressure Flames
41st Aerospace Sciences Meeting and Exhibit
Lee, T., Jeffries, J. B., Hanson, R. K., Bessler, W. G., Schulz, C.
2003
View details for
DOI 10.2514/6.2003-583
Strategies for Quantitative NO Concentration and Temperature Measurements by NO LIF in High-Pressure Flames
3rd Joint Meeting of the U.S. Sections of the Combustion Institute
Bessler, W. G., Lee, T., Schulz, C., Jeffries, J. B., Hanson, R. K.
2003
Pulse Detonation Tube Characterization using Laser Absorption Spectroscopy
41st Aerospace Sciences Meeting and Exhibit
Mattison, D. W., Oehlschlaeger, M. A., Jeffries, J. B., Hanson, R. K.
2003
View details for
DOI 10.2514/6.2003-713
Propane Fuel Monitoring in Pulse Detonation Engines using a Diode-Laser Sensor
39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
Ma, L., Hinkley, K., Jeffries, J. B., Hanson, R. K.
2003
View details for
DOI 10.2514/6.2003-4684
Diode Laser Sensors for Combustion Control
41st Aerospace Sciences Meeting and Exhibit
Zhou, X., Liu, X., Jeffries, J. B., Hanson, R. K.
2003
View details for
DOI 10.2514/6.2003-1010
Detonation Studies of High-frequency-operation Pulse Detonation Engine with Air/Hydrogen
41st Aerospace Sciences Meeting and Exhibit
Zhang, F. Y., Fujiwara, T., Miyaska, T., Nakayama, E., Hattori, T., Hanson, R. K.,
2003
View details for
DOI 10.2514/6.2003-1169
A Shock Tube Study of Iso-Octane and Toluene Ignition at High Pressures
Fall 2003 WSS/CI meeting
Gauthier, B. M., Davidson, D. F., Hanson, R. K.
2003
A shock tube study of the product branching ratio of the NH2+NO reaction at high temperatures
JOURNAL OF PHYSICAL CHEMISTRY A
Song, S. H., Hanson, R. K., Bowman, C. T., GOLDEN, D. M.
2002
106 (40)
: 9233-9235
View details for
DOI 10.1021/jp020943d
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Web of Science ID 000178506700012
Quantitative NO-LIF imaging in high-pressure flames
APPLIED PHYSICS B-LASERS AND OPTICS
Bessler, W. G., Schulz, C., Lee, T., Shin, D. I., Hofmann, M., Jeffries, J. B., Wolfrum, J., Hanson, R. K.
2002
75 (1)
: 97-102
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DOI 10.1007/s00340-002-0946-0
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Web of Science ID 000178921100017
Characterization of expansion tube flows for hypervelocity combustion studies
JOURNAL OF PROPULSION AND POWER
Ben-Yakar, A., Hanson, R. K.
2002
18 (4)
: 943-952
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Web of Science ID 000176934100030
A shock tube study of benzylamine decomposition: Overall rate coefficient and heat of formation of the benzyl radical
JOURNAL OF PHYSICAL CHEMISTRY A
Song, S., GOLDEN, D. M., Hanson, R. K., Bowman, C. T.
2002
106 (25)
: 6094-6098
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DOI 10.1021/jp0200851
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Web of Science ID 000176356400017
Strategies for laser-induced fluorescence detection of nitric oxide in high-pressure flames. I. A-X(0,0) excitation
APPLIED OPTICS
Bessler, W. G., Schulz, C., Lee, T., Jeffries, J. B., Hanson, R. K.
2002
41 (18)
: 3547-3557
Abstract
Three different high-pressure flame measurement strategies for NO laser-induced fluorescence (LIF) with A-X(0,0) excitation have been studied previously with computational simulations and experiments in flames up to 15 bars. Interference from O2 LIF is a significant problem in lean flames for NO LIF measurements, and pressure broadening and quenching lead to increased interference with increased pressure. We investigate the NO LIF signal strength, interference by hot molecular oxygen, and temperature dependence of the three previous schemes and for two newly chosen excitation schemes with wavelength-resolved LIF measurements in premixed methane and air flames at pressures between 1 and 60 bars and a range of fuel/air ratios. In slightly lean flames with an equivalence ratio of 0.83 at 60 bars, the contribution of O2 LIF to the NO LIF signal varies between 8% and 29% for the previous schemes. The O2 interference is best suppressed with excitation at 226.03 nm.
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Web of Science ID 000176274200009
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PubMedID 12078680
Wavelength-agile diode-laser sensing strategies for monitoring gas properties in optically harsh flows: application in cesium-seeded pulse detonation engine
OPTICS EXPRESS
Sanders, S. T., Mattison, D. W., Ma, L., Jeffries, J. B., Hanson, R. K.
2002
10 (12)
: 505-514
Abstract
The rapid, broad wavelength scanning capabilities of advanced diode lasers allow extension of traditional diode-laser absorption techniques to high pressure, transient, and generally hostile environments. Here, we demonstrate this extension by applying a vertical cavity surface-emitting laser (VCSEL) to monitor gas temperature and pressure in a pulse detonation engine (PDE). Using aggressive injection current modulation, the VCSEL is scanned through a 10 cm-1 spectral window at megahertz rates - roughly 10 times the scanning range and 1000 times the scanning rate of a conventional diode laser. The VCSEL probes absorption lineshapes of the ~ 852 nm D2 transition of atomic Cs, seeded at ~ 5 ppm into the feedstock gases of a PDE. Using these lineshapes, detonated-gas temperature and pressure histories, spanning 2000 - 4000 K and 0.5 - 30 atm, respectively, are recorded with microsecond time response. The increasing availability of wavelength-agile diode lasers should support the development of similar sensors for other harsh flows, using other absorbers such as native H2O.
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DOI 10.1364/OE.10.000505
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Web of Science ID 000176231400003
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PubMedID 19436388
Ultra-fast-framing schlieren system for studies of the time evolution of jets in supersonic crossflows
EXPERIMENTS IN FLUIDS
Ben-Yakar, A., Hanson, R. K.
2002
32 (6)
: 652-666
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DOI 10.1007/s00348-002-0405-z
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Web of Science ID 000180388300007
Direct measurements of the reaction H+CH2O -> H-2+HCO behind shock waves by means of Vis-UV detection of formaldehyde
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
Friedrichs, G., Davidson, D. F., Hanson, R. K.
2002
34 (6)
: 374-386
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Web of Science ID 000175876100006
Ultraviolet absorption spectra of shock-heated carbon dioxide and water between 900 and 3050 K
CHEMICAL PHYSICS LETTERS
Schulz, C., Koch, J. D., Davidson, D. F., Jeffries, J. B., Hanson, R. K.
2002
355 (1-2)
: 82-88
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Web of Science ID 000174847500014
High-sensitivity absorption diagnostic for NO2 using a blue diode laser
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Liu, J. T., Hanson, R. K., Jeffries, J. B.
2002
72 (5)
: 655-664
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Web of Science ID 000173480300008
Study of the high-temperature autoignition of n-alkane/O-2/Ar mixtures
JOURNAL OF PROPULSION AND POWER
Horning, D. C., Davidson, D. F., Hanson, R. K.
2002
18 (2)
: 363-371
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Web of Science ID 000174487300019
Linear excitation schemes for IR planar-induced fluorescence imaging of CO and CO2
APPLIED OPTICS
Kirby, B. J., Hanson, R. K.
2002
41 (6)
: 1190-1201
Abstract
A detailed discussion of linear excitation schemes for IR planar-induced fluorescence (PLIF) imaging of CO and CO2 is presented. These excitation schemes are designed to avoid laser scattering, absorption interferences, and background luminosity while an easily interpreted PLIF signal is generated. The output of a tunable optical parametric amplifier excites combination or overtone transitions in these species, and InSb IR cameras collect fluorescence from fundamental transitions. An analysis of the dynamics of pulsed laser excitation demonstrates that rotational energy transfer is prominent; hence the excitation remains in the linear regime, and standard PLIF postprocessing techniques may be used to correct for laser sheet inhomogeneities. Analysis of the vibrational energy-transfer processes for CO show that microsecond-scale integration times effectively freeze the vibrational populations, and the fluorescence quantum yield following nanosecond-pulse excitation can be made nearly independent of the collisional environment. Sensitivity calculations show that the single-shot imaging of nascent CO in flames is possible. Signal interpretation for CO2 is more complicated, owing to strongly temperature-dependent absorption cross sections and strongly collider-dependent fluorescence quantum yield. These complications limit linear CO2 IR PLIF imaging schemes to qualitative visualization but indicate that increased signal level and improved quantitative accuracy can be achieved through consideration of laser-saturated excitation schemes.
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Web of Science ID 000173934400032
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PubMedID 11900144
Evolution and growth of large-scale structures in high compressibility mixing layers
JOURNAL OF TURBULENCE
Rossmann, T., Mungal, M. G., Hanson, R. K.
2002
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Web of Science ID 000174238400001
Quantitative detection of HCO behind shock waves: The thermal decomposition of HCO
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Friedrichs, G., Herbon, J. T., Davidson, D. F., Hanson, R. K.
2002
4 (23)
: 5778-5788
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DOI 10.1039/b205692e
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Web of Science ID 000179237500011
Laser-induced fluorescence detection of no in high-pressure flames with A-X(0,0), (0,1), and (0,2) excitation
40th AIAA Aerospace Sciences Meeting & Exhibit
Lee, T., Shin, D., Jeffries, J. B., Hanson, R. K., Bessler, W. G., Schulz, C.
2002
View details for
DOI 10.2514/6.2002-399
Character of Mach Wave Radiation and Convection Velocity Estimation in Supersonic Shear Layers
8th AIAA/CEAS Aeroacoustics Conference & Exhibit
Rossmann, T., Mungal, M. G., Hanson, R. K.
2002
View details for
DOI 10.2514/6.2002-2571
Scanned wavelength diode-laser sensors for harsh environments
Conference on Diode Lasers and Applications in Atmospheric Sensing
Jeffries, J. B., Sanders, S. T., Zhou, X., Ma, L., Mattison, D. W., Hanson, R. K.
SPIE-INT SOC OPTICAL ENGINEERING.
2002
: 88–95
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Web of Science ID 000178711700009
Impact of UV absorption by CO2 and H2O on NO LIF in high-pressure combustion applications
29th International Combustion Symposium
Schulz, C., Jeffries, J. B., Davidson, D. F., Koch, J. D., Wolfrum, J., Hanson, R. K.
ELSEVIER SCIENCE INC.
2002
: 2735–2742
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Web of Science ID 000182866500160
Monitoring and control of a pulse detonation engine using a diode-laser fuel concentration and temperature sensor
29th International Combustion Symposium
Ma, L., Sanders, S. T., Jeffries, J. B., Hanson, R. K.
ELSEVIER SCIENCE INC.
2002
: 161–166
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Web of Science ID 000182866100021
Diode laser sensor to monitor HCl in a plasma etch reactor
Conference on Diode Lasers and Applications in Atmospheric Sensing
Kim, S., Klimecky, P., Chou, S. I., Jeffries, J. B., Terry, F. L., Hanson, R. K.
SPIE-INT SOC OPTICAL ENGINEERING.
2002
: 129–136
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Web of Science ID 000178711700013
Sensors for high-pressure, harsh combustion environments using wavelength-agile diode lasers
29th International Combustion Symposium
Sanders, S. T., Mattison, D. W., Jeffries, J. B., Hanson, R. K.
ELSEVIER SCIENCE INC.
2002
: 2661–2667
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Web of Science ID 000182866500151
A shock tube study of the enthalpy of formation of OH
29th International Combustion Symposium
Herbon, J. T., Hanson, R. K., GOLDEN, D. M., Bowman, C. T.
ELSEVIER SCIENCE INC.
2002
: 1201–1208
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Web of Science ID 000182866100145
A shock tube study of the NH2+NO2 reaction
29th International Combustion Symposium
Song, S., GOLDEN, D. M., Hanson, R. K., Bowman, C. T.
ELSEVIER SCIENCE INC.
2002
: 2163–2170
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Web of Science ID 000182866500090
Combustion Temperature and H2O Concentration Sensor using a Single Diode Laser
40th AIAA Aerospace Sciences Meeting & Exhibit
Zhou, X., Sanders, S. T., Jeffries, J. B., Hanson, R. K., Jenkins, T. P.
2002
View details for
DOI 10.2514/6.2002-395
Laser-based Diagnostics and Scalar Imaging in High Compressibility Shear Layers
11th International Symposium on Applications of Laser Techniques to Fluid Mechanics
Rossmann, T., Mungal, M. G., Hanson, R. K.
2002
Diode-Laser Sensors for Pulse Detonation Engine Applications
40th AIAA Aerospace Sciences Meeting & Exhibit
Mattison, D. W., Sanders, S. T., Hinckley, K. M., Brophy, C. M., Jeffries, J. B., Hanson, R. K.
2002
View details for
DOI 10.2514/6.2002-471
Quantitative NO-LIF Imaging in High-Pressure Flames
in Optical and Laser Diagnostics, (Inst. of Physics, Bristol, PA, 2003), presented at 1st Int. Conf. on Optical and Laser Diagnostics (ICOLAD)
Bessler, W., G., Schulz, C., Lee, T., Shin, D., I., Hofmann, M., Jeffries, J., B., Hanson, R. K.
City University, London.
2002
: 107–114
Wavelength-Agile Diode Laser Sensors for Monitoring Gas Properties in Harsh Environments
Laser Applications to Chemical and Environmental Analysis
Sanders, S. T., Jeffries, J. B., Wang, J., Hanson, R. K.
2002
View details for
DOI 10.1364/LACEA.2002.SuB2
Quantitative Temperature Imaging using NO-LIF in Flames at Elevated Pressures (1-60 bar)
6th Int. Workshop on Measurement and Computation for Turbulent Non-premixed Flames
Bessler, W. G., Schulz, C., Lee, T., Shin, D., Jeffries, J. B., Hanson, R. K.
2002
3-Pentanone Photophysics for PLIF Applications: Temperature Dependences and Limitations
Spring meeting of WSS/CI
Koch, J. D., Hanson, R. K.
2002
Strategies for NO Laser-Induced Fluorescence in Methane-Air Flames at Pressures between 1 and 60 bar
Laser Applications to Chemical and Environmental Analysis
Bessler, W. G., Schulz, C., Shin, D., Lee, T., Jeffries, J. B., Hanson, R. K.
2002
View details for
DOI 10.1364/LACEA.2002.FB4
Laser-based Fuel Diagnostics for Sensing and Control in Pulse Detonation Engines
40th AIAA Aerospace Sciences Meeting & Exhibit
Ma, L., Sanders, S. T., Hanson, R. K.
2002
View details for
DOI 10.2514/6.2002-609
Tunable Diode Laser Sensing and Combustion Control
Applied Combustion Diagnostics
Allen, M. G., Furlong, E. R., Hanson, R. K.
edited by Kohse-Höinghaus, K., Jeffries, J. B.
Taylor and Francis, NY.
2002
: 479–798
Characterization of Fuel Loading in Combustion Systems using Diode-Laser Sensors
Spring meeting of WSS/CI
Ma, L., Sanders, S. T., Jeffries, J. B., Romo, E. A., Hanson, R. K.
2002
Laser Diagnostics for Combustion and Propulsion
Distinguished Lecture Series
Hanson, R. K.
2002
Temperature-Dependent Absorption by CO2: Implications for UV Diagnostics in High-Temperature Flames
Laser Applications to Chemical and Environmental Analysis
Schulz, C., Gronki, J., Koch, J. D., Davidson, D. F., Jeffries, J. B., Hanson, R. K.
2002
View details for
DOI 10.1364/LACEA.2002.FC2
Advanced Laser Diagnostics for Reactive Flows
40th AIAA Aerospace Sciences Meeting & Exhibit
Hanson, R. K.
2002
View details for
DOI 10.2514/6.2002-196
Shock tube measurements of iso-octane ignition times and OH concentration time histories
29th International Combustion Symposium
Davidson, D. F., Oehlschlaeger, M. A., Herbon, J. T., Hanson, R. K.
ELSEVIER SCIENCE INC.
2002
: 1295–1301
View details for
Web of Science ID 000182866100155
CO2 imaging with saturated planar laser-induced vibrational fluorescence
APPLIED OPTICS
Kirby, B. J., Hanson, R. K.
2001
40 (33)
: 6136-6144
Abstract
We present new vibrational (infrared) planar laser-induced fluorescence (PLIF) imaging techniques for CO(2) that use a simple, inexpensive, high-pulse-energy transversely excited atmospheric CO(2) laser to saturate a CO(2) absorption transition at 10.6 mum. Strong excitation by use of a CO(2) laser provides increased signal levels at flame temperatures and simplifies image interpretation. Because rotational energy transfer and intramodal vibrational energy transfer are fast, vibrational distributions can be approximated by use of a simple three-temperature model. Imaging results from a 425 K unsteady transverse CO(2) jet and a laminar coflowing CO/H(2) diffusion flame with temperatures near 1500 K are presented. If needed, temperature-insensitive signal levels can be generated with a two-laser technique. These results illustrate the potential for saturated infrared PLIF in a variety of flows.
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Web of Science ID 000172242900021
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PubMedID 18364913
Soot pyrometry using modulated absorption/emission
COMBUSTION AND FLAME
Jenkins, T. P., Hanson, R. K.
2001
126 (3)
: 1669-1679
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Web of Science ID 000171303300006
Cavity flame-holders for ignition and flame stabilization in scramjets: An overview
AIAA/ASME/SAE/ASEE 34th Joint Propulsion Conference and Exhibit
Ben-Yakar, A., Hanson, R. K.
AMER INST AERONAUT ASTRONAUT.
2001
: 869–77
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Web of Science ID 000169952700016
HBr concentration and temperature measurements in a plasma etch reactor using diode laser absorption spectroscopy
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
Chou, S. I., Baer, D. S., Hanson, R. K., Collison, W. Z., Ni, T. Q.
2001
19 (2)
: 477-484
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Web of Science ID 000167591600015
High Compressibility Mixing Layer Studies in a Shock Tunnel Driven Facility
23rd Int. Symp.on Shock Waves
Rossmann, T., Mungal, M. G., Hanson, R. K.
2001
Mixing Efficiency and Mean Temperature Measurements in a High Compressibility Mixing Layer
54th Annual Meeting of the Division of Fluid Dynamics
Rossmann, T., Mungal, M. G., Hanson, R. K.
2001
Multiplexed diode-laser absorption sensors for aeropropulsion flows
39th Aerospace Sciences Meeting and Exhibit
Sanders, S. T., Mattison, D. W., Muruganandam, T. M., Hanson, R. K.
2001
View details for
DOI 10.2514/6.2001-412
"Measurement Techniques and Diagnostics: 5.2 Spectroscopic Diagnostics" in Handbook of Shock Waves
Davidson, D. F., Hanson, R. K.
edited by Ben-Dor, G., Igra, O., Elperin, T.
2001
View details for
DOI 10.1016/B978-012086430-0/50018-X
An improved turbulent boundary-layer model for shock tubes
15th AIAA Computational Fluid Dynamics Conference
Petersen, E. L., Hanson, R. K.
2001
View details for
DOI 10.2514/6.2001-2855
Simultaneous imaging of temperature and mole fraction using acetone planar laser-induced fluorescence
EXPERIMENTS IN FLUIDS
Thurber, M. C., Hanson, R. K.
2001
30 (1)
: 93-101
View details for
Web of Science ID 000166416900013
Nonideal effects behind reflected shock waves in a high-pressure shock tube
SHOCK WAVES
Petersen, E. L., Hanson, R. K.
2001
10 (6)
: 405-420
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Web of Science ID 000166514500002
Infrared Overtone Spectroscopy Measurements of Ammonia and Carbon Dioxide in the Effluent of a Biological Water Processor
31st International Conference On Environmental Systems
Claps, R., Leleux, D., Englich, F. V., Tittel, F. K., Webber, M. E., Jeffries, J. B., Hanson, R. K., Graf, J. C., Vega, L. M.
2001
View details for
DOI 10.4271/2001-01-2159
Ignition Time Correlations for n-Alkane/O2/Ar Mixtures
23rd Symp. (Int.) on Shock Waves
Horning, D. C., Davidson, D. F., Hanson, R. K.
2001
Diode-laser absorption sensor for line-of-sight gas temperature distributions
Applied Optics
Sanders, S. T., Wang, J., Jeffries, J. B., Hanson, R. K.
2001
40 (24)
: 4404-4415
View details for
DOI 10.1364/AO.40.004404
Laser Induced Fluorescence Detection of Nitric Oxide in High-pressure Flames with A-X (0,1) Excitation
Joint Meeting of Combustion Institute
Bessler, W. G., Schulz, C., Lee, T., Jeffries, J. B., Hanson, R. K.
2001
The Decomposition Products of JP-10
37th Joint Propulsion Conference and Exhibit
Davidson, D. F., Horning, D. C., Oehlschlaeger, M. A., Hanson, R. K.
2001
View details for
DOI 10.2514/6.2001-3707
Diode Laser Sensors for Detonation Flows
23rd Symp. (Int.) on Shock Waves
Sanders, S. T., Thurichengode, M. M., Mattison, D. W., Hanson, R. K.
2001
Advanced Laser Diagnostics for Reactive Flows
invited plenary lecture, Int. Conf. on Dynamics of Explosions and Reactive Systems
Hanson, R. K.
2001
Measurements of NH3 and CO2 with Distributed-Feedback Diode Lasers Near 2.0 m in Bioreactor Vent Gases
Applied Optics
Webber, M. E., Claps, R., Englich, F. W., Tittel, F. K., Jeffries, J. B., Hanson, R. K.
2001
40
: 4395-4403
View details for
DOI 10.1364/AO.40.004395
Shock Tube Determination of the Overall Ratio of NH2 and NO Products in the Thermal DeNox Temperature Window
Joint Meeting of Combustion Institute
Song, S., Bowman, C. T., Hanson, R. K., Golden, D. M.
2001
Ketone Photophysics for Quantitative PLIF Imaging
39th Aerospace Sciences Meeting and Exhibit
Koch, J. D., Hanson, R. K.
2001
View details for
DOI 10.2514/6.2001-413
Diode-Laser Sensors for Pulse Detonation Engines
Joint Meeting of Combustion Institute
Sanders, S. T., Mattison, D. W., Ma, L., Hanson, R. K.
2001
Shock Tube Study of the High-Temperature Thermal Decomposition of n-Alkanes
23rd Symp. (Int.) on Shock Waves
Horning, D. C., Davidson, D. F., Hanson, R. K.
2001
Measurements of Reflected Shock Bifurcation in a High-Pressure Shock Tube
23rd Int. Symp.on Shock Waves
Petersen, E. L., Hanson, R. K.
2001
Diode Lasers for Combustion Sensing and Control
invited plenary lecture, Int. Conf. on Tunable Diode Laser Spectroscopy
Hanson, R. K.
2001
Rapid Temperature-Tuning of a 1.4 μm Diode Laser with Application to High Pressure H2O Absorption Spectroscopy
Optics Letters
Sanders, S. T., Mattison, D. W., Jeffries, J. B., Hanson, R. K.
2001
26 (20)
: 1568-1570
View details for
DOI 10.1364/OL.26.001568
Oxygen Measurements at High Pressures using Vertical Cavity Surface-Emitting Lasers
Applied Physics B
Wang, J., Sanders, S. T., Jeffries, J. B., Hanson, R. K.
2001
72 (7)
: 865-872
View details for
DOI 10.1007/s003400100539
In situ combustion measurements of CO2 by use of a distributed-feedback diode-laser sensor near 2.0 µm
Applied Optics
Webber, M. E., Kim, S., Sanders, S. T., Baer, D. S., Hanson, R. K., Ikeda, Y.
2001
40 (6)
: 821-828
View details for
DOI 10.1364/AO.40.000821
Ammonia monitoring near 1.5 µm with diode-laser absorption sensors
Applied Optics
Webber, M. E., Baer, D. S., Hanson, R. K.
2001
40 (12)
: 2031-2042
View details for
DOI 10.1364/AO.40.002031
Measurements of Collision-Shift in Absorption Transitions of the A-X (0,0) Band Using a Shock Tube
23rd Symp. (Int.) on Shock Waves
Herbon, J. T., Hanson, R. K.
2001
Shock Tube Determination of the Overall Rate of NH2 + NO => Products in the Thermal De-NOx Temperature Window
International Journal of Chemical Kinetics
Song, S., Hanson, R. K., Bowman, C. T., Golden, D. M.
2001
33 (11)
: 715-721
View details for
DOI 10.1002/kin.1068
OH concentration time histories in n-alkane oxidation
International Journal of Chemical Kinetics
Davidson, D. F., Herbon, J. T., Horning, D. C., Hanson, R. K.
2001
33 (12)
: 775–783
View details for
DOI 10.1002/kin.10000
Experimental Study and Modeling of the Reaction H + O2 + M => HO2+ M (M = Ar, N2, H2O) at Elevated Pressures and Temperatures between 1050 and 1200K
Physical Chemistry Chemical Physics
Bates, R. W., Golden, D. M., Hanson, R. K., Bowman, C. T.
2001
3 (12)
: 2337-2342
View details for
DOI 10.1039/b010002l
Acetone PLIF and Schlieren Imaging of High Compressibility Mixing Layers
39th Aerospace Sciences Meeting and Exhibit
Rossmann, T., Mungal, M. G., Hanson, R. K.
2001
View details for
DOI 10.2514/6.2001-290
Tunable Diode Laser Sensing for Combustion Monitoring and Control
invited plenary lecture, Joint International Combustion Symposium
Hanson, R. K.
2001
A potential remote sensor of CO in vehicle exhausts using 2.3 mu m diode lasers
MEASUREMENT SCIENCE & TECHNOLOGY
Wang, J., Maiorov, M., Jeffries, J. B., Garbuzov, D. Z., Connolly, J. C., Hanson, R. K.
2000
11 (11)
: 1576-1584
View details for
Web of Science ID 000165366000007
Multiplexed continuous-wave diode-laser cavity ringdown measurements of multiple species
APPLIED OPTICS
Totschnig, G., Baer, D. S., Wang, J., Winter, F., Hofbauer, H., Hanson, R. K.
2000
39 (12)
: 2009-2016
Abstract
Rapid cavity ringdown measurements of multiple broadband absorbing species (methanol and isopropanol) in gas mixtures have been recorded with two multiplexed continuous-wave distributed-feedback diode lasers operating near 1.4 mum. A measurement sensitivity of 2.4 x 10(-9) cm(-1) for a 4.3-s averaging time was achieved in a 39.5-cm-long static cell with 99.94% reflectivity mirrors. This corresponds to a water-vapor detection limit of less than 2 ppb (parts in 10(9)) for the strong H(2)O lines near 1.4 mum. The shot-to-shot noise of the decay time constant tau was approximately 0.3-0.7%, and ringdown acquisition rates as great as 900 Hz were achieved.
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Web of Science ID 000086598500020
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PubMedID 18345101
High-resolution measurements of HBr transitions in the first overtone band using tunable diode lasers
JOURNAL OF MOLECULAR SPECTROSCOPY
Chou, S. I., Baer, D. S., Hanson, R. K.
2000
200 (1)
: 138-142
Abstract
High-resolution absorption lineshapes of the R(7) and P(2) transitions in the first overtone (v = 0-2) band of H(79)Br have been recorded at room temperature using a pair of distributed feedback diode lasers operating near 1.95 and 2.00 µm, respectively. Spectral line intensities and self-broadening coefficients were determined by fitting the measured spectra (for various pressures P = 10-100 Torr) with Voigt profiles and compared with values in the literature. Measured line intensities for the P(2) and R(7) transitions are approximately 11 and 16% higher than those listed in the HITRAN database, respectively. The measured self-broadening coefficient of the P(2) transition is approximately 14% lower than the value listed in HITRAN. Measurements of the P(2) lineshapes at low pressure (100 mTorr) were modeled with eight-line Gaussian profiles based on ground state (v = 0) hyperfine constants to include the effects of nuclear electric quadrupole interactions. Copyright 2000 Academic Press.
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Web of Science ID 000085653800015
High-Resolution Measurements of HBr Transitions in the First Overtone Band Using Tunable Diode Lasers.
Journal of molecular spectroscopy
Chou, S. I., Baer, D. S., Hanson, R. K.
2000
200 (1)
: 138-142
Abstract
High-resolution absorption lineshapes of the R(7) and P(2) transitions in the first overtone (v = 0-2) band of H(79)Br have been recorded at room temperature using a pair of distributed feedback diode lasers operating near 1.95 and 2.00 µm, respectively. Spectral line intensities and self-broadening coefficients were determined by fitting the measured spectra (for various pressures P = 10-100 Torr) with Voigt profiles and compared with values in the literature. Measured line intensities for the P(2) and R(7) transitions are approximately 11 and 16% higher than those listed in the HITRAN database, respectively. The measured self-broadening coefficient of the P(2) transition is approximately 14% lower than the value listed in HITRAN. Measurements of the P(2) lineshapes at low pressure (100 mTorr) were modeled with eight-line Gaussian profiles based on ground state (v = 0) hyperfine constants to include the effects of nuclear electric quadrupole interactions. Copyright 2000 Academic Press.
View details for
DOI 10.1006/jmsp.1999.8038
View details for
PubMedID 10662585
Measurements of temperature-dependent argon-broadened half-widths of H2O transitions in the 7117 cm(-1) region
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Nagali, V., Davidson, D. F., Hanson, R. K.
2000
64 (6)
: 651-655
View details for
Web of Science ID 000084961400009
In situ combustion measurements of CO with diode-laser absorption near 2.3 µm
Applied Optics
Wang, J., Maiorov, M., Baer, D. S., Garbuzov, D. Z., Connolly, J. C., Hanson, R. K.
2000
39 (30)
: 5579-5589
View details for
DOI 10.1364/AO.39.005579
Diode laser sensor system for multi-parameter measurements in pulse detonation engine flows
36th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
Sanders, S. T., Jenkins, T. P., Hanson, R. K.
2000
View details for
DOI 10.2514/6.2000-3593
In situ combustion measurements of CO2 using diode laser sensors near 2.0 microns
38th Aerospace Sciences Meeting and Exhibit
Webber, M. E., Kim, S., Baer, D. S., Hanson, R. K., Ikeda, Y.
2000
View details for
DOI 10.2514/6.2000-775
in situ combustion measurements of CO using diode-laser absorption near 2.3 microns
38th Aerospace Sciences Meeting and Exhibit
Wang, J., Maiorov, M., Baer, D. S., Garbuzov, D. Z., Connolly, J. C., Hanson, R. K.
2000
View details for
DOI 10.2514/6.2000-255
Soot diagnostic for pulse detonation engine studies
36th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
Jenkins, T. P., Hanson, R. K.
2000
View details for
DOI 10.2514/6.2000-3588
A soot temperature diagnostic combining flame emission and modulated laser absorption
38th Aerospace Sciences Meeting and Exhibit
Jenkins, T. P., Hanson, R. K.
2000
View details for
DOI 10.2514/6.2000-953
Shock tube measurements of jp-10 ignition
28th International Symposium on Combustion
Davidson, D. F., Horning, D. C., Herbon, J. T., Hanson, R. K.
ELSEVIER SCIENCE INC.
2000
: 1687–1692
View details for
Web of Science ID 000169870400027
In situ combustion measurements of CO, CO2, H2O and temperature using diode laser absorption sensors
28th International Symposium on Combustion
Webber, M. E., Wang, J., Sanders, S. T., Baer, D. S., Hanson, R. K.
ELSEVIER SCIENCE INC.
2000
: 407–413
View details for
Web of Science ID 000169795900052
Imaging of CO and CO2 using infrared planar laser-induced fluorescence
28th International Symposium on Combustion
Kirby, B. J., Hanson, R. K.
ELSEVIER SCIENCE INC.
2000
: 253–259
View details for
Web of Science ID 000169795900033
Diode-laser sensor for monitoring multiple combustion parameters in pulse detonation engines
28th International Symposium on Combustion
Sanders, S. T., Baldwin, J. A., Jenkins, T. P., Baer, D. S., Hanson, R. K.
ELSEVIER SCIENCE INC.
2000
: 587–594
View details for
Web of Science ID 000169795900073
Shock tube determination of the overall rate of NH2+NO -> products at high temperatures
28th International Symposium on Combustion
Song, S., Hanson, R. K., Bowman, C. T., GOLDEN, D. M.
ELSEVIER SCIENCE INC.
2000
: 2403–2409
View details for
Web of Science ID 000169870400112
In Situ CO Exhaust Measurements using Diode Laser Absorption near 2.3 µm
OSA Annual Meeting
Jeffries, J. B., Hanson, R. K., Garbuzov, D. Z., Connolly, J. C.
2000
In-Situ Combustion Diagnostics using Diode Laser Absorption Sensors
Laser Applications to Chemical and Environmental Analysis
Webber, M. E., Kim, S., Baer, D. S., Hanson, R. K.
2000
View details for
DOI 10.1364/LACEA.2000.SuA5
Excitation Schemes for Infrared PLIF Imaging of Carbon Dioxide and Methane
Frontiers in Optics / Laser Science
Kirby, B. J., Hanson, R. K.
2000
Measurements of CO, CO2 and H2O Combustion Emissions and Flame Temperature using Diode Laser Sensors
ACS National Meeting, Envir. Chem. Symp.
Webber, M. E., Sanders, S. T., Baer, D. S., Jeffries, J. B., Hanson, R. K., Maiorov, M., Garbuzov, D. Z., Connolly, J. C.
2000
Numerical Simulations and Planar Laser-Induced Fluorescence Imaging Results of Hypersonic Reactive Flows
Journal of Propulsion and Power
Toshimitsu, K., Matsuo, A., Kamel, M. R., Morris, C. I., Hanson, R. K.
2000
16
: 16-21
View details for
DOI 10.2514/2.5558
Recent Advances in Laser-Based Diagnostics for Gaseous Flows
Journal of Visualization
Hanson, R. K., Baer, D. S., Morris, C. I., Thurber, M. C., Furlong, E., Wehe, S. D.
2000
: 309–319
View details for
DOI 10.1007/BF03181447
Diode-Laser Absorption Sensor for Measurements in Pulse Detonation Engines
38th Aerospace Sciences Meeting and Exhibit
Sanders, S. T., Jenkins, T. P., Baldwin, J. A., Baer, D. S., Hanson, R. K.
2000
View details for
DOI 10.2514/6.2000-358
Tunable Diode Laser Sensors for Industrial Combustion Monitoring
American Flame Research Committee (AFRC) Int. Symp.
DeBarber, P., McKenzie, R. L., Hanson, R. K., Jeffries, J. B., Webber, M. E.
2000
Vibrational Overtone Spectroscopy of NH3 for Industrial Sensors using DFB Diode Lasers
OSA Annual Meeting
Webber, M. E., Jeffries, J. B., Hanson, R. K.
2000
Diode Laser-Based Measurements for Model Validation in Pulse Detonation Flows
JANNAF Joint Meeting
Jenkins, T. P., Sanders, S. T., Kailasaneth, K., Li, C., Hanson, R. K.
2000
Shock Tubes and Lasers: New Opportunities for High Temperature Kinetics Studies
Invited Plenary Lecture, 16th Inter. Symp. on Gas Kinetics
Bowman, C. T., Hanson, R. K.
2000
In Situ Measurements of CO, CO2, H2O Combustion Emissions with Diode Laser Sensors
E.P.A./ Air and Waste Management Association Symp.
Wang, J., Webber, M. E., Sanders, S. T., Baer, D. S., Jeffries, J. B., Hanson, R. K.
2000
Dual-Camera Infrared PLIF Imaging of CO and CO2
38th Aerospace Sciences Meeting and Exhibit
Kirby, B. J., Hanson, R. K.
2000
View details for
DOI 10.2514/6.2000-640
An Experimental Investigation of High Compressibility Non-reacting Mixing Layers
38th Aerospace Sciences Meeting and Exhibit
Rossmann, T., Mungal, M. G., Hanson, R. K.
2000
View details for
DOI 10.2514/6.2000-663
Shock-tube study of high-pressure H2O spectroscopy
APPLIED OPTICS
Nagali, V., Herbon, J. T., Horning, D. C., Davidson, D. F., Hanson, R. K.
1999
38 (33)
: 6942-6950
Abstract
Water-vapor absorption features near 7117, 7185, and 7462 cm(-1) were probed at pressures to 65 atm (1 atm = 760 Torr) and temperatures to 1800 K in shock-heated mixtures of H(2)O in N(2) and Ar with a diode-laser source. Calculated absorbances based on Voigt line shapes and measured line parameters were in good agreement, within 10%, with measured absorbances at 7185.4 and 7117.4 cm(-1). We obtained temperature-dependent N(2) and Ar shift parameters for H(2)O absorption features by shifting the calculated spectra to match the recorded absorption scan. Absorbance simulations based on line parameters from HITRAN and HITEMP were found to be similar over the range of temperatures 600-1800 K and were within 25% of the measurements. The combined use of Toth's [Appl. Opt. 36, 4851 (1994)] line positions and strengths and HITRAN broadening parameters resulted in calculated absorption coefficients that were within 15% of the measurements at all three probed wavelengths.
View details for
Web of Science ID 000083743900019
View details for
PubMedID 18324237
Planar laser-induced fluorescence imaging of carbon monoxide using vibrational (infrared) transitions
APPLIED PHYSICS B-LASERS AND OPTICS
Kirby, B. J., Hanson, R. K.
1999
69 (5-6)
: 505-507
View details for
Web of Science ID 000083978800027
Pressure and composition dependences of acetone laser-induced fluorescence with excitation at 248, 266, and 308 nm
APPLIED PHYSICS B-LASERS AND OPTICS
Thurber, M. C., Hanson, R. K.
1999
69 (3)
: 229-240
View details for
Web of Science ID 000082304100007
Diode-laser sensor for velocity measurements in hypervelocity flows
AIAA JOURNAL
Wehe, S. D., Baer, D. S., Hanson, R. K.
1999
37 (8)
: 1013-1015
View details for
Web of Science ID 000081901700019
Diode-laser measurements of He-, Ar-, and N-2-broadened HF lineshapes in the first overtone band
JOURNAL OF MOLECULAR SPECTROSCOPY
Chou, S. I., Baer, D. S., Hanson, R. K.
1999
196 (1)
: 70-76
Abstract
High-resolution lineshapes of the HF P(3) and P(6) transitions (2-0 band) have been recorded in a 14.9-cm long absorption cell (T = 296 K) using a pair of (InGaAsP)-distributed feedback diode lasers operating near 1.31 and 1.34 µm, respectively. The absorption lineshapes were least-squares fit to Voigt, Rautian, and Galatry profiles to determine the collision widths and velocity-changing collision frequencies for the perturbers He, Ar, and N2. Motional narrowing was observed for the He-broadened lineshapes over a range of total pressures from 50 to 646 Torr. The Ar- and N2-broadened spectra showed a strong narrowing effect for pressures less than 400 Torr. At higher pressures, narrowing parameters could not be reliably determined due to the relatively large Ar- and N2-pressure broadening. The collision widths inferred from Voigt-profile fits were systematically less than those determined from Rautian and Galatry fits (up to 25% for the He-broadened P(6) transition). The measured pressure-induced broadening and shift coefficients were compared with other experimental data and full-quantal close-coupling (CC) scattering cross-section calculations. The measured Ar-broadening half-widths were in excellent agreement with calculated values, while the measured shifts were 10 and 20% less than calculated values for the P(3) and P(6) transitions, respectively. The measured N2-broadening and shift coefficients agree reasonably well with values determined from previous experiments. Copyright 1999 Academic Press.
View details for
Web of Science ID 000081004300007
Diode-Laser Measurements of He-, Ar-, and N2-Broadened HF Lineshapes in the First Overtone Band.
Journal of molecular spectroscopy
Chou, S. I., Baer, D. S., Hanson, R. K.
1999
196 (1)
: 70-76
Abstract
High-resolution lineshapes of the HF P(3) and P(6) transitions (2-0 band) have been recorded in a 14.9-cm long absorption cell (T = 296 K) using a pair of (InGaAsP)-distributed feedback diode lasers operating near 1.31 and 1.34 µm, respectively. The absorption lineshapes were least-squares fit to Voigt, Rautian, and Galatry profiles to determine the collision widths and velocity-changing collision frequencies for the perturbers He, Ar, and N2. Motional narrowing was observed for the He-broadened lineshapes over a range of total pressures from 50 to 646 Torr. The Ar- and N2-broadened spectra showed a strong narrowing effect for pressures less than 400 Torr. At higher pressures, narrowing parameters could not be reliably determined due to the relatively large Ar- and N2-pressure broadening. The collision widths inferred from Voigt-profile fits were systematically less than those determined from Rautian and Galatry fits (up to 25% for the He-broadened P(6) transition). The measured pressure-induced broadening and shift coefficients were compared with other experimental data and full-quantal close-coupling (CC) scattering cross-section calculations. The measured Ar-broadening half-widths were in excellent agreement with calculated values, while the measured shifts were 10 and 20% less than calculated values for the P(3) and P(6) transitions, respectively. The measured N2-broadening and shift coefficients agree reasonably well with values determined from previous experiments. Copyright 1999 Academic Press.
View details for
DOI 10.1006/jmsp.1999.7847
View details for
PubMedID 10361058
Diode-laser absorption measurements of hydrazine and monomethylhydrazine
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Webber, M. E., Mihalcea, R. M., Baer, D. S., Hanson, R. K., Segall, J., DeBarber, P. A.
1999
62 (4)
: 511-522
View details for
Web of Science ID 000079839000010
Reduced kinetics mechanisms for ram accelerator combustion
AIAA/ASME/SAE/ASEE 33rd Joint Propulsion Conference and Exhibit
Petersen, E. L., Hanson, R. K.
AMER INST AERONAUT ASTRONAUT.
1999
: 591–600
View details for
Web of Science ID 000081511500014
Sensitive detection of NH2 in shock tube experiments using frequency modulation spectroscopy
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
Votsmeier, M., Song, S., Davidson, D. F., Hanson, R. K.
1999
31 (6)
: 445-453
View details for
Web of Science ID 000080484800006
Diode-laser sensors for real-time control of pulsed combustion systems
AIAA/ASME/SAE/ASEE 34th Joint Propulsion Conference and Exhibit
Furlong, E. R., Mihalcea, R. M., Webber, M. E., Baer, D. S., Hanson, R. K.
AMER INST AERONAUT ASTRONAUT.
1999
: 732–37
View details for
Web of Science ID 000080578400011
Spectral intensity and lineshape measurements in the first overtone band of HF using tunable diode lasers
JOURNAL OF MOLECULAR SPECTROSCOPY
Chou, S. I., Baer, D. S., Hanson, R. K.
1999
195 (1)
: 123-131
Abstract
High-resolution absorption lineshapes for the P(3) and P(6) transitions of the first overtone (v = 2-0) band of HF at 296 K have been measured using a pair of distributed feedback diode lasers operating near 1.31 and 1.34 µm, respectively. Spectral line intensities and self-broadening parameters were determined by fitting the measured spectra with Voigt, Galatry, and Rautian lineshape models. Voigt profiles fit the low-pressure (<10 Torr) spectra of the P(3) transition reasonably well due to the relatively strong collisional broadening effect. Lineshape measurements of the P(6) transition (for pressures ranging from 5 to 60 Torr) show significant variation from the Voigt lineshape model due to velocity-changing collisions that effectively reduce the Doppler component of the spectral line. Lineshape models that include motional (Dicke) narrowing effects, Galatry (soft collision) and Rautian (hard collision) profiles yield significant improvements in the spectral lineshape fits compared with Voigt profiles. The collisional broadening coefficient (gamma) of the P(6) transition obtained from a Voigt fit is approximately 4% lower than those found with either Galatry or Rautian profile fits. The measured intensities and self-broadening coefficients are compared with values in the HITRAN database and previous measurements. Copyright 1999 Academic Press.
View details for
Web of Science ID 000079924700009
Spectral Intensity and Lineshape Measurements in the First Overtone Band of HF Using Tunable Diode Lasers.
Journal of molecular spectroscopy
Chou, S. I., Baer, D. S., Hanson, R. K.
1999
195 (1)
: 123-131
Abstract
High-resolution absorption lineshapes for the P(3) and P(6) transitions of the first overtone (v = 2-0) band of HF at 296 K have been measured using a pair of distributed feedback diode lasers operating near 1.31 and 1.34 µm, respectively. Spectral line intensities and self-broadening parameters were determined by fitting the measured spectra with Voigt, Galatry, and Rautian lineshape models. Voigt profiles fit the low-pressure (<10 Torr) spectra of the P(3) transition reasonably well due to the relatively strong collisional broadening effect. Lineshape measurements of the P(6) transition (for pressures ranging from 5 to 60 Torr) show significant variation from the Voigt lineshape model due to velocity-changing collisions that effectively reduce the Doppler component of the spectral line. Lineshape models that include motional (Dicke) narrowing effects, Galatry (soft collision) and Rautian (hard collision) profiles yield significant improvements in the spectral lineshape fits compared with Voigt profiles. The collisional broadening coefficient (gamma) of the P(6) transition obtained from a Voigt fit is approximately 4% lower than those found with either Galatry or Rautian profile fits. The measured intensities and self-broadening coefficients are compared with values in the HITRAN database and previous measurements. Copyright 1999 Academic Press.
View details for
DOI 10.1006/jmsp.1999.7805
View details for
PubMedID 10191156
Shock tube study of monomethylamine thermal decomposition and NH2 high temperature absorption coefficient
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
Votsmeier, M., Song, S., Davidson, D. F., Hanson, R. K.
1999
31 (5)
: 323-330
View details for
Web of Science ID 000080104200001
A shock tube study of the product branching ratio for the reaction NH2+NO using frequency-modulation detection of NH2
JOURNAL OF PHYSICAL CHEMISTRY A
Votsmeier, M., Song, S., Hanson, R. K., Bowman, C. T.
1999
103 (11)
: 1566-1571
View details for
Web of Science ID 000079458500017
Shock Tube Study of the H + O2 + M -> HO2 + M (M = Ar, N2, H2O) Reaction at Elevated Pressures for Temperatures between 1050-1200K
Joint Meeting of U.S. Combustion Institute Sections
Bates, R. W., Hanson, R. K., Bowman, C. T., Golden, D. M.
1999
Infrared PLIF imaging of CO and CO2
37th Aerospace Sciences Meeting and Exhibit
Kirby, B. J., Hanson, R. K.
1999
View details for
DOI 10.2514/6.1999-775
Hypervelocity combustion studies using simultaneous OH-PLIF and Schlieren imaging in an expansion tube
35th Joint Propulsion Conference and Exhibit
Ben-Yakar, A., Hanson, R. K.
1999
View details for
DOI 10.2514/6.1999-2453
Supersonic combustion of cross-flow jets and the influence of cavity flame-holders
37th Aerospace Sciences Meeting and Exhibit
Ben-Yakar, A., Hanson, R. K.,
1999
View details for
DOI 10.2514/6.1999-484
Advanced diode-laser absorption sensors for combusion monitoring and control
Advanced Sensors and Monitors for Process Industries and the Environment
Baer, D. S., Furlong, E. R., Mihalcea, R. M., Webber, M. E., Hanson, R. K.
1999
View details for
DOI 10.1117/12.337462
A new shock tunnel facility for high compressibility mixing layer studies
37th Aerospace Sciences Meeting and Exhibit
Rossmann, T., Mungal, M. G., Hanson, R. K.
1999
View details for
DOI 10.2514/6.1999-415
New room temperature CWInGaAsSb/AlGaAsSb QW ridge diode lasers and their application to CO measurements near 2.3 mu m
SPIE Conference on Air Monitoring and Detection of Chemical and Biological Agents II
Maiorov, M., Wang, J., Baer, D., LEE, H., Belenky, G., Hanson, R., Connolly, J., Garbuzov, D.
SPIE-INT SOCIETY OPTICAL ENGINEERING.
1999
: 62–70
View details for
Web of Science ID 000084810600007
Advanced diode-laser absorption sensors for combustion monitoring and control
Conference on Advanced Sensors and Monitors for Process Industries and the Environment
Baer, D. S., Furlong, E. R., Mihalcea, R. M., Webber, M. E., Hanson, R. K.
SPIE - INT SOC OPTICAL ENGINEERING.
1999
: 16–23
View details for
Web of Science ID 000078906900002
Gas Temperature and Velocity Measurements in Hypervelocity Flows Using Diode-Laser Absorption Sensors
22nd Int’l. Shock Tube and Shock Wave Symp.
Wehe, S. D., Baer, D. S., Hanson, R. K., Chadwick, K. M.
1999
Ignition Delay Times of Ram Accelerator CH/O/Diluent Mixtures
Journal of Propulsion and Power
Petersen, E. L., Davidson, D. F., Hanson, R. K.
1999
15
: 82-91
View details for
DOI 10.2514/2.5394
Shock Tube Ignition Time Measurements for n-heptane/O2/Ar and JP-10/O2/Ar Mixtures
35th Joint Propulsion Conference and Exhibit
Davidson, D. F., Horning, D. C., Hanson, R. K.
1999
View details for
DOI 10.2514/6.1999-2216
Shock Tube Ignition Time Measurements for n-Heptane/Oxygen/Argon Mixtures with and without Additives
Joint Meeting of U.S. Combustion Institute Sections
Davidson, D. F., Hitch, B., Horning, D. C., Hanson, R. K.
1999
Fundamental Investigations of Pulsed Detonation Phenomena
JANNAF 36th CS/APS/PSHS Joint Meeting
Williams, F. A., Hanson, R. K., Segal, C.
1999
Diode-Laser Based Diagnostic to Monitor Water-Vapor in High-Pressure Environments
37th Aerospace Sciences Meeting and Exhibit
Nagali, V., Herbon, J., Horning, D., Bates, R., Davidson, D. F., Hanson, R. K.,
1999
View details for
DOI 10.2514/6.1999-942
Shock Tube Ignition Time Measurements for n-heptane/O2/Ar with and without Additives
22nd Int’l. Shock Tube and Shock Wave Symp.
Davidson, D. F., Horning, D. C., Hanson, R. K., Hitch, B.
1999
Shock Tube Study of the Reaction NH2 + NO -> Products using Frequency Modulation Detection of NH2: Product Branching Ratio and Overall Rate Coefficient
Joint Meeting of U.S. Combustion Institute Sections
Song, S., Votsmeier, M., Hanson, R. K., Bowman, C. T., Golden, D. M.,
1999
Shock tube measurements of the equation of state of argon
13th Symposium on Thermophysical Properties
Davidson, D. F., Bates, R., Petersen, E. L., Hanson, R. K.
SPRINGER/PLENUM PUBLISHERS.
1998
: 1585–94
View details for
Web of Science ID 000078147800009
Diode-laser absorption measurements of CO2, H2O, N2O, and NH3 near 2.0 mu m
APPLIED PHYSICS B-LASERS AND OPTICS
Mihalcea, R. M., Webber, M. E., Baer, D. S., Hanson, R. K., Feller, G. S., Chapman, W. B.
1998
67 (3)
: 283-288
View details for
Web of Science ID 000075859600004
CH-radical concentration measurements in fuel-rich CH4/O-2/Ar and CH4/O-2/NO/Ar mixtures behind shock waves
COMBUSTION AND FLAME
Woiki, D., Votsmeier, M., Davidson, D. F., Hanson, R. K., Bowman, C. T.
1998
113 (4)
: 624-626
View details for
Web of Science ID 000073079800016
A diode-laser absorption sensor system for combustion emission measurements
MEASUREMENT SCIENCE & TECHNOLOGY
Mihalcea, R. M., Baer, D. S., Hanson, R. K.
1998
9 (3)
: 327-338
View details for
Web of Science ID 000072540300004
Application of method of characteristics to underexpanded, freejet flows with vibrational nonequilibrium
AIAA JOURNAL
Palmer, J. L., Hanson, R. K.
1998
36 (2)
: 193-200
View details for
Web of Science ID 000071697800010
Measurement of the Third-Body Efficiency of Water for the H + O2 + M -> HO2 + M Reaction at 35 atm and 1200 K
poster at 27th Symp. (Int.) on Combustion
Bates, R. W., Hanson, R. K., Bowman, C. T., Golden, D. M.
1998
Measurements of gas temperature and velocity in hypervelocity flows using diode-laser sensors
20th AIAA Advanced Measurement and Ground Testing Technology Conference
Wehe, S. D., Baer, D. S., Hanson, R. K.
1998
View details for
DOI 10.2514/6.1998-2699
Diode laser sensors for real-time control of pulsed combustion systems
34th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
Furlong, E. R., Mihalcea, R. M., Webber, M. E., Baer, D. S., Hanson, R. K.
1998
View details for
DOI 10.2514/6.1998-3949
Optimized Kinetics Mechanism and Calculator for Natural Gas Combustion GRI-Mech 3.0
American Flame Research Committee
Smith, G. P., Golden, D. M., Frenklach, M., Goldenberg, M., Moriarity, N., Bowman, C. T., Hanson, R. K., Gardiner, W. C., Lissianski, V., Seruskas, R. V.
1998
Combustion emissions measurements using diode-laser sensors
34th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
Mihalcea, R. M., Webber, M. E., Baer, D. S., Hanson, R. K.
1998
View details for
DOI 10.2514/6.1998-3948
Cavity flameholders for ignition and flame stabilization in scramjets - Review and experimental study
34th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
Ben-Yakar, A., Hanson, R. K.
1998
View details for
DOI 10.2514/6.1998-3122
Advanced diode laser absorption sensor for in-situ combustion measurements of CO2, H2O, and gas temperature
36th AIAA Aerospace Sciences Meeting and Exhibit
Mihalcea, R. M., Baer, D. S., Hanson, R. K.,
1998
View details for
DOI 10.2514/6.1998-237
Real-time adaptive combustion control using diode-laser absorption sensors
27th International Symposium on Combustion
Furlong, E. R., Baer, D. S., Hanson, R. K.
COMBUSTION INSTITUTE.
1998
: 103–111
View details for
Web of Science ID 000083308600009
Shock-induced combustion in high-speed wedge flows
27th International Symposium on Combustion
Morris, C. I., Kamel, M. R., Hanson, R. K.
COMBUSTION INSTITUTE.
1998
: 2157–2164
View details for
Web of Science ID 000083308600250
Advanced diode laser absorption sensor for in situ combustion measurements of CO2, H2O, and gas temperature
27th International Symposium on Combustion
Mihalcea, R. M., Baer, D. S., Hanson, R. K.
COMBUSTION INSTITUTE.
1998
: 95–101
View details for
Web of Science ID 000083308600008
Continuously Tunable, Single Mode, External Cavity Diode Lasers at 2 μm
Laser Applications to Chemical, Security and Environmental Analysis
Feller, G. S., Wu, I. F., Menna, R. J., Martinelli, R. U., Connolly, J. C., Mihalcea, R. M., Baer, D. S., Hanson, R. K.
1998
Diode Laser Sensors for Combustion Measurements and Control
Advances in Chemical Propulsion
Baer, D. S., Hanson, R. K.
edited by Roy, G. D.
1998
Measurements and modeling of acetone laser-induced fluorescence with implications for temperature-imaging diagnostics
Applied Optics
Thurber, M. C., Grisch, F., Kirby, B. J., Votsmeier, M., Hanson, R. K.
1998
37 (21)
: 4963-4978
View details for
DOI 10.1364/AO.37.004963
Advanced Diode-Laser Sensors for Closed-Loop Control of a Forced-Vortex Combustor
Frontiers in Optics / Laser Science
Furlong, E. R., Mihalcea, R. M., Webber, M. E., Baer, D. S., Hanson, R. K.
1998
Measurements of Gas Temperature and Velocity in High Enthalpy Flows using a Diode Laser Absorption Sensor
Frontiers in Optics / Laser Science
Wehe, S. D., Baer, D. S., Hanson, R. K.
1998
Investigation of Shock-Induced Combustion in Hypersonic Wedge Flows
WSS/CI
Morris, C. I., Kamel, M. R., Hanson, R. K.
1998
Infrared PLIF Imaging of Gaseous Flows
36th AIAA Aerospace Sciences Meeting and Exhibit
Kirby, B. J., Hanson, R. K.
1998
View details for
DOI 10.2514/6.1998-307
Hypersonic Combustion and Mixing Studies Using Simultaneous OH-PLIF and Schlieren Imaging
36th AIAA Aerospace Sciences Meeting and Exhibit
Ben-Yakar, A., Kamel, M., Morris, C. I., Hanson, R. K.
1998
View details for
DOI 10.2514/6.1998-940
Experimental Investigation of Hydrogen-Air Autoignition and Flame Stabilization in Hypervelocity Flows
WSS/CI
Ben-Yakar, A., Kamel, M., Morris, C. I., Hanson, R. K.
1998
Diode-Laser Absorption Measurements of CO2, H2O and N2O near 2 μm
Laser Applications to Chemical, Security and Environmental Analysis
Mihalcea, R. M., Baer, D. S., Hanson, R. K., Feller, G. S.
1998
Diode Laser Sensor for Combustion Emissions Monitoring
SPIE/VSJ
Mihalcea, R. M., Webber, M. E., Baer, D. S., Hanson, R. K.
1998
Combined Schlieren and OH PLIF Imaging Study of Ram Accelerator Flowfields
36th AIAA Aerospace Sciences Meeting and Exhibit
Morris, C. I., Kamel, M. R., Ben-Yakar, A., Hanson, R. K.
1998
View details for
DOI 10.2514/6.1998-244
Simultaneous PIV and PLIF Measurements in Nonpremixed Transverse Jet Flames
9th Int. Symp. on Applications of Laser Techniques to Fluid Mechanics
Hasselbrink, E. F., Mungal, M. G., Hanson, R. K.
1998
Experimental Investigation of Ram-Accelerator Flow Fields and Combustion Kinetics
Ram Accelerators
Kamel, M. R., Morris, C. I., Petersen, E. L., Hanson, R. K.
Springer Press.
1998
: 281–294
View details for
DOI 10.1007/978-3-642-46876-6_28
Diode-laser absorption measurements of CO2 near 2.0 μm at elevated temperatures
Applied Optics
Mihalcea, R. M., Baer, D. S., Hanson, R. K.
1998
37 (36)
: 8341-8347
View details for
DOI 10.1364/AO.37.008341
Diode-Laser Sensing System for Combustion Monitoring
Laser Applications to Chemical Analysis
Mihalcea, R. M., Baer, D. S., Hanson, R. K.
1998
Instantaneous Imaging of Temperature and Mixture Fraction with Dual-Wavelength Acetone PLIF
36th AIAA Aerospace Sciences Meeting and Exhibit
Thurber, M. C., Kirby, B. J., Hanson, R. K.
1998
View details for
DOI 10.2514/6.1998-397
Experimental investigation of flame-holding capability of hydrogen transverse jet in supersonic cross-flow
27th International Symposium on Combustion
Ben-Yakar, A., Hanson, R. K.
COMBUSTION INSTITUTE.
1998
: 2173–2180
View details for
Web of Science ID 000083308600252
Combustion Diagnostics
in Propulsion Combustion: Fuels to Emissions, Chap. 9
Parr, T. P., Hanson, R. K.
edited by Roy, G. D.
Taylor and Francis, Washington, DC.
1998
: 281–320
Comparison of Numerical Simulations and PLIF Imaging Results of Hypersonic Inert and Reactive Flows around Blunt Projectiles
Ram Accelerators
Toshimitsu, K., Matsuo, A., Kamel, M. R., Morris, C. I., Hanson, R. K.,
Springer Press.
1998
: 235–242
View details for
DOI 10.1007/978-3-642-46876-6_23
Simultaneous Planar Velocity Measurements and OH Imaging in a Transverse Jet Flame
Journal of Visualization
Hasselbrink, E. F., Mungal, M. G., Hanson, R. K.
1998
1 (1)
: 65-77
View details for
DOI 10.1007/BF03182475
Diode Laser Absorption Measurements of Hydrazine and Monomethylhydrazine
36th Aerospace Sciences Meeting
Webber, M. E., Mihalcea, R. M., Baer, D. S., Hanson, R. K., Segall, J., DeBarber, P.
1998
View details for
DOI 10.2514/6.1998-400
Design of a diode-laser sensor to monitor water vapor in high-pressure combustion gases
APPLIED OPTICS
Nagali, V., Hanson, R. K.
1997
36 (36)
: 9518-9527
Abstract
The design of a diode-laser sensor to monitor water vapor in high-pressure combustion gases is described. The sensor, which employs a multiple-fixed-wavelength absorption strategy, has the potential to simultaneously monitor the water mole fraction and the temperature and pressure in high-pressure and high-temperature environments. The conventional scanned-wavelength strategy, employed in previous diode-laser sensors, is shown to be ill-suited for high-pressure applications. The application of impact and additive approximations in the modeling of H(2)O absorption features at high pressures is validated experimentally for number densities as high as 18 amagats. Criteria to select optimum wavelength combinations for the fixed-wavelengths strategy are discussed. Optimum wavelength combinations that meet these criteria are identified for different temperature and pressure ranges of interest to combustion applications. The proposed sensor configuration and a strategy to obtain the baseline (zero absorption intensity) in high-pressure environments are also described. Line-shape models that are appropriate for different temperature and pressure regimes are identified.
View details for
Web of Science ID A1997YL30200024
View details for
PubMedID 18264514
Diode laser sensor for measurements of CO, CO2, and CH4 in combustion flows
APPLIED OPTICS
Mihalcea, R. M., Baer, D. S., Hanson, R. K.
1997
36 (33)
: 8745-8752
Abstract
A diode laser sensor has been applied to monitor CO, CO(2), and CH(4) in combustion gases with absorption spectroscopy and fast extraction-sampling techniques. Survey spectra of the CO 3nu band (R branch) and the 2nu(1) + 2nu(2)(0) + nu(3) CO(2) band (R branch) near 6350 cm(-1) and H(2)O lines from the nu(1) + 2nu(2) and 2nu(2) + nu(3) bands in the spectral region from 6345 to 6660 cm(-1) were recorded and compared with calculated spectra (from the HITRAN 96 database) to select optimum transitions for species detection. Species concentrations above a laminar, premixed, methane-air flame were determined from measured absorption in a fast-flow multipass absorption cell containing probe-sampled combustion gases; good agreement was found with calculated chemical equilibrium values.
View details for
Web of Science ID A1997YF88600029
View details for
PubMedID 18264424
Laser-induced fluorescence study of a xenon Hall thruster
APPLIED PHYSICS B-LASERS AND OPTICS
Cedolin, R. J., Hargus, W. A., Storm, P. V., Hanson, R. K., Cappelli, M. A.
1997
65 (4-5)
: 459-469
View details for
Web of Science ID A1997YA61300005
Temperature imaging with single- and dual-wavelength acetone planar laser-induced fluorescence
OPTICS LETTERS
Thurber, M. C., Grisch, F., Hanson, R. K.
1997
22 (4)
: 251-253
Abstract
Two sensitive techniques for temperature imaging by use of acetone planar laser-induced fluorescence, applicable at temperatures up to 1000 K, are introduced and demonstrated. Photophysics data on the wavelength-dependent temperature variation of acetone fluorescence permit the implementation of a single-wavelength technique in environments with constant pressure and constant acetone mole fraction, and a dual-wavelength method can be applied in flows with mixing and (or) chemical reaction. Preliminary imaging results are presented for acetone-air flow over a heated cylinder (single-wavelength strategy) and for a heated laminar jet (dual-wavelength strategy).
View details for
Web of Science ID A1997WH24600019
View details for
PubMedID 18183166
Laser Absorption and Infrared Emission Measurements in a High-Pressure Shock Tube
35th Aerospace Sciences Meeting and Exhibit
Petersen, E. L., Bates, R., Davidson, D. F., Hanson, R. K.
1997
View details for
DOI 10.2514/6.1997-316
Tunable diode-laser absorption measurements of temperature, velocity, and H2O in hypervelocity flows
33rd Joint Propulsion Conference and Exhibit
Wehe, S. D., Baer, D. S., Hanson, R. K.
1997
View details for
DOI 10.2514/6.1997-3267
Combustion sensing and control using wavelength-multiplexed diode lasers
35th Aerospace Sciences Meeting and Exhibit
Furlong, E. R., Mihalcea, R. M., Webber, M. E., Baer, D. S., Hanson, R. K.
1997
View details for
DOI 10.2514/6.1997-320
Planar velocity measurements and OH imaging in a transverse jet flame
35th Aerospace Sciences Meeting and Exhibit
Hasslebrink, E. F., Mungal, M. G., Hanson, R. K.,
1997
View details for
DOI 10.2514/6.1997-118
Diode-laser absorption sensor system for combustion monitoring and control applications
33rd Joint Propulsion Conference and Exhibit
Mihalcea, R. M., Baer, D. S., Hanson, R. K.
1997
View details for
DOI 10.2514/6.1997-3356
Laser-induced fluorescence study of a xenon Hall thruster
33rd Joint Propulsion Conference and Exhibit
Cedolin, R. J., Hargus, Jr, W. A., Storm, P. V., Hanson, R. K., Cappelli, M. A.
1997
View details for
DOI 10.2514/6.1997-3053
Diode-laser sensor system for closed-loop control of a 50-kW incinerator
Conference on Optical Technology in Fluid, Thermal, and Combustion Flow III
Furlong, E. R., Mihalcea, R. M., Webber, M. E., Baer, D. S., Hanson, R. K., Parr, T. P.
SPIE - INT SOC OPTICAL ENGINEERING.
1997
: 324–330
View details for
Web of Science ID 000071157200033
Diode-laser absorption sensor system for measurements of combustion pollutants
Conference on Optical Technology in Fluid, Thermal, and Combustion Flow III
Mihalcea, R. M., Baer, D. S., Hanson, R. K.
SPIE - INT SOC OPTICAL ENGINEERING.
1997
: 106–117
View details for
Web of Science ID 000071157200011
Diode-laser measurements of temperature-dependent half-widths of H2O transitions in the 1.4 μm region
Journal of Quantitative Spectroscopy & Radiative Transfer
Nagali, V., Chou, S. I., Baer, D. S., Hanson, R. K.
1997
57 (6)
: 795-809
View details for
DOI 10.1016/S0022-4073(97)00011-3
Instantaneous Temperature Imaging with Single-Wavelength Acetone PLIF
35th Aerospace Sciences Meeting and Exhibit
Thurber, M. C., Kirby, B. J., Grisch, F., Hanson, R. K.
1997
View details for
DOI 10.2514/6.1997-151
Development of a Diode-Laser Based Diagnostic to Monitor H2O in High-Pressure Environments
35th Aerospace Sciences Meeting and Exhibit
Nagali, V., Hanson, R. K.
1997
View details for
DOI 10.2514/6.1997-774
An Optimized Chemical Mechanism for Natural Gas Combustion: Nitrogen Chemistry
AIChE Annual Meeting
Bowman, C. T., Hanson, R. K., Gardiner, W. C.
1997
Experimental Investigation of Hypersonic Reactive Flows Around Axisymmetric Blunt Bodies
33rd Joint Propulsion Conference and Exhibit
Kamel, M., Morris, C. I., Ben-Yakar, A., Hanson, R. K.
1997
View details for
DOI 10.2514/6.1997-3177
Measurement of the Rate Coefficient of the Reaction CH + O2 -> Products in the Temperature Range 2200 to 2600 K
International Journal of Chemical Kinetics
Röhrig, M., Petersen, E. L., Davidson, D. F., Hanson, R. K., Bowman, C. T.
1997
29 (10)
: 781-789
View details for
DOI 10.1002/(SICI)1097-4601(1997)29:10<781::AID-KIN7>3.0.CO;2-I
Advanced Laser-Based Diagnostics for Shock Tube/Tunnel Flows
plenary paper, Proceedings of the 21st Int’l. Symp. on Shock Tubes and Waves
Hanson, R. K.
1997
Reduced Kinetics Mechanisms for Ram Accelerator Combustion
33rd Joint Propulsion Conference and Exhibit
Petersen, E. L., Davidson, D. F., Hanson, R. K.
1997
View details for
DOI 10.2514/6.1997-2892
Diode laser absorption measurements of CH3Cl and CH4 near 1.65 µm
Applied Optics
Chou, S. I., Baer, D. S., Hanson, R. K.
1997
36 (15)
: 3288-3293
View details for
DOI 10.1364/AO.36.003288
PLIF and Schlieren Imaging of Oblique Detonation Waves
21st Int’l. Symp. on Shock Tubes and Waves
Hanson, R. K., Morris, C. I.
1997
Experimental Investigation of H2 Transverse Jet Combustion in Hypervelocity Flows
33rd Joint Propulsion Conference and Exhibit
Ben-Yakar, A., Kamel, M., Morris, C. I., Hanson, R. K.
1997
View details for
DOI 10.2514/6.1997-3019
Diode Laser Sensor System for Closed-Loop Control of a 50-kW Incinerator
33rd Joint Propulsion Conference and Exhibit
Furlong, E. R., Mihalcea, R. M., Webber, M. E., Baer, D. S., Hanson, R. K., Parr, T. P.
1997
View details for
DOI 10.2514/6.1997-2833
A Shock Tube Study of the Pyrolysis of NO2
International Journal of Chemical Kinetics
Röhrig, M., Petersen, E. L., Davidson, D. F., Hanson, R. K.
1997
: 483–493
View details for
DOI 10.1002/(SICI)1097-4601(1997)29:7<483::AID-KIN2>3.0.CO;2-Q
Mesure de Température par Fluorescence Induite par Laser sur la Molécular d’Acétone
Revue Scientifique et Technique de la Défense
Grisch, F., Thurber, M. C., Hanson, R. K.
1997
: 51-60
Argon Broadening of the R (48), R (50) and R (52) Lines of CO2 in the (00°1) ¬ (00°0) Band
Journal of Quantitative Spectroscopy and Radiative Transfer
Wooldridge, M. S., Hanson, R. K., Bowman, C. T.
1997
57 (3)
: 425-434
View details for
DOI 10.1016/S0022-4073(96)00074-X
Simultaneous PLIF and Schlieren Imaging of Hypersonic Reactive Flows Around Blunted Cylinders
35th Aerospace Sciences Meeting and Exhibit
Kamel, M., Morris, C. I., Hanson, R. K.
1997
View details for
DOI 10.2514/6.1997-913
Recent Advances in Laser-Based Combustion Diagnostics
35th Aerospace Sciences Meeting and Exhibit
Hanson, R. K.
1997
View details for
DOI 10.2514/6.1997-115
Kinetics Modeling of Shock-Induced Ignition in Low-Dilution CH4/O2 Mixtures at High Pressures and Intermediate Temperatures
Combustion and Flame, and at WSS/CI
Petersen, E. L., Davidson, D. F., Hanson, R. K.
1997
: 272–90
View details for
DOI 10.1016/S0010-2180(98)00111-4
The pressure dependence of the thermal decomposition of N2O
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
Rohrig, M., Petersen, E. L., Davidson, D. F., Hanson, R. K.
1996
28 (8)
: 599-608
View details for
Web of Science ID A1996UX88900005
Tunable diode-laser absorption measurements of NO2 near 670 and 395 nm
OSA 1995 Annual Meeting
Mihalcea, R. M., Baer, D. S., Hanson, R. K.
OPTICAL SOC AMER.
1996
: 4059–64
Abstract
Two single-mode diode lasers were used to record high-resolution absorption spectra of NO(2) (dilute in Ar) near 670.2 and 394.5 nm over a range of temperatures (296 to 774 K) and total pressures (2.4 × 10(-2) to 1 atm). A commercial InGaAsP laser was tuned 1.3 cm(-1) at a repetition rate of 1 kHz to record the absorption spectra near 670.2 nm. In separate experiments with a prototype system, an external-cavity GaAlAs laser was frequency doubled with a quasi-phase-matched LiNbO(3) waveguide and tuned 3.5 cm(-1) to record absorption spectra near 394.5 nm. Variations of the spectral absorption coefficients with temperature and pressure were determined from measured spectra.
View details for
Web of Science ID A1996VA60800012
View details for
PubMedID 21102811
Tunable diode-laser absorption measurements of methane at elevated temperatures
OSA 1995 Annual Meeting
Nagali, V., Chou, S. I., Baer, D. S., Hanson, R. K., Segall, J.
OPTICAL SOC AMER.
1996
: 4026–32
Abstract
A diode-laser sensor system based on absorption spectroscopy techniques has been developed to monitor CH(4) nonintrusively in high-temperature environments. Fundamental spectroscopic parameters, including the line strengths of the transitions in the R(6) manifold of the 2ν(3) band near 1.646 μm, havebeen determined from high-resolution absorption measurements in a heated static cell. In addition, acorrected expression for the CH(4) partition function has been validated experimentally over thetemperature range from 400 to 915 K. Potential applications of the diode-laser sensor system includeprocess control, combustion measurements, and atmospheric monitoring.
View details for
Web of Science ID A1996VA60800007
View details for
PubMedID 21102806
Laser-induced fluorescence measurements of resonance broadening in xenon
PHYSICAL REVIEW A
Cedolin, R. J., Hanson, R. K., Cappelli, M. A.
1996
54 (1)
: 335-342
View details for
Web of Science ID A1996UX03400038
Instantaneous three-dimensional flow visualization of a supersonic mixing layer
EXPERIMENTS IN FLUIDS
Island, T. C., PATRIE, B. J., Mungal, M. G., Hanson, R. K.
1996
20 (4)
: 249-256
View details for
Web of Science ID A1996TY89200003
Temperature imaging in a supersonic free jet of combustion gases with two-line OH fluorescence
APPLIED OPTICS
Palmer, J. L., Hanson, R. K.
1996
35 (3)
: 485-499
Abstract
Temperature measurements were performed in a shock-tunnel-generated free jet of hydrogen/oxygen reaction products diluted in argon with a nonsimultaneous, two-excitation-line planar laser-induced fluorescence technique with the hydroxyl radical (OH) as a tracer. Single-shot images were obtained with broadband excitation of isolated transitions in the A(2)Σ(+) ? X(2)Π(1, 0) band of OH near 282 nm, with broadband, temporally integrated detection of the resulting nonresonant emission. A measurement of the fluorescence lifetime in the free jet showed no variation with excited rotational level, allowing the rotational temperature to be obtained from the ratio of single-shot images with laser excitation of different rovibronic transitions.
View details for
Web of Science ID A1996TR97200018
View details for
PubMedID 21069034
Temperature and Mixture-Fraction Imaging of Gaseous Flows Using Acetone PLIF
Fluid Dynamics Conference
Hanson, R. K., Mungal, M. G., Grisch, F., Thurber, M. C., Smith, S. H., Hasselbrink, E. F.
1996
View details for
DOI 10.2514/6.1996-1964
Tunable diode laser absorption measurements of NO2 near 670 nm and 395 nm
34th Aerospace Sciences Meeting and Exhibit
Mihalcea, R. M., Baer, D. S., Hanson, R. K.
1996
View details for
DOI 10.2514/6.1996-173
LIF spectroscopy of NO and O-2 in high-pressure flames
COMBUSTION SCIENCE AND TECHNOLOGY
DIROSA, M. D., Klavuhn, K. G., Hanson, R. K.
1996
118 (4-6)
: 257-283
View details for
Web of Science ID A1996WP79900002
Combustion control and monitoring using a multiplexed diode-laser sensor system
32nd Joint Propulsion Conference and Exhibit
Furlong, E. R., Baer, D. S., Hanson, R. K.
1996
View details for
DOI 10.2514/6.1996-2763
Measurements of H2O and temperature in high-pressure environments using near-IR diode-laser absorption
Advanced Measurement and Ground Testing Conference
Nagali, V., Chou, S. I., Baer, D. S., Hanson, R. K.
1996
View details for
DOI 10.2514/6.1996-2225
Combustion control using a multiplexed diode-laser sensor system
26th International Symposium on Combustion
Furlong, E. R., Baer, D. S., Hanson, R. K.
COMBUSTION INSTITUTE.
1996
: 2851–2858
View details for
Web of Science ID 000083308500337
Real gas corrections in shock tube studies at high pressures
ISRAEL JOURNAL OF CHEMISTRY
Davidson, D. F., Hanson, R. K.
1996
36 (3)
: 321-326
View details for
Web of Science ID A1996WN99300014
Combustion control using a multiplexed diode-laser sensor system
Conference on Lasers as Tools for Manufacturing of Durable Goods and Microelectronics
Baer, D. S., Furlong, E. R., Hanson, R. K.
SPIE - INT SOC OPTICAL ENGINEERING.
1996
: 208–215
View details for
Web of Science ID A1996BF76J00021
High-pressure methane oxidation behind reflected shock waves
26th International Symposium on Combustion
Petersen, E. L., Rohrig, M., Davidson, D. F., Hanson, R. K., Bowman, C. T.
COMBUSTION INSTITUTE.
1996
: 799–806
View details for
Web of Science ID 000083308500095
Real-time process control using diode-laser absorption sensors
Conference on the Application of Tunable Diode and Other Infrared Sources for Atmospheric Studies and Industrial Process Monitoring
Baer, D. S., Furlong, E. R., Hanson, R. K.
SPIE - INT SOC OPTICAL ENGINEERING.
1996
: 205–213
View details for
Web of Science ID A1996BG67Q00021
PLIF imaging of hypersonic reactive flow around blunt bodies
26th International Symposium on Combustion
Kamel, M. R., Morris, C. I., Stouklov, I. G., Hanson, R. K.
COMBUSTION INSTITUTE.
1996
: 2909–2915
View details for
Web of Science ID 000083308500344
PLIF imaging of the supersonic reactive flows around projectiles in an expansion tube
34th Aerospace Sciences Meeting and Exhibit
Morris, C. I., Kamel, M. R., Stouklov, I. G., Hanson, R. K.
1996
View details for
DOI 10.2514/6.1996-855
Laser-induced fluorescence diagnostics for xenon Hall thrusters
32nd Joint Propulsion Conference and Exhibit
Cedolin, R. J., Hargus, W. A., Hanson, R. K., Cappelli, M. A.
1996
View details for
DOI 10.2514/6.1996-2986
Multi-Line Fluorescence Imaging of the Rotational Field in a Shock-Tunnel Free Jet
Applied Physics B
Palmer, J. L., McMillin, B. K., Hanson, R. K.
1996
63
: 167-178
View details for
DOI 10.1007/BF01095269
Real Gas Effects at High Pressures and Temperatures in Shock Tube Studies
33rd JANNAF Combustion Meeting
Davidson, D. F., Petersen, E. L., Bates, R. W., Hanson, R. K.
1996
Combustion Control using a Multiplexed Diode-Laser Sensor System
34th Aerospace Sciences Meeting and Exhibit
Furlong, E. R., Baer, D. S., Hanson, R. K.
1996
View details for
DOI 10.2514/6.1996-756
PLIF Imaging and Thermometry of NO/N2 Shock Layer Flows in an Expansion Tube
34th Aerospace Sciences Meeting and Exhibit
Houwing, A. F., Thurber, M. C., Wehe, S. D., Kamel, M., Morris, C., Hanson, R. K.,
1996
View details for
DOI 10.2514/6.1996-537
Expansion tube investigation of ram-accelerator projectile flowfields
32nd Joint Propulsion Conference and Exhibit
Morris, C. I., Kamel, M. R., Hanson, R. K.
1996
View details for
DOI 10.2514/6.1996-2680
Measurements of the OH A-X (0,0) 306nm Absorption Bandhead at 60 atm and 1735K
Journal of Quantitative Spectroscopy and Radiative Transfer
Davidson, D. F., Röhrig, M., Peterson, E. L., DiRosa, M. D., Hanson, R. K.
1996
55 (6)
: 755-762
View details for
DOI 10.1016/0022-4073(96)00024-6
A Shock Tube Study of Reactions of CN with HCN, OH and H2 using CN and OH Laser Absorption
International Journal of Chemical Kinetics
Wooldridge, S. T., Hanson, R. K., Bowman, C. T.
1996
28 (4)
: 245-258
View details for
DOI 10.1002/(SICI)1097-4601(1996)28:4<245::AID-KIN2>3.0.CO;2-V
The scalar concentration field of the axisymmetric jet in crossflow
34th Aerospace Sciences Meeting and Exhibit
Smith, S. H., Hasselbrink, E. F., Mungal, M. G., Hanson, R. K.
1996
View details for
DOI 10.2514/6.1996-198
Optical Diagnostics for Ground Testing: An Overview
invited plenary speaker at 19th AIAA Advanced Measurement and Ground Testing Technology Conf.
Hanson, R. K.
1996
Multiplexed Diode Laser Sensor System for Measurements of CO, CO2, CH4 and H2O in Combustion Flows
Symp. on Optical Sensing for Environment and Process Monitoring, Air & Waste Management Association
Mihalcea, R. M., Baer, D. S., Hanson, R. K.
1996
Ignition Delay Times of Ram Accelerator Mixtures
32nd Joint Propulsion Conference and Exhibit
Petersen, E. L., Röhrig, M., Davidson, D. F., Hanson, R. K.
1996
View details for
DOI 10.2514/6.1996-2681
Shock Tube Measurements of the Equation of State of Argon
35th Aerospace Sciences Meeting and Exhibit
Davidson, D. F., Bates, R., Petersen, E. L., Hanson, R. K.
1996
View details for
DOI 10.2514/6.1997-984
Combustion Control Using an Advanced Multiplexed Diode-Laser Sensor System
33rd JANNAF Combustion Meeting
Furlong, E. R., Baer, D. S., Hanson, R. K.
1996
Measurements of H2O in High-Pressure Flows Using Near-IR Diode-Laser Absorption
34th Aerospace Sciences Meeting and Exhibit
Nagali, V. S., Baer, D. S., Hanson, R. K.
1996
View details for
DOI 10.2514/6.1996-846
Hydrocarbon measurements using diode-laser absorption near 1.65 micron
34th Aerospace Sciences Meeting and Exhibit
Chou, S. I., Nagali, V., Baer, D. S., Hanson, R. K.
1996
View details for
DOI 10.2514/6.1996-746
Temperature Imaging with Single- and Dual-Wavelength Acetone PLIF
32nd Joint Propulsion Conference and Exhibit
Thurber, M. C., Grisch, F., Hanson, R. K.
1996
View details for
DOI 10.2514/6.1996-2936
Ram Accelerator Mixture Chemistry: Kinetics and Ignition Measurements
33rd JANNAF Combustion Meeting
Petersen, E. L., Davidson, D. F., Hanson, R. K.
1996
Combustion Control Using an Advanced Multiplexed Diode-Laser Sensor System
WSS/CI Fall Meeting
Furlong, E. R., Baer, D. S., Hanson, R. K.
1996
A SHOCK-TUBE STUDY OF METHYL-METHYL REACTIONS BETWEEN 1200 AND 2400 K
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
Davidson, D. F., DIROSA, M. D., Chang, E. J., Hanson, R. K., Bowman, C. T.
1995
27 (12)
: 1179-1196
View details for
Web of Science ID A1995TG72500004
LASER-INDUCED FLUORESCENCE MEASUREMENTS OF NO AND OH MOLE FRACTION IN FUEL-LEAN, HIGH-PRESSURE (1-10ATM) METHANE FLAMES - FLUORESCENCE MODELING AND EXPERIMENTAL VALIDATION
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
BATTLES, B. E., Hanson, R. K.
1995
54 (3)
: 521-537
View details for
Web of Science ID A1995RR23200007
SHOCK TUNNEL FLOW VISUALIZATION USING PLANAR LASER-INDUCED FLUORESCENCE IMAGING OF NO AND OH
SHOCK WAVES
Palmer, J. L., Hanson, R. K.
1995
4 (6)
: 313-323
View details for
Web of Science ID A1995QY00600003
COMMUNICATION - REVISED VALUES FOR THE RATE COEFFICIENTS OF ETHANE AND METHANE DECOMPOSITION
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
Davidson, D. F., Hanson, R. K., Bowman, C. T.
1995
27 (3)
: 305-308
View details for
Web of Science ID A1995QH52500007
EXPERIMENTAL INVESTIGATION OF VELOCITY SLIP NEAR AN ARCJET EXIT PLANE
AIAA JOURNAL
LIEBESKIND, J. G., Hanson, R. K., Cappelli, M. A.
1995
33 (2)
: 373-375
View details for
Web of Science ID A1995QK49200029
Measurements of argon collision broadening in the CN B2Σ+ ← X2Σ+(0,0) spectrum
Journal of Quantitative Spectroscopy and Radiative Transfer
Wooldridge, S. T., Hanson, R. K., Bowman, C. T.
1995
53 (5)
: 481-492
View details for
DOI 10.1016/0022-4073(95)90048-9
Scanned- and fixed-wavelength absorption diagnostics for combustion measurements using a multiplexed diode-laser sensor system
33rd Aerospace Sciences Meeting and Exhibit
Baer, D. S., Nagali, V., Furlong, E. R., Hanson, R. K., Newfield, M. E.
1995
View details for
DOI 10.2514/6.1995-426
Single-shot OH PLIF thermometry in a reacting, supersonic free jet
33rd Aerospace Sciences Meeting and Exhibit
Palmer, J. L., Hanson, R. K.
1995
View details for
DOI 10.2514/6.1995-517
PLIF imaging of NO and O2 in high-pressure flames
Optical Techniques in Fluid, Thermal, and Combustion Flow
DiRosa, M. D., Klavuhn, K. G., Hanson, R. K.
1995
View details for
DOI 10.1117/12.221555
Planar Concentration Measurements of a Jet in Cross-flow
APS/DFD Meeting
Smith, S., Hasselbrink, E., Mungal, M. G., Hanson, R. K.
1995
A Shock Tube Study of Nitric Acid Decomposition
Shock Waves @ Marseille II (Springer-Verlag)
Wooldridge, M. S., Hanson, R. K., Bowman, C. T.
1995
: 83-88
View details for
DOI 10.1007/978-3-642-78832-1_14
PLIF thermometry in a high temperature shock layer flow over a cylinder in a supersonic jet
33rd Aerospace Sciences Meeting and Exhibit
Houwing, A. F., Palmer, J. L., Boyce, R. R., Thurber, M. C., Wehe, S. D., Hanson, R. K.
1995
View details for
DOI 10.2514/6.1995-515
LIF lineshape analysis of the xenon 6s(3/2)2 exp 0-6p(3/2)2 and 6s(3/2)1 exp 0-6p(1/2)0 transitions in a glow discharge
26th Plasmadynamics and Lasers Conference
Cedolin, R. J., Hanson, R. K., Cappelli, M. A.
1995
View details for
DOI 10.2514/6.1995-1969
PLIF imaging of NO and O-2 in high-pressure flames
Conference on Optical Techniques in Fluid, Thermal, and Combustion Flow
DIROSA, M. D., Klavuhn, K. G., Hanson, R. K.
SPIE - INT SOC OPTICAL ENGINEERING.
1995
: 509–518
View details for
Web of Science ID A1995BE37R00051
Development of an Expansion Tube for Investigation of Combustion in Supersonic Projectile Flowfields
31st Joint Propulsion Conference and Exhibit
Morris, C. I., Kamel, M., Thurber, M. C., Wehe, S. D., Hanson, R. K.
1995
View details for
DOI 10.2514/6.1995-2717
Expansion Tube Studies of Hypersonic Reactive Flows around Projectiles
33rd AIAA Aerospace Sciences Meeting
Kamel, M. R., Morris, C. I., Thurber, M. C., Wehe, S. D., Hanson, R. K.
1995
View details for
DOI 10.2514/6.1995-233
Expansion Tube Investigation of Combustion Structures in Supersonic Projectile Flowfields
20th Int. Symp. on Shock Waves
Morris, C. I., Kamel, M., Thurber, M. C., Wehe, S. D., Hanson, R. K.
1995
Development and Application of a Diode Laser Absorption Diagnostic for Shock Tube Studies of CO2 Reactions
WSS/CSS Meeting of Comb. Inst.
Wooldridge, M. S., Hanson, R. K., Bowman, C. T.
1995
Shock-Induced Ignition of High-Pressure H2-O2-Ar and CH4-O2-Ar Mixtures
31st Joint Propulsion Conference and Exhibit
Petersen, E. L., Davidson, D. F., Röhrig, M., Hanson, R. K.
1995
View details for
DOI 10.2514/6.1995-3113
Semiconductor Laser Diagnostics of Kinetic and Population Temperatures in High-Enthalpy Flows
19th Int. Symp. on Shock Waves (ISSW 19)
Chang, H. A., Baer, D. S., Hanson, R. K.
1995
View details for
DOI 10.1007/978-3-642-78832-1_5
High-Pressure Shock Tube Measurements of Ignition Times in Stoichiometric H2/O2/Ar Mixtures
20th Int. Symp. on Shock Waves
Petersen, E. L., Davidson, D. F., Röhrig, M., Hanson, R. K.
1995
Dual-Laser PLIF Imaging Techniques for Shock Tube Studies of Mixing and Combustion
19th Int. Symp. on Shock Waves (ISSW 19)
McMillin, B. K., Seitzman, J. M., Palmer, J. L., Hanson, R. K.
1995
: 315–20
View details for
DOI 10.1007/978-3-642-78829-1_51
An Improved Determination of the 216.615 nm Absorption Coefficient for the Methyl Radicals
Journal of Quantitative Spectroscopy and Radiative Transfer
Davidson, D. F., DiRosa, M. D., Chang, E. J., Hanson, R. K.
1995
53 (5)
: 581-583
View details for
DOI 10.1016/0022-4073(95)90056-X
Temperature Measurement by Acetone LIF with Dual-Wavelength Excitation
WSS/CI paper
Grisch, F., Thurber, M. C., Hanson, R. K.
1995
Simultaneous Laser Absorption Measurements of CN and OH in a Shock Tube Study of HCN + OH -> Products
Joint Technical Meeting of CSS and WSS, Mexican National Section, and American Flame Research Committee
Wooldridge, S. T., Hanson, R. K., Bowman, C. T.
1995
Diode-Laser Sensor System for Methane, Water and Temperature Measurements in Combustion Environments
WSS/CI paper
Nagali, V., Furlong, E. R., Chou, S. I., Mihalcea, R. M., Baer, D. S., Hanson, R. K.
1995
Development of an Expansion Tube for Investigation of Combustion in Supersonic Projectile Flowfields
RAMACII, 2nd Int. Meeting on Ram Accelerators
Morris, C. I., Kamel, M., Thurber, M. C., Wehe, S. D., Hanson, R. K.
1995
The Role of Lasers in Shock Tube Studies of Chemical Kinetics
19th Int. Symp. on Shock Waves (ISSW 19)
Hanson, R. K.
1995
: 7–13
View details for
DOI 10.1007/978-3-642-78832-1_2
Optimized Chemical Kinetics for Modeling Natural Gas Combustion
American Flame Research Committee
Frenklach, M., Wang, H., Goldenberg, M., Bowman, C. T., Hanson, R. K., Smith, G. P., Golden, D. M., Gardiner Jr, W. C., Lissianski, V.
1995
Diode-Laser Sensor System for Multi-Species and Multi-Parameter Measurements in Combustion Flows
31st Joint Propulsion Conference and Exhibit
Nagali, V., Furlong, T., Chou, S. I., Mihalcea, R. M., Baer, D. S., Hanson, R. K.
1995
View details for
DOI 10.2514/6.1995-2684
Absorption Lineshape Measurements of the OH A-X (0,0) 306 nm Bandhead at High Pressures
20th Int. Symp. on Shock Waves
Davidson, D. F., Röhrig, M., Petersen, E. L., DiRosa, M. D., Hanson, R. K.
1995
A Laser Photolysis Shock Tube Study of the Reaction of OH with NH3
19th Int. Symp. on Shock Waves (ISSW 19)
Mertens, J. D., Wooldridge, M. S., Hanson, R. K.
1995
: 37–42
View details for
DOI 10.1007/978-3-642-78832-1_6
Simultaneous Laser Absorption Measurements of CN and OH in a Shock Tube Study of HCN + OH -> Products
International Journal of Chemical Kinetics
Wooldridge, S. T., Hanson, R. K., Bowman, C. T.
1995
27 (11)
: 1075-1087
View details for
DOI 10.1002/kin.550271105
Imaging of Hypersonic Reactive Flow around Cylinders and Wedges
WSS/CI paper, Stanford, CA
Kamel, M., Morris, C. I., Stouklov, I., Hanson, R. K.
1995
: 95F-196
A Shock Tube Study of the Pyrolysis of NO2
WSS/CI
Röhrig, M., Petersen, E. L., Davidson, D. F., Hanson, R. K.
1995
A Shock Tube Study of High-Pressure Methane Oxidation
WSS/CI paper
Petersen, E. L., Davidson, D. F., Röhrig, M., Hanson, R. K., Bowman, C. T.
1995
Recent Developments in Laser-Based Absorption and Fluorescence Diagnostics for Gases
8th Int. Symp. on Transport Phenomena
Hanson, R. K., Baer, D. S., McMillin, B. K., Yip, B.
1995
COLLISION BROADENING AND SHIFT OF NO GAMMA(0,0) ABSORPTION-LINES BY O2 AND H2O AT HIGH-TEMPERATURES
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
DIROSA, M. D., Hanson, R. K.
1994
52 (5)
: 515-529
View details for
Web of Science ID A1994PW15700001
TEMPERATURE-DEPENDENT COLLISION-BROADENING PARAMETERS OF H2O LINES IN THE 1.4-MU-M REGION USING DIODE-LASER ABSORPTION-SPECTROSCOPY
JOURNAL OF MOLECULAR SPECTROSCOPY
Langlois, S., BIRBECK, T. P., Hanson, R. K.
1994
167 (2)
: 272-281
View details for
Web of Science ID A1994PJ14200004
A COMBINED OH/ACETONE PLANAR LASER-INDUCED FLUORESCENCE IMAGING TECHNIQUE FOR VISUALIZING COMBUSTING FLOWS
EXPERIMENTS IN FLUIDS
Yip, B., Miller, M. F., Lozano, A., Hanson, R. K.
1994
17 (5)
: 330-336
View details for
Web of Science ID A1994PL46500006
DUAL DIODE-LASER FIBEROPTIC DIAGNOSTIC FOR WATER-VAPOR MEASUREMENTS
OPTICS LETTERS
Arroyo, M. P., BIRBECK, T. P., Baer, D. S., Hanson, R. K.
1994
19 (14)
: 1091-1093
Abstract
We present a novel diode-laser diagnostic for water-vapor measurements based on absorption spectroscopy. Two InGaAsP diode lasers were used to record H(2)O absorption line shapes near 1395 nm at a 3-kHz repetition rate along a single path through a water-vapor flow field generated in a shock tube. The use of two lasers permits simultaneous line-shape measurements in different spectral regions and facilitates the selection of appropriate line pairs for thermometry. The wavelength tuning rate was determined by use of a fiber-optic device known as a ring interferometer. Flow-field conditions (1320 K, 0.3 atm) inferred from measured line shapes compared favorably with calculated values.
View details for
Web of Science ID A1994NW48300027
View details for
PubMedID 19844543
VUV ABSORPTION DIAGNOSTIC FOR SHOCK-TUBE KINETICS STUDIES OF C2H4
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Zelson, L. S., Davidson, D. F., Hanson, R. K.
1994
52 (1)
: 31-43
View details for
Web of Science ID A1994PB53300003
APPLICATION OF QUANTITATIVE 2-LINE OH PLANAR LASER-INDUCED FLUORESCENCE FOR TEMPORALLY RESOLVED PLANAR THERMOMETRY IN REACTING FLOWS
APPLIED OPTICS
Seitzman, J. M., Hanson, R. K., DeBarber, P. A., Hess, C. F.
1994
33 (18)
: 4000-4012
Abstract
A temporally resolved approach for measurement of two-dimensional temperature fields in reacting flows is experimentally investigated. The method, based on planar laser-induced fluorescence of the hydroxyl (OH) radical, is applicable in many combustion environments, including variable density flow fields. As a means of examining the accuracy of the technique, temperature images, from 1300 to 3000 K and 0.4 to 3 atm, have been acquired in shock-heated H(2)-O(2)-Ar flows with a two-laser, two-image ratio scheme. A complete measurement system for producing accurate, effectively instantaneous temperature images is described; the system includes single-shot monitors for laser-sheet energy distributions and spectral profiles. Temperature images obtained with the OH A(2)Σ(+) ? X(2)II (1, 0) P(1)(7)-Q(2)(11) transition pair exhibit a systematic error of only 7% over the entire range of conditions, with the error most likely dominated by shot-to-shot fluctuations in the lasers'spectral profiles. The largest error source in the instantaneous temperature images is photon shot noise. A group of OH transition pairs that provide good temperature sensitivity and strong signals for reduced shot-noise error over a range of flow-field conditions is also presented.
View details for
Web of Science ID A1994NU52500030
View details for
PubMedID 20935747
SENSITIZED PHOSPHORESCENCE - A GAS-PHASE MOLECULAR MIXING DIAGNOSTIC
EXPERIMENTS IN FLUIDS
Yip, B., Lozano, A., Hanson, R. K.
1994
17 (1-2)
: 16-23
View details for
Web of Science ID A1994NW36500003
DIODE-LASER ABSORPTION TECHNIQUE FOR SIMULTANEOUS MEASUREMENTS OF MULTIPLE GASDYNAMIC PARAMETERS IN HIGH-SPEED FLOWS CONTAINING WATER-VAPOR
APPLIED OPTICS
Arroyo, M. P., Langlois, S., Hanson, R. K.
1994
33 (15)
: 3296-3307
Abstract
A distributed-feedback InGaAsP diode laser, emitting near 1.38 µm, was used to acquire spectrally resolved absorption profiles of H(2)O lines in the ν(1) + ν(3) band at a repetition rate of 10 kHz. The profiles were used for simultaneous measurements of flow parameters in high-speed, one-dimensional (1-D) transient flows generated in a shock tube. Velocity was determined from the Doppler shift, which was measured with a pair of profiles simultaneously acquired at different angles with respect to the flow direction. Temperature was determined from the intensity ratio of two adjacent lines. Pressure and density were found from the fractional absorption. From these primary gasdynamic variables, the mass and momentum fluxes were determined. Experiments were conducted with three different gas mixtures in the shock tube: pure H(2)O at initial pressures lower than 3 Torr, up to 6% of H(2)O in O(2) at initial pressures below 120 Torr, and up to 8% of H(2)O in O(2) at initial pressures below 35 Torr. In the third case, pyrolysis of H(2) /O(2) behind incident shocks produced known yields of H(2)O. With all three mixtures, results compare well with 1-D shock calculations. This H(2)O diagnostic strategy shows promise for applications in both ground and flight testing.
View details for
Web of Science ID A1994NM30800022
View details for
PubMedID 20885702
INSTANTANEOUS 3-DIMENSIONAL FLOW VISUALIZATION BY RAPID ACQUISITION OF MULTIPLE PLANAR FLOW IMAGES
OPTICAL ENGINEERING
PATRIE, B. J., Seitzman, J. M., Hanson, R. K.
1994
33 (3)
: 975-980
View details for
Web of Science ID A1994NA36000044
COLLISION-BROADENING AND COLLISION-SHIFT OF NO GAMMA(0,0) ABSORPTION-LINES BY H2O, O-2, AND NO AT 295-K
JOURNAL OF MOLECULAR SPECTROSCOPY
DIROSA, M. D., Hanson, R. K.
1994
164 (1)
: 97-117
View details for
Web of Science ID A1994MZ37700007
Semiconductor Laser Diagnostics for Xenon Plasmas
30th Joint Propulsion Conference and Exhibit
Cedolin, R. J., Hanson, R. K., Cappelli, M. A.
1994
View details for
DOI 10.2514/6.1994-2739
Semiconductor laser absorption diagnostics of atomic nitrogen for hypersonic flowfield measurements
32nd Aerospace Sciences Meeting and Exhibit
Chang, H. A., Baer, D. S., Hanson, R. K.
1994
View details for
DOI 10.2514/6.1994-385
DIODE-LASER MEASUREMENTS OF H2O LINE-INTENSITIES AND SELF-BROADENING COEFFICIENTS IN THE 1.4-MU-M REGION
JOURNAL OF MOLECULAR SPECTROSCOPY
Langlois, S., BIRBECK, T. P., Hanson, R. K.
1994
163 (1)
: 27-42
View details for
Web of Science ID A1994MN46200004
Instantaneous three-dimensional flow visualization by rapid acquisition of multiple planar flow images
Optical Engineering
Patrie, B. J., Seitzman, J. M., Hanson, R. K.
1994
View details for
DOI 10.1117/12.160888
Comparison of NO and OH PLIF Temperature Measurements in a Scramjet Model Flowfield
29th Joint Propulsion Conference and Exhibit
McMillin, B. K., Seitzman, J. M., Hanson, R. K.
1994
View details for
DOI 10.2514/6.1993-2035
CONCENTRATION MEASUREMENTS IN A TRANSVERSE JET BY PLANAR LASER-INDUCED FLUORESCENCE OF ACETONE
AIAA JOURNAL
Lozano, A., Smith, S. H., Mungal, M. G., Hanson, R. K.
1994
32 (1)
: 218-221
View details for
Web of Science ID A1994MQ44700032
PLIF Imaging of Transient Shock Phenomena in Hypersonic Flows
25th Plasmadynamics and Lasers Conference
Palmer, J. L., Houwing, F. P., Hanson, R. K.
1994
View details for
DOI 10.2514/6.1994-2642
A Shock Tube Study of the OH + OH -> H2O + O Reaction
International Journal of Chemical Kinetics
Wooldridge, M. S., Hanson, R. K., Bowman, C. T.
1994
26 (4)
: 389-401
View details for
DOI 10.1002/kin.550260402
Quantitative Planar Laser-Induced Fluorescence Imaging of Radical Species in High Pressure Flames
32nd Aerospace Sciences Meeting and Exhibit
Battles, B., Seitzman, J. M., Hanson, R. K.
1994
View details for
DOI 10.2514/6.1994-229
Multi-Species Diode-Laser Sensor System for H2O and O2 Measurements
25th Plasmadynamics and Lasers Conference
Baer, D. S., Hanson, R. K., Newfield, M. E., Gopaul, N. K.
1994
View details for
DOI 10.2514/6.1994-2643
Thermochemical Nonequilibrium Design Calculations for Detailed Hypervelocity Experiments in the LENS Facility
6th Joint Thermophysics and Heat Transfer Conference
Boyd, I. D., Srinivasan, A., Muntz, E. P., Hanson, R. K., Holden, M. S.,
1994
View details for
DOI 10.2514/6.1994-2097
PLIF Measurements of Temperature and Velocity in a Reacting Supersonic Free Jet with OH
32nd Aerospace Sciences Meeting and Exhibit
Palmer, J., Hanson, R. K.
1994
View details for
DOI 10.2514/6.1994-618
A Shock Tube Study of the Pyrolysis of C2H5I
ESS/CI Meeting
Mertens, J. D., Wooldridge, M. S., Hanson, R. K.
1994
Reexamination of Shock-Tube Measurements of the Rate Coefficient of H + O2 -> OH + O
Journal of Physical Chemistry
Yu, C. L., Frenklach, M., Masten, D. A., Hanson, R. K., Bowman, C. T.
1994
98 (17)
: 4770-4771
View details for
DOI 10.1021/j100068a048
Multiple Scalar Planar Fluorescence Imaging for Reacting Flows
32nd Aerospace Sciences Meeting and Exhibit
Seitzman, J. M., Miller, M. F., Hanson, R. K., DeBarber, P., Hess, C.
1994
View details for
DOI 10.2514/6.1994-228
Multiplexed Diode-Laser Sensor System for Simultaneous H2O, O2 and Temperature Measurements
Optics Letters
Baer, D. S., Hanson, R. K., Newfield, M. E., Gopaul, N. K.
1994
19
: 1900-1902
View details for
DOI 10.1364/OL.19.001900
An Experimental Investigation of Supersonic Reacting Mixing Layers
32nd Aerospace Sciences Meeting and Exhibit
Miller, M. F., Island, T. C., Seitzman, J. M., Bowman, C. T., Mungal, M. G., Hanson, R. K.
1994
View details for
DOI 10.2514/6.1994-823
2-LINE PLANAR FLUORESCENCE FOR TEMPORALLY RESOLVED TEMPERATURE IMAGING IN A REACTING SUPERSONIC-FLOW OVER A BODY
APPLIED PHYSICS B-PHOTOPHYSICS AND LASER CHEMISTRY
Seitzman, J. M., Hanson, R. K.
1993
57 (6)
: 385-391
View details for
Web of Science ID A1993ML59700003
A STUDY OF ETHANE DECOMPOSITION IN A SHOCK-TUBE USING LASER-ABSORPTION OF CH3
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
Davidson, D. F., DIROSA, M. D., Hanson, R. K., Bowman, C. T.
1993
25 (11)
: 969-982
View details for
Web of Science ID A1993MC21900008
LASER-INDUCED FLUORESCENCE DIAGNOSTIC FOR TEMPERATURE AND VELOCITY-MEASUREMENTS IN A HYDROGEN ARCJET PLUME
APPLIED OPTICS
LIEBESKIND, J. G., Hanson, R. K., Cappelli, M. A.
1993
32 (30)
: 6117-6127
Abstract
A diagnostic has been developed to measure velocity and translational temperature in the plume of a 1-kW-class arcjet thruster operating on hydrogen. Laser-induced fluorescence with a narrow-band cw laser is used to probe the Balmer α transition of excited atomic hydrogen. The velocity is determined from the Doppler shift of the fluorescence excitation spectrum, whereas the temperature is inferred from the lineshape. Analysis shows that although Doppler broadening is the only significant broadening mechanism, the fine structure of the transition must be taken into account. Near the exit plane, axial velocities vary from 4 to 14 km/s, radial velocities vary from 0 to 4 km/s, and swirl velocities are shown to be relatively small. Temperatures from 1000 to 5000 K indicate high dissociation fractions.
View details for
Web of Science ID A1993MC05300035
View details for
PubMedID 20856439
ABSORPTION-MEASUREMENTS OF WATER-VAPOR CONCENTRATION, TEMPERATURE, AND LINE-SHAPE PARAMETERS USING A TUNABLE INGAASP DIODE-LASER
APPLIED OPTICS
Arroyo, M. P., Hanson, R. K.
1993
32 (30)
: 6104-6116
Abstract
A tunable diode laser diagnostic based on spectrally resolved laser absorption has been developed to detect water vapor. The system uses a distributed feedback InGaAsP diode laser, emitting at ~ 1.38 µm. The diode laser is tuned in wavelength by modulation of the current, resulting in 1-cm(-1) tuning at 80-Hz repetition rate. The directly measured absorption spectra yield values for water-vapor concentration and temperature, as well as a collision-broadening line shape. To our knowledge, we accurately determined required data for H(2)O line strengths and self-broadening coefficients for several spectral lines in a static cell filled with pure water vapor. The temperature and concentration of the water vapor present in laboratory room air and in the postflame gases above a methane-air flat flame burner have also been measured. These results agree well with calculated values and independent measurements.
View details for
Web of Science ID A1993MC05300034
View details for
PubMedID 20856438
LASER-DIODE WAVELENGTH-MODULATION SPECTROSCOPY FOR SIMULTANEOUS MEASUREMENT OF TEMPERATURE, PRESSURE, AND VELOCITY IN SHOCK-HEATED OXYGEN FLOWS
APPLIED OPTICS
PHILIPPE, L. C., Hanson, R. K.
1993
32 (30)
: 6090-6103
Abstract
Wavelength modulation at 10 MHz of an AlGaAs laser diode, superposed on repetitive linear scans of wavelength, is applied to measure second-harmonic absorption line shapes of oxygen in the A band. Theoretical expressions of the harmonic line shapes, including the effect of laser amplitude modulation and varying modulation depth, are presented. A least-squares fit of the experimental line shapes to theoretical second-harmonic line shapes permits simultaneous determination of the temperature and the pressure. The use of high-repetition-rate (10-kHz) linear scans of the studied wavelength region permits application of the technique to high-speed unidimensional transient flows generated in a shock tube; velocity is derived from the Doppler shift of the absorption profiles.
View details for
Web of Science ID A1993MC05300033
View details for
PubMedID 20856437
MODELING OF SPATIAL DISTORTIONS IN A HIGH-SPEED IMAGE CONVERTER CAMERA
REVIEW OF SCIENTIFIC INSTRUMENTS
PATRIE, B. J., Seitzman, J. M., Hanson, R. K.
1993
64 (10)
: 2901-2904
View details for
Web of Science ID A1993MC13700027
CONTINUOUS-WAVE DYE-LASER TECHNIQUE FOR SIMULTANEOUS, SPATIALLY-RESOLVED MEASUREMENTS OF TEMPERATURE, PRESSURE, AND VELOCITY OF NO IN AN UNDEREXPANDED FREE JET
APPLIED OPTICS
DIROSA, M. D., Chang, A. Y., Hanson, R. K.
1993
32 (21)
: 4074-4087
Abstract
Gas dynamic quantities within an underexpanded nitrogen free jet, seeded with 0.5% NO, were measured nonintrusively by using an intracavity-doubled, rapid-tuning, cw ring dye laser. The UV beam passed obliquely through the jet axis, and its frequency repetitively scanned across adjacent rotational lines in the NO gamma band near 225 nm at a rate of 4 kHz. Spatially resolved excitation scans were obtained by monitoring the induced broadband fluoresence. Modeling the Doppler-shifted excitation scans with Voigt profiles permitted simultaneous determinations of NO velocity, rotational temperature, and pressure. Zero Doppler shift was referenced to an absorption trace obtained across a static cell and recorded concurrently with the excitation scan. Typically, the measured and predicted axial distributions agreed within 10%. At high Mach numbers there was evidence of rotational freezing of NO.
View details for
Web of Science ID A1993LN83700040
View details for
PubMedID 20830049
A CW LASER-ABSORPTION DIAGNOSTIC FOR METHYL RADICALS
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Davidson, D. F., Chang, A. Y., DIROSA, M. D., Hanson, R. K.
1993
49 (5)
: 559-571
View details for
Web of Science ID A1993LB52500008
COMPARISON OF EXCITATION TECHNIQUES FOR QUANTITATIVE FLUORESCENCE IMAGING OF REACTING FLOWS
AIAA JOURNAL
Seitzman, J. M., Hanson, R. K.
1993
31 (3)
: 513-519
View details for
Web of Science ID A1993KU60600015
Planar Fluorescence Imaging in Gases
Chapter 6, in Experimental Methods for Flows with Combustion
Seitzman, J. M., Hanson, R. K.
edited by Taylor, A.
Academic Press.
1993
: 405–466
RESONANT HOLOGRAPHIC INTERFEROMETRY - A MULTIPOINT, MULTIPARAMETER DIAGNOSTICS TOOL FOR HYPERSONIC FLOW
NATO Advanced Research Workshop on New Trends in Instrumentation for Hypersonic Research
Trolinger, J. D., Hanson, R. K., Yip, B., Battles, B.
KLUWER ACADEMIC PUBL.
1993
: 123–134
View details for
Web of Science ID A1993BC72S00011
LASER DIAGNOSTICS FOR COMBUSTION AND PROPULSION
CONF ON LASER APPLICATIONS IN COMBUSTION AND COMBUSTION DIAGNOSTICS
Hanson, R. K.
SPIE - INT SOC OPTICAL ENGINEERING.
1993
: 84–97
View details for
Web of Science ID A1993BY44U00007
A comparison of arcjet plume properties to model predictions
31st Aerospace Sciences Meeting
Cappelli, M. A., Liebeskind, J. G., Hanson, R. K., Butler, G. W., Redmond, W. A., King, D. Q.
1993
View details for
DOI 10.2514/6.1993-820
Compressibility effects in a reacting mixing layer
29th Joint Propulsion Conference and Exhibit
Miller, M. F., Island, T. C., Seitzman, J. M., Bowman, C. T., Mungal, M. G., Hanson, R. K.
1993
View details for
DOI 10.2514/6.1993-1771
Two-line instantaneous temperature imaging of NO in a SCRAMJET model flowfield
31st Aerospace Sciences Meeting
McMillin, B. K., Palmer, J. L., Seitzman, J. M., Hanson, R. K.
1993
View details for
DOI 10.2514/6.1993-44
LASER-BASED DIAGNOSTICS FOR HYPERSONIC FLOWS
NATO Advanced Research Workshop on New Trends in Instrumentation for Hypersonic Research
Hanson, R. K.
KLUWER ACADEMIC PUBL.
1993
: 185–194
View details for
Web of Science ID A1993BC72S00016
Plume characteristics of an arcjet thruster
29th Joint Propulsion Conference and Exhibit
Liebeskind, J. G., Hanson, R. K., Cappelli, M. A.
1993
View details for
DOI 10.2514/6.1993-2530
Semiconductor laser absorption diagnostics of atomic oxygen for atmospheric-pressure plasmas
31st Aerospace Sciences Meeting
Baer, D. S., Chang, H. A., Hanson, R. K.
1993
View details for
DOI 10.2514/6.1993-822
Gas phase molecular mixing measurements using the acetone-biacetyl system
31st Aerospace Sciences Meeting
Yip, B., Lozano, A., Hanson, R. K.
1993
View details for
DOI 10.2514/6.1993-221
Planar laser-induced fluorescence temperature measurements in free jet flows with vibrational nonequilibrium
31st Aerospace Sciences Meeting
Palmer, J. L., Hanson, R. K.
1993
View details for
DOI 10.2514/6.1993-46
Planar imaging at high framing rates - System characterization and measurements. II
31st Aerospace Sciences Meeting
Patrie, B. J., Seitzman, J. M., Hanson, R. K.
1993
View details for
DOI 10.2514/6.1993-364
Planar imaging for 3D flow visualization
20th International Congress on High Speed Photography and Photonics
Patrie, B. J., Seitzman, J. M., Hanson, R. K.
1993
View details for
DOI 10.1117/12.145718
PLANAR IMAGING FOR 3-D FLOW VISUALIZATION
20TH INTERNATIONAL CONGRESS ON HIGH-SPEED PHOTOGRAPHY AND PHOTONICS
PATRIE, B. J., Seitzman, J. M., Hanson, R. K.
SPIE - INT SOC OPTICAL ENGINEERING.
1993
: 889–900
View details for
Web of Science ID A1993BY61B00096
An Experimental Study of the Structure of a Compressible, Reacting Mixing Layer
31st Aerospace Sciences Meeting
Miller, M. F., Island, T. C., Yip, B., Bowman, C. T., Mungal, M. G., Hanson, R. K.
1993
View details for
DOI 10.2514/6.1993-354
Semiconductor Laser Diagnostics of Atomic Oxygen for Hypersonic Flowfield Measurements
31st Aerospace Sciences Meeting
Chang, H. A., Baer, D. S., Hanson, R. K.
1993
View details for
DOI 10.2514/6.1993-628
A Shock Tube Study of the Reactions of CN and NCO with NO2
WSS/CI Fall meeting
Woolridge, S., Hanson, R. K., Bowman, C. T.
1993
Shock Tube Measurements of the Major Product Channels of N2O + O
18th International Symposium on Shock Waves
Davidson, D. F., DiRosa, M. D., Chang, A. Y., Hanson, R. K.
1993
Development and Application of a VUV Absorption Diagnostic for Shock Tube Kinetics Studies of C2H4
WSS/CI Fall meeting
Zelson, L. S., Davidson, D. F., Hanson, R. K.
1993
Flow and Particle Diagnostics. Multi-Parameter and Multi-Point Measurements
Berichte der Bunsengesellschaft für physikalische Chemie
Hanson, R. K., Baer, D. S., McMillin, B. J., Arroyo, P.
1993
: 1548–1554
View details for
DOI 10.1002/bbpc.19930971209
LIF Measurements of Species Velocities in an Arcjet Plume
23rd Int. Elec. Prop. Conf.
Liebeskind, J. G., Hanson, R. K., Cappelli, M. A.
1993
Temperature Measurements in Gases Using Planar Laser-Induced Fluorescence Imaging of NO
Applied Optics
Lee, M. P., McMillin, B. K., Hanson, R. K.
1993
32 (27)
: 5379-5396
View details for
DOI 10.1364/AO.32.005379
Semiconductor Laser Diagnostics of Atomic Oxygen in Atmospheric Pressure Plasmas
Journal of Quantitative Spectroscopy and Radiative Transfer
Baer, D. S., Chang, H. A., Hanson, R. K.
1993
50 (6)
: 621-633
View details for
DOI 10.1016/0022-4073(93)90030-L
Scalar Mixing in the Subsonic Jet in Crossflow
AGARD 72nd Fluid Dynamics Meeting
Smith, S. H., Lozano, A., Mungal, M. G., Hanson, R. K.
1993
Single-Shot Velocimetry Using Planar Laser-Induced Fluorescence Imaging of Nitric Oxide
29th Joint Propulsion Conference and Exhibit
Palmer, J. L., Hanson, R. K.
1993
View details for
DOI 10.2514/6.1993-2020
A Direct Comparison of Arcjet Thruster Properties to Model Predictions
23rd Int. Elec. Prop. Conf.
Cappelli, M. A., Liebeskind, J. G., Hanson, R. K., Butler, G. W., King, D. Q.
1993
Development of a CW Laser Absorption Diagnostic for CN in Shock Tube Flows
Journal of Quantitative Spectroscopy and Radiative Transfer
Wooldridge, S. T., Hanson, R. K., Bowman, C. T.
1993
50 (1)
: 19-34
View details for
DOI 10.1016/0022-4073(93)90125-2
Temporally Resolved, Two-Line Fluorescence Imaging of NO Temperature in a Transverse Jet in a Supersonic Cross Flow
Applied Optics
McMillin, B. K., Palmer, J. L., Hanson, R. K.
1993
32 (36)
: 7532-7545
View details for
DOI 10.1364/AO.32.007532
Semiconductor laser-based measurements of quench rates in an atmospheric pressure plasma by using saturated-fluorescence spectroscopy
Applied Optics
Baer, D. S., Hanson, R. K.
1993
32 (6)
: 948-955
View details for
DOI 10.1364/AO.32.000948
Simultaneous OH and Acetone Fluorescence Imaging in Diffusion Flames
Joint Meeting of Italian and Spanish Sections of the Combustion Instituto
Lozano, A., Yip, B., Hanson, R. K.
1993
Instantaneous Planar Thermometry of Shock-Heated Flows using PLIF of OH
31st Aerospace Sciences Meeting
Seitzman, J. M., Palmer, J. L., Antonio, A. L., Hanson, R. K., DeBarber, P. A., Hess, C. F.
1993
View details for
DOI 10.2514/6.1993-802
Quantitative LIF and PLIF Diagnostics
invited paper at 3rd Int. Symp. on Special Topics in Chemical Propulsion: Nonintrusive Diagnostics
Hanson, R. K.
1993
FLUORESCENCE DIAGNOSTICS FOR ATMOSPHERIC-PRESSURE PLASMAS USING SEMICONDUCTOR-LASERS
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
Baer, D. S., Chang, H. A., Hanson, R. K.
1992
9 (11)
: 1968-1978
View details for
Web of Science ID A1992JW72400004
ACETONE - A TRACER FOR CONCENTRATION MEASUREMENTS IN GASEOUS FLOWS BY PLANAR LASER-INDUCED FLUORESCENCE
EXPERIMENTS IN FLUIDS
Lozano, A., Yip, B., Hanson, R. K.
1992
13 (6)
: 369-376
View details for
Web of Science ID A1992JV71900002
TUNABLE DIODE-LASER ABSORPTION DIAGNOSTICS FOR ATMOSPHERIC-PRESSURE PLASMAS
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Baer, D. S., Hanson, R. K.
1992
47 (6)
: 455-475
View details for
Web of Science ID A1992JB78500002
CH-ATOM AND C-ATOM TIME HISTORIES IN DILUTE HYDROCARBON PYROLYSIS - MEASUREMENTS AND KINETICS CALCULATIONS
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
Dean, A. J., Hanson, R. K.
1992
24 (6)
: 517-532
View details for
Web of Science ID A1992HU43300001
DEGENERATE 4-WAVE-MIXING TEMPERATURE-MEASUREMENTS IN A FLAME
OPTICS LETTERS
Yip, B., Danehy, P. M., Hanson, R. K.
1992
17 (10)
: 751-753
Abstract
Multiplex degenerate four-wave mixing is performed by using OH radicals in an atmospheric-pressure hydrogen-oxygen flame. The ratio of the signal intensities from two OH transitions simultaneously pumped by a single laser pulse is used to determine the local instantaneous flame temperature.
View details for
Web of Science ID A1992HT34400018
View details for
PubMedID 19794619
TEMPERATURE-DEPENDENCE OF COLLISION BROADENING AND SHIFT IN THE NO A[-X (0,0) BAND IN THE PRESENCE OF ARGON AND NITROGEN
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Chang, A. Y., DIROSA, M. D., Hanson, R. K.
1992
47 (5)
: 375-390
View details for
Web of Science ID A1992HZ28800008
LASER-PHOTOLYSIS SHOCK-TUBE STUDIES OF RADICAL REACTIONS
Hanson, R. K.
AMER CHEMICAL SOC.
1992
: 14-PHYS
View details for
Web of Science ID A1992HK16202110
EMISSION AND LASER-INDUCED FLUORESCENCE MEASUREMENTS IN A SUPERSONIC JET OF PLASMA-HEATED NITROGEN
JOURNAL OF PHYSICS D-APPLIED PHYSICS
Cohen, L. M., Hanson, R. K.
1992
25 (3)
: 339-351
View details for
Web of Science ID A1992HJ75000001
A SHOCK-TUBE STUDY OF REACTIONS OF ATOMIC OXYGEN WITH ISOCYANIC ACID
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
Mertens, J. D., Chang, A. Y., Hanson, R. K., Bowman, C. T.
1992
24 (3)
: 279-295
View details for
Web of Science ID A1992HE02400005
PLANAR LASER-INDUCED FLUORESCENCE IMAGING OF SHOCK-TUBE FLOWS WITH VIBRATIONAL NONEQUILIBRIUM
21ST CONF ON FLUID DYNAMICS, PLASMA DYNAMICS, AND LASERS
MCMILLIN, B. K., Lee, M. P., Hanson, R. K.
AMER INST AERONAUT ASTRONAUT.
1992
: 436–43
View details for
Web of Science ID A1992HE96700020
Hydroxyl Density Measurements in a Flame with Resonant Holographic Interferometry
30th Aerospace Sciences Meeting and Exhibit
Trolinger, J. D., Hess, C. F., Yip, B., Battles, B., Hanson, R. K.,
1992
View details for
DOI 10.2514/6.1992-582
CW laser strategies for simultaneous, multi-parameter measurements in high-speed gas flows
28th Joint Propulsion Conference and Exhibit
DiRosa, M. D., Phillippe, L. C., Arroyo, M. P., Hanson, R. K.
1992
View details for
DOI 10.2514/6.1992-3955
Instantaneous, two-line temperature imaging of a H2/NO jet in supersonic crossflow
28th Joint Propulsion Conference and Exhibit
McMillin, B. K., Palmer, J. L., Antonio, A. L., Hanson, R. K.
1992
View details for
DOI 10.2514/6.1992-3347
Planar laser-induced fluorescence imaging of velocity and temperature in shock tunnel free jet flow
30th Aerospace Sciences Meeting and Exhibit
Palmer, J. L., McMillin, B. K., Hanson, R. K.
1992
View details for
DOI 10.2514/6.1992-762
Fluorescence diagnostics for atmospheric pressure plasmas using tunable diode lasers
30th Aerospace Sciences Meeting and Exhibit
Baer, D. S., Chang, H. A., Hanson, R. K.
1992
View details for
DOI 10.2514/6.1992-679
Flow diagnostics of an arcjet using laser-induced fluorescence
28th Joint Propulsion Conference and Exhibit
Liebeskind, J. G., Hanson, R. K., Cappelli, M. A.
1992
View details for
DOI 10.2514/6.1992-3243
Laser-induced fluorescence of atomic hydrogen in an arcjet thruster
30th Aerospace Sciences Meeting and Exhibit
Liebeskind, J. G., Hanson, R. K., Cappelli, M. A.
1992
View details for
DOI 10.2514/6.1992-678
Quantitative fluorescence imaging - A comparison of linear, predissociative and saturated pumping techniques
30th Aerospace Sciences Meeting and Exhibit
Seitzman, J. M., Hanson, R. K.
1992
View details for
DOI 10.2514/6.1992-879
Planar imaging at high framing rates - System characterization and measurements
30th Aerospace Sciences Meeting and Exhibit
Patrie, B. J., Seitzman, J. M., Hanson, R. K.
1992
View details for
DOI 10.2514/6.1992-584
PLANAR FLUORESCENCE IMAGING - BASIC CONCEPTS FOR SCALAR AND VELOCITY-MEASUREMENTS
NATO ADVANCED STUDY INST ON COMBUSTING FLOW DIAGNOSTICS
Seitzman, J. M., Hanson, R. K.
KLUWER ACADEMIC PUBL.
1992
: 137–157
View details for
Web of Science ID A1992BU93L00005
Sensitive Diode Laser Absorption Technique for Aerodynamic Measurements
30th Aerospace Sciences Meeting and Exhibit
Philippe, L. C., Hanson, R. K.
1992
View details for
DOI 10.2514/6.1992-139
Planar Laser-Induced Fluorescence Measurements of High-Enthalpy Free Jet Flow with Nitric Oxide
NASA Measurement Technology Conf., NASA Langley Res. Ctr.
Palmer, J. L., McMillin, B. K., Hanson, R. K.
1992
Tunable Diode Laser Absorption Technique for Detection of Water Vapor in Aerodynamic Flows
30th Aerospace Sciences Meeting and Exhibit
Arroyo, M. P., Hanson, R. K.
1992
View details for
DOI 10.2514/6.1992-510
Two-Dimensional Imaging of Shock Tube flows Using Planar Laser-Induced Fluorescence
18th Shock Tube Symposium
McMillin, B. K., Lee, M. P., Palmer, J. L., Hanson, R. K.
1992
Semiconductor Laser-Based Measurements of Quench Rates in an Atmospheric Pressure Plasma using Saturated-Fluorescence Spectroscopy
23rd Plasmadynamics and Lasers Conference
Baer, D. S., Chang, H. A., Hanson, R. K.
1992
View details for
DOI 10.2514/6.1992-2961
Quantitative Fluorescence Measurements of the OH Radical in High Pressure Methane Flames
23rd Plasmadynamics and Lasers Conference
Battles, B. E., Hanson, R. K.
1992
View details for
DOI 10.2514/6.1992-2960
Planar fluorescence imaging of a transverse jet in a supersonic crossflow
Journal of Propulsion and Power
Lee, M. P., McMillin, B. K., Palmer, J. L., Hanson, R. K.
1992
8 (4)
: 729-735
View details for
DOI 10.2514/3.23542
Shedding New Light on Gas Dynamics
Aerospace America
McKenzie, R. L., Hanson, R. K., Eckbreth, A. C.
1992
: 20-25
Instantaneous Imaging of Particle Size and Spatial Distribution in Two-Phase Flows
Applied Optics
Hofeldt, D. L., Hanson, R. K.
1992
30 (33)
: 4936-4948
View details for
DOI 10.1364/AO.30.004936
Tunable Diode Laser Absorption Technique for Multi-Parameter Measurements of Combustion Flows
6th Int. Symp. on Applications of Laser Techniques to Fluid Mechanics
Arroyo, M. P., Hanson, R. K.
1992
Diode Laser Absorption Technique for Monitoring Mass Flux in High Speed Airflows
NASP Mid-Term Technology Review
Hanson, R. K., Philippe, L. C.
1992
LASER-ABSORPTION MASS FLUX SENSOR FOR HIGH-SPEED AIR-FLOWS
OPTICS LETTERS
PHILIPPE, L. C., Hanson, R. K.
1991
16 (24)
: 2002-2004
Abstract
We present a laser-based concept for an air mass flux sensor based on the simultaneous measurement of density and velocity of O(2). The sensor uses wavelength modulation absorption spectroscopy at 10 MHz of an AlGaAs laser diode in the b(1)Sigma(g)(+)(v' = 0)-X(3)Sigma(g)(-)(v'' = 0) system of O(2), combined with second-harmonic detection. The apparatus is demonstrated on a high-speed oxygen flow generated behind the incident shock wave in a shock tube. The measurement time is 0.5 ms for typical absorption levels of 0.5%.
View details for
Web of Science ID A1991GY73100031
View details for
PubMedID 19784209
SHOCK-TUBE MEASUREMENTS OF THE REACTIONS OF CN WITH O AND O2
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
Davidson, D. F., Dean, A. J., DIROSA, M. D., Hanson, R. K.
1991
23 (11)
: 1035-1050
View details for
Web of Science ID A1991GK69400006
RAPID TUNING CW LASER TECHNIQUE FOR MEASUREMENTS OF GAS VELOCITY, TEMPERATURE, PRESSURE, DENSITY, AND MASS FLUX USING NO
APPLIED OPTICS
Chang, A. Y., DIROSA, M. D., Davidson, D. F., Hanson, R. K.
1991
30 (21)
: 3011-3022
Abstract
An intracavity-doubled rapid-tuning cw ring dye laser was used to acquire fully resolved absorption profiles of NO line pairs in the A ? X band at 225 nm at a rate of 4 kHz. These profiles were utilized for simultaneous measurements of flow parameters in the high speed 1-D flows generated in a shock tube. Velocity was determined from the Doppler shift measured using a pair of profiles simultaneously acquired at different angles with respect to the flow direction. Temperature was determined from the intensity ratio of the adjacent lines. Pressure and density were found both from the collisional broadening and the fractional absorption. From this information the mass flux was determined. The results compare well to 1-D shock calculations.
View details for
Web of Science ID A1991FX92000020
View details for
PubMedID 20706349
CONTINUOUS WAVE LASER-ABSORPTION TECHNIQUES FOR GASDYNAMIC MEASUREMENTS IN SUPERSONIC FLOWS
APPLIED OPTICS
Davidson, D. F., Chang, A. Y., DIROSA, M. D., Hanson, R. K.
1991
30 (18)
: 2598-2608
Abstract
Line-of-sight measurements of velocity, temperature, pressure, density, and mass flux were performed in a transient shock tube flow using three laser absorption schemes. All methods employed an intracavity-doubled ring dye laser tuned to an OH transition in the A(2) summation operator(+) ? X(2)II (0,0) band at 306 nm. In the first scheme, the gas was labeled by 193.3-nm excimer photolysis of H(2)O, and the passage of the generated OH was detected downstream. In the second method, the laser was tuned at a rate of 3 kH(z) over the R(1)(7) and R(1)(11) line pair, and absorption was simultaneously monitored at 90 and 60 degrees with respect to the flow. Velocity was determined from the Doppler shift of the profiles and the temperature from the intensity ratio of the lines. Pressure was determined from both the magnitude of absorption and the collisional broadening. In the third method, the laser wavelength was fixed at a single frequency, and a continuous measurement of velocity and pressure was obtained using the signals from the two beam paths. All methods gave results which compare favorably to calculated values.
View details for
Web of Science ID A1991FR74000028
View details for
PubMedID 20700249
A SHOCK-TUBE STUDY OF REACTIONS OF C ATOMS AND CH WITH NO INCLUDING PRODUCT CHANNEL MEASUREMENTS
JOURNAL OF PHYSICAL CHEMISTRY
Dean, A. J., Hanson, R. K., Bowman, C. T.
1991
95 (8)
: 3180-3189
View details for
Web of Science ID A1991FH09800042
3-DIMENSIONAL VISUALIZATION OF TEMPORAL FLOW SEQUENCES
AIAA JOURNAL
VANCRUYNINGEN, I., Lozano, A., Mungal, M. G., Hanson, R. K.
1991
29 (3)
: 479-482
View details for
Web of Science ID A1991FE87300025
A SHOCK-TUBE STUDY OF THE REACTIONS OF NH WITH NO, O2, AND O
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
Mertens, J. D., Chang, A. Y., Hanson, R. K., Bowman, C. T.
1991
23 (2)
: 173-196
View details for
Web of Science ID A1991EV72600007
Instantaneous 3-D and Temporal Evolution Measurements by Rapid Acquisition of Planar Images
29th Aerospace Sciences Meeting
Seitzman, J. M., Paul, P. H., Patrie, B., Hanson, R. K.
1991
View details for
DOI 10.2514/6.1991-178
Two-dimensional temperature measurements of shock-tube flows using PLIF of nitric oxide
22nd Fluid Dynamics, Plasma Dynamics and Lasers Conference
McMillin, B. K., Palmer, J. L., Hanson, R. K.
1991
View details for
DOI 10.2514/6.1991-1670
Scalar mixing in the supersonic shear layer
22nd Fluid Dynamics, Plasma Dynamics and Lasers Conference
Clemens, N. T., Paul, P. H., Mungal, M. G., Hanson, R. K.
1991
View details for
DOI 10.2514/6.1991-1720
Velocity measurements in a hydrogen arcjet using LIF
AIAA/SAE/ASME/ASEE 27th Joint Propulsion Conference
Liebeskind, J. G., Hanson, R. K., Cappelli, M. A.
1991
View details for
DOI 10.2514/6.1991-2112
CW laser strategies for multi-parameter measurements of high-speed flows containing either NO or O2
29th Aerospace Sciences Meeting
DiRosa, M. D., Chang, A. Y., Davidson, D. F., Hanson, R. K.
1991
View details for
DOI 10.2514/6.1991-359
RECENT DEVELOPMENTS IN LASER DIAGNOSTICS AT THE STANFORD HIGH-TEMPERATURE GASDYNAMICS LABORATORY
SYMP ON OPTICAL METHODS IN FLOW AND PARTICLES DIAGNOSTICS ( ICALEO 90 )
Seitzman, J. M., VANCRUYNINGEN, I., Hanson, R. K.
LASER INST AMERICA.
1991
: 28–38
View details for
Web of Science ID A1991BU07Y00004
A shock tube study of reactions of carbon atoms with hydrogen and oxygen using excimer photolysis of C3O2 and carbon atom atomic resonance absorption spectroscopy
Journal of Physical Chemistry
Dean, A. J., Davidson, D. F., Hanson, R. K.
1991
95 (1)
: 183-191
View details for
DOI 10.1021/j100154a037
Development of a cw Laser Absorption Diagnostics for CH3
WSS/CI Spring Meeting
Davidson, D. F., Chang, A. Y., DiRosa, M. D., Hanson, R. K.
1991
Tunable Diode Laser Sensor for Temperature and Velocity Measurements of Oxygen
Optcon '91
Philippe, L. C., Hanson, R. K.
1991
High Temperature Reaction Kinetics of the Methyl Radical
WSS/CI meeting
Davidson, D. F., DiRosa, M. D., Chang, A. Y., Hanson, R. K., Bowman, C. T.
1991
Optical Diagnostics of a Low Power Hydrogen Arcjet
22nd Int. Electric Propulsion Conf.
Cappelli, M. A., Hanson, R. K., Liebeskind, J. G., Manzella, D. H.
1991
A Shock Tube Study of H + HNCO -> NH2 + CO
International Journal of Chemical Kinetics
Mertens, J. D., Kohse-Höinghaus, K., Hanson, R. K., Bowman, C. T.
1991
23 (8)
: 655-668
View details for
DOI 10.1002/kin.550230802
Two-Dimensional Imaging of Combustion Phenomena in a Shock Tube using Planar Laser-Induced Fluorescence
29th Aerospace Sciences Meeting
Lee, M. P., McMillin, B. K., Palmer, J. L., Hanson, R. K.
1991
View details for
DOI 10.2514/6.1991-460
Tunable Diode Laser Absorption Sensor for Temperature and Velocity Measurements of O2 in Air Flows
29th Aerospace Sciences Meeting
Philippe, L. C., Hanson, R. K.
1991
View details for
DOI 10.2514/6.1991-360
High Temperature Reaction Kinetics Relevant to Nitramine Combustion
JANNAF Combustion Meeting
Hanson, R. K., Bowman, C. T., Davidson, D. F.
1991
CW Laser Strategy of Probing NO at 220 nm for Flow Measurements
Optcon '91
DiRosa, M. D., Hanson, R. K.
1991
Tunable Diode Laser Diagnostics for Atmospheric Pressure Plasmas
22nd Fluid Dynamics, Plasma Dynamics and Lasers Conference
Baer, D. S., Philippe, L., Hanson, R. K.
1991
View details for
DOI 10.2514/6.1991-1495
Laser-Based Measurements of OH in High Pressure CH4/Air Flames
22nd Fluid Dynamics, Plasma Dynamics and Lasers Conference
Battles, B. E., Hanson, R. K.
1991
View details for
DOI 10.2514/6.1991-1494
HIGH-TEMPERATURE REACTION-RATE COEFFICIENTS DERIVED FROM N-ATOM ARAS MEASUREMENTS AND EXCIMER PHOTOLYSIS OF NO
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
Davidson, D. F., Hanson, R. K.
1990
22 (8)
: 843-861
View details for
Web of Science ID A1990DQ56000004
IMAGE-INTENSIFIED PHOTODIODE ARRAY AS A FLUORESCENCE DETECTOR IN CW-LASER EXPERIMENTS
REVIEW OF SCIENTIFIC INSTRUMENTS
HILLER, B., Paul, P. H., Hanson, R. K.
1990
61 (7)
: 1808-1815
View details for
Web of Science ID A1990DL98800002
SIMULTANEOUS MEASUREMENTS OF VELOCITY, TEMPERATURE, AND PRESSURE USING RAPID-CW WAVELENGTH-MODULATION LASER-INDUCED FLUORESCENCE OF OH
OPTICS LETTERS
Chang, A. Y., BATTLES, B. E., Hanson, R. K.
1990
15 (12)
: 706-708
Abstract
The beam from a rapid-tuning single-frequency laser was used to probe the R(1)(7) and R(1)(11) A(2)Sigma(+) ? X(2)II (0, 0) line pair of OH at a 45 degrees incident angle in a combustion-driven, supersonic free jet. Absorption line shapes were recorded in spatially resolved, single-point fluorescence. The Doppler shift, intensity ratio, and collisional broadening of the measured line pair were used to determine velocity, temperature, and pressure. The repetition rate of the measurement was 3 kHz.
View details for
Web of Science ID A1990DH95400016
View details for
PubMedID 19768054
PLANAR LASER-FLUORESCENCE IMAGING OF COMBUSTION GASES
APPLIED PHYSICS B-PHOTOPHYSICS AND LASER CHEMISTRY
Hanson, R. K., Seitzman, J. M., Paul, P. H.
1990
50 (6)
: 441-454
View details for
Web of Science ID A1990DG36700002
A PYROLYSIS MECHANISM FOR AMMONIA
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
Davidson, D. F., KOHSEHOINGHAUS, K., Chang, A. Y., Hanson, R. K.
1990
22 (5)
: 513-535
View details for
Web of Science ID A1990DB09500007
LASER-INDUCED FLUORESCENCE IMAGING OF LASER-ABLATED BARIUM
APPLIED PHYSICS LETTERS
Cappelli, M. A., Paul, P. H., Hanson, R. K.
1990
56 (18)
: 1715-1718
View details for
Web of Science ID A1990DB07100001
QUANTITATIVE IMAGING OF CONCENTRATION BY PLANAR LASER-INDUCED FLUORESCENCE
EXPERIMENTS IN FLUIDS
VANCRUYNINGEN, I., Lozano, A., Hanson, R. K.
1990
10 (1)
: 41-49
View details for
Web of Science ID A1990EE08500006
PLIF imaging and analysis of OH structures in a turbulent nonpremixed H2-air flame
28th Aerospace Sciences Meeting
Seitzman, J. M., Ungut, A., Paul, P. H., Hanson, R. K.
1990
View details for
DOI 10.2514/6.1990-160
Applications of planar laser-induced fluorescence imaging diagnostics to reacting flows
26th Joint Propulsion Conference
Paul, P. H., Hanson, R. K.
1990
View details for
DOI 10.2514/6.1990-1848
PROPERTIES OF THE IODINE MOLECULE RELEVANT TO LASER-INDUCED FLUORESCENCE EXPERIMENTS IN GAS-FLOWS
EXPERIMENTS IN FLUIDS
HILLER, B., Hanson, R. K.
1990
10 (1)
: 1-11
View details for
Web of Science ID A1990EE08500001
Planar laser-induced fluorescence imaging of nitric oxide in shock tube flows with vibrational nonequilibrium
21st Fluid Dynamics, Plasma Dynamics and Lasers Conference
McMillin, B. K., Lee, M. P., Hanson, R. K.
1990
View details for
DOI 10.2514/6.1990-1519
SHOCK-TUBE EXCIMER PHOTOLYSIS AND THE MEASUREMENT OF N ATOM KINETIC RATES
17TH INTERNATIONAL SYMP ON SHOCK WAVES AND SHOCK TUBES
Davidson, D. F., Snell, D. C., Hanson, R. K.
AIP PRESS.
1990
: 525–530
View details for
Web of Science ID A1990BR87S00079
C-ATOM ARAS DIAGNOSTIC FOR SHOCK-TUBE KINETICS STUDIES
17TH INTERNATIONAL SYMP ON SHOCK WAVES AND SHOCK TUBES
Dean, A. J., Davidson, D. F., Hanson, R. K.
AIP PRESS.
1990
: 537–542
View details for
Web of Science ID A1990BR87S00081
HIGH-RESOLUTION DIGITAL FLOWFIELD IMAGING OF JETS
EXPERIMENTS IN FLUIDS
Paul, P. H., VANCRUYNINGEN, I., Hanson, R. K., KYCHAKOFF, G.
1990
9 (5)
: 241-251
View details for
Web of Science ID A1990DN28400001
Shock Tube Study of the Reaction H + O2 -> OH + O Using OH Laser Absorption
Journal of Physical Chemistry
Masten, D. A., Hanson, R. K., Bowman, C. T.
1990
94 (18)
: 7119-7128
View details for
DOI 10.1021/j100381a033
Medidas De Concentraciones en un Jet Turbulento Mediante Fluorescencia Planar Inducida Por Laser
9th Congreso Nacional de Ingeniera Mecanica
Lozano, A., van Cruyningen, I., Danehy, P., Hanson, R. K.
1990
Laser-Induced Fluorescence Diagnostics for Supersonic Flows
Laser Applications to Chemical Analysis
Seitzman, J. M., Hanson, R. K., Paul, P. H., Lee, M. P.
1990
Recent Developments in Laser Diagnostics at Stanford's High Temperature Gasdynamics Lab
ICALEO '90
Seitzman, J. M., Hanson, R. K.
1990
A Direct Comparison of Shock Tube Photolysis and Pyrolysis Methods in the Determination of the Rate Coefficient for O + H2 -> OH + H
Combustion and Flame
Davidson, D. F., Hanson, R. K.
1990
82
: 445-447
View details for
DOI 10.1016/0010-2180(90)90014-I
Laser-Induced Fluorescence Diagnostics for Supersonic Flows
28th Aerospace Sciences Meeting
Hanson, R. K., Chang, A. Y., Seitzman, J. M., Lee, M. P., Paul, P. H., Battles, B. E.
1990
View details for
DOI 10.2514/6.1990-625
Computer Rendering of Planar Fluorescence Flowfield Images
28th Aerospace Sciences Meeting
van Cruyningen, I. J., Lozano, A., Hanson, R. K.
1990
View details for
DOI 10.2514/6.1990-499
Planar Laser-Induced Fluorescence Scalar Measurements in a Turbulent Jet
5th Int. Symp. on Applications of Laser Techniques to Fluid Mechanics
Lozano, A., van Cruyingen, I., Hanson, R. K.
1990
: 19–33
View details for
DOI 10.1007/978-3-642-61254-1_2
REACTION-KINETICS OF NH IN THE SHOCK-TUBE PYROLYSIS OF HNCO
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
Mertens, J. D., Chang, A. Y., Hanson, R. K., Bowman, C. T.
1989
21 (11)
: 1049-1067
View details for
Web of Science ID A1989AV39800006
DEVELOPMENT OF A LASER-ABSORPTION DIAGNOSTIC FOR SHOCK-TUBE STUDIES OF CH
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Dean, A. J., Hanson, R. K.
1989
42 (5)
: 375-384
View details for
Web of Science ID A1989AX37500004
MEASUREMENTS OF ABSORPTION LINESHAPES IN THE A3-PI-I]-X3-SIGMA-(0,0) BAND OF NH IN THE PRESENCE OF AR BROADENING
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Chang, A. Y., Hanson, R. K.
1989
42 (3)
: 207-217
View details for
Web of Science ID A1989AJ15500004
QUANTITATIVE NH2 CONCENTRATION DETERMINATION IN SHOCK-TUBE LASER-ABSORPTION EXPERIMENTS
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
KOHSEHOINGHAUS, K., Davidson, D. F., Chang, A. Y., Hanson, R. K.
1989
42 (1)
: 1-17
View details for
Web of Science ID A1989AD80500001
Study of NH3 Plasma/Titanium Surface Interaction: Measurement of NH Radical Production and Dissociation Kinetics by Laser Absorption Spectroscopy
Int. Plasma Chemistry Conference (ILPC)
Giquel, A., Cappelli, M. A., Chang, A. Y., Hanson, R. K.
1989
Planar laser-induced fluorescence imaging in supersonic flows
27th Aerospace Sciences Meeting
Paul, P. H., Seitzman, J. M., Lee, M. P., McMillin, B. K., Hanson, R. K.
1989
View details for
DOI 10.2514/6.1989-59
Planar laser-induced fluorescence imaging of nitric oxide in a shocktube
25th Joint Propulsion Conference
McMillin, B. K., Lee, M. P., Paul, P. H., Hanson, R. K.
1989
View details for
DOI 10.2514/6.1989-2566
COLLISIONAL BROADENING OF THE ALPHA-2-SIGMA+[-X2-PI(0,0) BAND OF OH BY H2O AND CO2 IN ATMOSPHERIC-PRESSURE FLAMES
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Rea, E. C., Chang, A. Y., Hanson, R. K.
1989
41 (1)
: 29-42
View details for
Web of Science ID A1989R777400005
Structural OH Imaging in a Turbulent H2-Air Diffusion Flame
42nd annual meeting of the Fluid Dynamics Section of APS
Paul, P. H., Seitzman, J. M., Ungut, A., Hanson, R. K.
1989
Shock Tube Combustion Studies Using Optical Diagnostics and Excimer Photolysis
AIChI Annual Meeting
Davidson, D. F., Dean, A. J., Chang, A. Y., Hanson, R. K.
1989
Planar Laser-Induced Fluorescence Imaging of NO in Supersonic Flows
Fall WSS/CI Meeting
Lee, M. P., Paul, P. H., McMillin, B. K., Hanson, R. K.
1989
Quantitative Laser-Induced Fluorescence Imaging of Flowfields
Electronic Imaging West '89
van Cruyningen, I., Lozano, A., Hanson, R. K.
1989
Planar Laser-Induced Fluorescence Imaging of Shock-Heated Flows in Vibrational Nonequilibrium
ASME Winter Meeting, Symp. of Flow Visualization
McMillin, B. K., Lee, M. P., Palmer, J. L., Paul, P. H., Hanson, R. K.
1989
Molecular Velocity Imaging of Supersonic Flows Using Pulsed Planar-Induced Fluorescence of NO
Optics Letters
Paul, P. H., Lee, M. P., Hanson, R. K.
1989
14 (9)
: 417-419
View details for
DOI 10.1364/OL.14.000417
Interpretation of Planar Laser-Induced Fluorescence Flowfield Images
ASME Winter Meeting, Symp. of Flow Visualization
van Cruyningen, I., Lozano, A., Hanson, R. K.
1989
Interpretation of Planar Laser-Induced Fluorescence Flowfield Images
International Turbulent Shear Flow Conference, Stanford, CA
van Cruyningen, I., Lozano, A., Hanson, R. K.
1989
PLIF Imaging in Supersonic Flows Using Planar Laser-Induced Fluorescence
Advances in Laser Science - IV
Paul, P. H., Seitzman, J. M., Lee, M. P., McMillin, B., Hanson, R. K.
Optical Science and Engineering Series Am Inst. Physics, NY.
1989
: 744
View details for
DOI 10.1063/1.38573
Planar Fluorescence Imaging in Gases
Handbook of Flow Visualization
Hanson, R. K., Seitzman, J. M.
edited by Yang, W. J.
Hemisphere Pub. Corp..
1989
: 219–132
Motional Narrowing in Spectral Lines of OH
Fall WSS/CI Meeting
Rea Jr, E. C., Chang, A. Y., Hanson, R. K.
1989
High Temperature Absorption Coefficients of O2, NH3 and H2O for Broadband ArF Excimer Laser Radiation
Journal of Quantitative Spectroscopy and Radiative Transfer
Davidson, D. F., Chang, A. Y., Kohse-Höinghaus, K., Hanson, R. K.
1989
42 (4)
: 267-278
View details for
DOI 10.1016/0022-4073(89)90073-3
Structural Characterization of a Turbulent Nonpremixed Hydrogen-Air Flame with PLIF of OH
Fall WSS/CI Meeting
Seitzman, J. M., Ungut, A., Paul, P. H., Hanson, R. K.
1989
Quantitative Two-Dimensional Imaging of CO in Combustion Gases Using LIF
Instrumentation for Combustion and Flow in Engines
Haumann, J., Seitzman, J. R.
edited by Hanson, R. K., Durão, D. F., Whitelaw, J. H., Witze, P. O.
1989
: 141–150
View details for
DOI 10.1007/978-94-009-2241-9_7
Planar Laser-Induced Fluorescence Imaging in Supersonic Flows
25th Joint Propulsion Conference
Paul, P. H., Lee, M., Palmer, J., Hanson, R. K.
1989
View details for
DOI 10.2514/6.1989-2912
2-D Velocity Measurements in Supersonic Flow Using Pulsed Planar Laser-Induced Fluorescence
ASME Winter Meeting, Symp. of Flow Visualization
Lee, M. P., Paul, P. H., Hanson, R. K.
1989
Volume Rendering of 2-D and 3-D Flowfield Image Data
42nd annual meeting of the Fluid Dynamics Section of APS
Lozano, A., van Cruyningen, I., Mungal, M. G., Hanson, R. K.
1989
Imaging of Laser Produced Plasmas Using Planar Laser-Induced Fluorescence
Int. Laser Science Conference, ILS
Paul, P. H., Cappelli, M. A., Hanson, R. K.
1989
Quantitative Planar Laser-Induced Fluorescence Imaging of Turbulent Jets
42nd annual meeting of the Fluid Dynamics Section of APS
van Cruyningen, I., Lozano, A., Hanson, R. K.
1989
RAPID LASER-WAVELENGTH MODULATION SPECTROSCOPY USED AS A FAST TEMPERATURE-MEASUREMENT TECHNIQUE IN HYDROCARBON COMBUSTION
APPLIED OPTICS
Rea, E. C., Hanson, R. K.
1988
27 (21)
: 4454-4464
Abstract
A fast temperature measurement technique is described which is suitable for use in dynamic reacting gases, particularly in situations which involve hydrocarbon-air combustion. Temperature is determined from the relative intensity of a pair of fully resolved absorption lines probed with a rapid-tuning single-frequency laser. Demonstration of the technique using 300-micros scans across the R(1) (7) and R(1)(11) lines in the (0, 0) band of the A(2)Sigma(+) ? X(2)II system of OH present in the postflame gases above a CH(4)-air flat-flame burner is reported. Fluorescence monitoring of the absorption spectra was used to provide improved spatial resolution. Temperatures inferred from simultaneous absorption and fluorescence measurements showed good agreement with radiation-corrected thermocouple scans.
View details for
Web of Science ID A1988Q889000026
View details for
PubMedID 20539592
PLANAR LASER-INDUCED FLUORESCENCE IMAGING
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Hanson, R. K.
1988
40 (3)
: 343-?
View details for
Web of Science ID A1988Q887800017
Digital Imaging of Laser-Ignited Combustion
23rd Thermophysics, Plasmadynamics and Lasers Conference
Seitzman, J. M., Paul, P. H., Hanson, R. K.
1988
View details for
DOI 10.2514/6.1988-2775
SIMULTANEOUS PLANAR MEASUREMENTS OF VELOCITY AND PRESSURE FIELDS IN GAS-FLOWS USING LASER-INDUCED FLUORESCENCE
APPLIED OPTICS
HILLER, B., Hanson, R. K.
1988
27 (1)
: 33-48
Abstract
The development of a nonintrusive spectroscopic technique is reported which permits simultaneous spatially resolved measurements of two velocity components and pressure in a plane of a compressible gaseous flow field. The technique is based on the detection of fluorescence from an absorption line excited with a narrowbandwidth laser. Doppler shift and pressure broadening of the line are exploited to extract velocity and pressure information, respectively. The fluorescence is detected at a 90 degrees angle with an image-intensified 100 x 100 element photodiode-array camera which is interfaced with a laboratory computer. Results of the implementation in a Mach 1.5 underexpanded supersonic jet are presented.
View details for
Web of Science ID A1988L788900015
View details for
PubMedID 20523544
Planar laser-induced fluorescence imaging in supersonic flows
5th International Congress on Applications of Lasers & Electro-Optics
Paul, P. H., Seitzman, J. M., Cohen, L. M., McMillin, B. K., Hanson, R. K.
1988
Planar Laser-Based Fluorescence Imaging of Flowfield Scalars
5th International Congress on Applications of Lasers & Electro-Optics
Hanson, R. K.
1988
Laser-Based Spectroscopic Measurements in High Temperature Gases
invited paper presented at Annual Meeting of the Optical Society of America
Hanson, R. K.
1988
Decomposition Kinetics of HNCO at High Temperatures
Western States Section/The Combustion Institute
Mertens, J. D., Chang, A. Y., Hanson, R. K., Bowman, C. T.
1988
Digital Fluorescence Imaging of Gaseous Flows
Materials Research Society Symposium
Hanson, R. K., Paul, P. H., Seitzman, J. M.
1988
View details for
DOI 10.1557/PROC-117-227
Visualization Methods for the Study of Unsteady Non-Premixed Flame Structure
Combustion Science and Technology
Vandsburger, U., Seitzman, J. M., Hanson, R. K.
1988
56 (4-6)
: 455-461
View details for
DOI 10.1080/00102208808947111
Decomposition Kinetics of HNCO at High Temperatures
poster paper presented at 22nd Symposium (International) on Combustion
Paul, P. H., Seitzman, J. M., Lee, M. P., McMillin, B. K., Hanson, R. K.
1988
Applications of PLIF Imaging to Supersonic Flows
54th National Aero-Space Plane Symposium, NASA Langley Res. Ctr.
Hanson, R. K.
1988
Quantitative NH2 Laser-Absorption Diagnostic for Shock Tube Kinetics Studies
spring meeting, Western States Section/The Combustion Institute
Kohse-Höinghaus, K., Davidson, D. F., Hanson, R. K.
1988
Laser-Based Fluorescence Imaging of Gaseous Flows
7th International Congress on Applications of Lasers and Electro-optics
Hanson, R. K.
1988
Development and Application of CH Laser Absorption Diagnostic for Shock Tube Kinetic Studies
Western States Section/The Combustion Institute
Dean, A. J., Davidson, D. F., Hanson, R. K.
1988
Plasma Diagnostics Using PLIF and Wavelength Modulation Spectroscopy
42nd Gaseous Electronics Conference
Baer, D. S., Chang, A. Y., Paul, P. H., Hanson, R. K.
1988
Modern Shock Tube Methods for Chemical Studies in High Temperature Gases
23rd Thermophysics, Plasmadynamics and Lasers Conference
Hanson, R. K., Chang, A. Y., Davidson, D. F.
1988
View details for
DOI 10.2514/6.1988-2712
CH Diagnostic for Shock Tube Kinetic Studies Using Laser Absorption at 431 nm
poster paper presented at 22nd Symposium (International) on Combustion
Dean, A. J., Davidson, D. F., Hanson, R. K.
1988
Radial Distribution Measurement of SiH in a Low Pressure Silane Plasma
Plasma Chemistry and Plasma Processing
Asano, Y., Baer, D. S., Hernberg, R., Hanson, R. K.
1988
8 (1)
: 1-8
View details for
DOI 10.1007/BF01016926
Laser-Based Diagnostics for Gaseous Flows
invited paper presented at workshop on Diagnostics for Ground-Based NASP Testing
Hanson, R. K.
1988
SUBSTRATE-TEMPERATURE DEPENDENCE OF SIH CONCENTRATION IN SILANE PLASMAS FOR AMORPHOUS-SILICON FILM DEPOSITION
JOURNAL OF NON-CRYSTALLINE SOLIDS
Asano, Y., Baer, D. S., Hanson, R. K.
1987
94 (1)
: 5-10
View details for
Web of Science ID A1987L097200002
QUANTITATIVE 2-PHOTON LIF IMAGING OF CARBON-MONOXIDE IN COMBUSTION GASES
APPLIED OPTICS
Seitzman, J. M., Haumann, J., Hanson, R. K.
1987
26 (14)
: 2892-2899
Abstract
Two-dimensional imaging of CO concentration in combustion gases is demonstrated using two-photonexcited planar laser-induced fluorescence. A quantitative model is presented for the simultaneous twophoton excitation of several rotational transitions of the B(1)Sigma(+) ? X(1)Sigma(+) system and the subsequent visible fluorescence (B(1)Sigma(+) ? A(1)Pi). The model is verified by comparison of predicted and measured excitation spectra and of temperature-corrected relative fluorescence measurements to standard probe measurements of the center line CO distribution in a CO-air diffusion flame. In addition, CO imaging experiments in a premixed methane-air flame indicate the production of C(2) by laser photodissociation of acetylene.
View details for
Web of Science ID A1987J172300036
View details for
PubMedID 20489978
MOVIES AND 3-D IMAGES OF FLOWFIELDS USING PLANAR LASER-INDUCED FLUORESCENCE
APPLIED OPTICS
KYCHAKOFF, G., Paul, P. H., VANCRUYNINGEN, I., Hanson, R. K.
1987
26 (13)
: 2498-2500
View details for
Web of Science ID A1987J082800002
View details for
PubMedID 20489901
TEMPERATURE-MEASUREMENTS IN SHOCK-TUBES USING A LASER-BASED ABSORPTION TECHNIQUE
APPLIED OPTICS
Chang, A. Y., Rea, E. C., Hanson, R. K.
1987
26 (5)
: 885-891
Abstract
A laser-based technique for monitoring temperature in shock tube flows is reported. The method employs a rapid-tuning ring-dye laser to record the fully resolved absorption spectrum of the R(1)(7) and R(1)(11) lines of OH near 306.5 nm. The temperature is inferred from the ratio of the peak absorption coefficients of the two lines. Comparisons with calculated reflected shock temperatures show agreement within +/-3% for the 1300-3500 K range.
View details for
Web of Science ID A1987G661200027
View details for
PubMedID 20454237
QUANTITATIVE IMAGING OF TEMPERATURE-FIELDS IN AIR USING PLANAR LASER-INDUCED FLUORESCENCE OF O-2
OPTICS LETTERS
Lee, M. P., Paul, P. H., Hanson, R. K.
1987
12 (2)
: 75-77
Abstract
Planar laser-induced fluorescence of O(2) has been used to acquire quantitative, instantaneous two-dimensional images of temperature in heated air flows. O(2) is excited by using a broadband ArF excimer laser at 193 nm, and the resultant fluorescence signal is converted to temperature by using a theoretical calculation of the dependence of the fluorescence on temperature. This calculation has been confirmed experimentally, and validating data are presented.
View details for
Web of Science ID A1987F829900003
View details for
PubMedID 19738797
SHOCK-TUBE STUDY OF PRESSURE BROADENING OF THE A2-SIGMA+-X2-PI(0,0) BAND OF OH BY AR AND N-2
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Rea, E. C., Chang, A. Y., Hanson, R. K.
1987
37 (2)
: 117-127
View details for
Web of Science ID A1987F973700003
Simultaneous Measurements of Velocity and Pressure Fields in Subsonic and Supersonic Flows through Image-Intensified Detection of Laser-Induced Fluorescence
Flow Visualization IV
Hiller, B., Cohen, L., Hanson, R. K.
Hemisphere Pub. Corp..
1987
: 173–178
LASER-INDUCED FLUORESCENCE MODULATION TECHNIQUES FOR VELOCITY-MEASUREMENTS IN GAS-FLOWS
EXPERIMENTS IN FLUIDS
Hassa, C., Paul, P. H., Hanson, R. K.
1987
5 (4)
: 240-246
View details for
Web of Science ID A1987H200200004
Two-Dimensional Imaging Measurements in Supersonic Flows Using Laser-Induced Fluorescence of Oxygen
22nd Thermophysics Conference
Cohen, L. M., Lee, M. P., Paul, P. H., Hanson, R. K.
1987
View details for
DOI 10.2514/6.1987-1527
Rapid-Tuning Laser Absorption Diagnostics for Shock Tube Flows
presented at 16th International Symposium on Shock Tubes and Waves
Rea Jr, E. C., Chang, A. Y., Hanson, R. K.
VCH Publishers.
1987
: 863–869
Turbulent Flowfield Interpretation Through Processing of PLIF Images
fall meeting of Western States Section/The Combustion Institute
van Cruyningen, I., Paul, P. H., Hanson, R. K.
1987
Instantaneous Two-Dimensional Multiple Particle-Sizing Diagnostic
24th JANNAF Combustion Meeting
Hofeldt, D. L., Allen, M. G., Hanson, R. K.
1987
High-Resolution Planar Laser-Induced Fluorescence Imaging of Jets
APS Fluid Dynamics Meeting
Paul, P. H., van Cruyningen, I., Hanson, R. K.
1987
Recent Advances in Digital Fluorescence Imaging of High Temperature Flowfields
ASME-JSME Thermal Engineering Joint Conference
Hanson, R. K., Allen, M. G., Lee, M. P., Paul, P. H.
1987
Instantaneous Two-Dimensional Multiple Particle-Sizing Diagnostic
6th International Congress on Applications of Lasers and Electro-optics, ICALEO '87
Hofeldt, D. L., Allen, M. G., Hanson, R. K.
1987
Two-Dimensional Detector Arrays and Their Applications to Imaging Diagnostics
Topical Meeting on Laser Applications to Chemical Analysis
Hanson, R. K.
1987
PLANAR LASER-INDUCED-FLUORESCENCE MONITORING OF OH IN A SPRAY FLAME
OPTICAL ENGINEERING
Allen, M. G., Hanson, R. K.
1986
25 (12)
: 1309-1311
View details for
Web of Science ID A1986F225600008
2-PHOTON DIGITAL IMAGING OF CO IN COMBUSTION FLOWS USING PLANAR LASER-INDUCED FLUORESCENCE
OPTICS LETTERS
Haumann, J., Seitzman, J. M., Hanson, R. K.
1986
11 (12)
: 776-778
Abstract
Two-dimensional imaging of CO distributions in combustion gases is demonstrated using planar laser-induced fluorescence. The illumination technique is based on the combination of a nonlinear absorption scheme, in which two photons at 230.1 nm excite several rotational transitions of the B (1)Sigma(+) ? X(1)Sigma(+) system, and the use of an ultraviolet multipass cell for producing the laser sheet. The subsequent visible fluorescence (B(1)Sigma(+) ? A (1)Pi) is imaged onto an intensified two-dimensional photodiode array. Experimental results are presented for carbon monoxide-air and methane-air flames.
View details for
Web of Science ID A1986F211600007
View details for
PubMedID 19738756
CALCULATIONS OF O2 ABSORPTION AND FLUORESCENCE AT ELEVATED-TEMPERATURES FOR A BROAD-BAND ARGON FLUORIDE LASER SOURCE AT 193 NM
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Lee, M. P., Hanson, R. K.
1986
36 (5)
: 425-440
View details for
Web of Science ID A1986F441600002
COMBUSTION-DRIVEN FLOW REACTOR STUDIES OF THERMAL DENOX REACTION-KINETICS
COMBUSTION AND FLAME
KIMBALLLINNE, M. A., Hanson, R. K.
1986
64 (3)
: 337-351
View details for
Web of Science ID A1986C447500007
DIGITAL IMAGING OF REACTION ZONES IN HYDROCARBON AIR FLAMES USING PLANAR LASER-INDUCED FLUORESCENCE OF CH AND C-2
OPTICS LETTERS
Allen, M. G., Howe, R. D., Hanson, R. K.
1986
11 (3)
: 126-128
View details for
Web of Science ID A1986A180500002
View details for
PubMedID 19730554
FIBEROPTIC ABSORPTION FLUORESCENCE COMBUSTION DIAGNOSTICS
COMBUSTION SCIENCE AND TECHNOLOGY
KIMBALLLINNE, M. A., KYCHAKOFF, G., Hanson, R. K.
1986
50 (4-6)
: 307-322
View details for
Web of Science ID A1986F823000008
Simultaneous measurements of velocity and pressure fields in subsonic and supersonic flows through image-intensified detection of laser-induced fluorescence
24th Aerospace Sciences Meeting
Hiller, B., Cohen, L. M., Hanson, R. K.
1986
View details for
DOI 10.2514/6.1986-161
Flame-Flow Structure in an Acoustically Driven Jet Flame
fall meeting of Western States Section, The Combustion Institute
Vandsburger, U., Lewis, G., Allen, M. G., Seitzman, J. M., Bowman, C. T., Hanson, R. K.
1986
Digital Flowfield Imaging
Physics and Engineering of Computerized Multidimensional Imaging and Processing
Kychakoff, G., Hanson, R. K.
1986
View details for
DOI 10.1117/12.966680
Multipoint Flow Diagnostics
5th International Congress on Applications of Lasers and Electro-optics
Hanson, R. K.
1986
Laser Fluorescence Imaging of O2 in Combustion Flows Using an ArF Laser
Optics Letters
Lee, M. P., Paul, P. H., Hanson, R. K.
1986
11 (1)
: 7-9
View details for
DOI 10.1364/OL.11.000007
High-Resolution and Three-Dimensional Digital Imaging of Jets
fall meeting of Western States Section, The Combustion Institute
Paul, P. H., Hanson, R. K.
1986
Shock Tube Study of High Temperature Absorption Spectroscopy of CH at 431 nm
15th International Symposium on Shock Waves and Shock Tubes, Berkeley , also Shock Waves and Shock Tubes
Louge, M. Y., Hanson, R. K.
edited by Hanson, R. K.
Stanford University Press.
1986
: 827–831
O- and N-Atom Measurements in High Temperature C2N2 + O Kinetics
Combustion and Flame
Roth, P., Louge, M. Y., Hanson, R. K.
1986
64 (2)
: 167–176
View details for
DOI 10.1016/0010-2180(86)90053-2
Effects of Fuel Spray Characteristics and Vaporization on Energy Release Rates and Flow Field Structure in a Dump Combustor
23rd JANNAF Combustion Meeting
Bowman, C. T., Hanson, R. K., Vandsburger, U., Allen, M. G., McManus, K. R.
1986
Simultaneous Imaging of Species Distributions in Two-Phase Reacting Flowfields
Int. Laser Science Conference
Allen, M. G., Hanson, R. K.
1986
Digital Imaging in Spray Flames
Western States Section/Combustion Institute Fall Meeting
Allen, M. G., Hanson, R. K.
1985
MODELING COAL PARTICLE BEHAVIOR UNDER SIMULTANEOUS DEVOLATILIZATION AND COMBUSTION
COMBUSTION AND FLAME
Choi, S., Kruger, C. H.
1985
61 (2)
: 131-144
View details for
Web of Science ID A1985AMY8800003
2-FREQUENCY LASER-INDUCED FLUORESCENCE TECHNIQUE FOR RAPID VELOCITY-FIELD MEASUREMENTS IN GAS-FLOWS
OPTICS LETTERS
HILLER, B., Hanson, R. K.
1985
10 (5)
: 206-208
Abstract
A technique is presented for measurements of two-dimensional velocity fields in gas flows. The single-mode frequency of an argon-ion laser is fixed in the wing of an absorption line of iodine molecules that are seeded at low level in the flow of interest. The emitted fluorescence is detected with an image-intensified 100 x 100 photodiode-array camera. Two pairs of counterpropagating laser sheets sequentially probe the flow to determine two velocity components. The frequency in one pair is shifted with respect to the other by an acousto-optic modulator. This two-frequency scheme eliminates the need to determine the slope of the line externally and offers the potential for combined pressure and velocity-field measurements.
View details for
Web of Science ID A1985AGA8900004
View details for
PubMedID 19724395
Shock Tube Study of the Reaction between Hydrogen Cyanide and Atomic Oxygen
Twentieth Symposium (International) on Combustion
Hanson, R. K., Bowman, C. T.
1985
: 647–54
View details for
DOI 10.1016/S0082-0784(85)80554-3
Shock-tube study of HCN self-broadening and broadening by argon for the P(10) line of the ν1 band at 3 μm
Journal of Quantitative Spectroscopy and Radiative Transfer
Chang, A. Y., Hanson, R. K.
1985
33 (3)
: 213–217
View details for
DOI 10.1016/0022-4073(85)90150-5
FAST LASER-INDUCED AEROSOL FORMATION FOR VISUALIZATION OF GAS-FLOWS
REVIEW OF SCIENTIFIC INSTRUMENTS
Hassa, C., Hanson, R. K.
1985
56 (4)
: 557-559
View details for
Web of Science ID A1985AFE0200010
SHOCK-TUBE STUDY OF HCN SELF-BROADENING AND BROADENING BY ARGON FOR THE P(10) LINE OF THE V1 BAND AT 3-MU-M
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Chang, A. Y., Hanson, R. K.
1985
33 (3)
: 213-217
View details for
Web of Science ID A1985AJL5600003
FLOW VISUALIZATION IN LOW-PRESSURE CHAMBERS USING LASER-INDUCED BIACETYL PHOSPHORESCENCE
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B
Itoh, F., KYCHAKOFF, G., Hanson, R. K.
1985
3 (6)
: 1600-1603
View details for
Web of Science ID A1985AWE8500005
INSTANTANEOUS TEMPERATURE-FIELD MEASUREMENTS USING PLANAR LASER-INDUCED FLUORESCENCE
OPTICS LETTERS
Seitzman, J. M., KYCHAKOFF, G., Hanson, R. K.
1985
10 (9)
: 439-441
Abstract
A single-pulse, laser-induced-fluorescence diagnostic for the measurement of two-dimensional temperature fields in combustion flows is described. The method uses sheet illumination from a tunable laser to excite planar laserinduced fluorescence in a stable tracer molecule, seeded at constant mole fraction into the flow field. The temporal resolution of this technique is determined by the laser pulse length. Experimental results are presented for a rodstabilized, premixed methane-air flame, using the Q(1) (22) line of the nitric oxide A(2) Sigma(+) (v = 0) ? X(2)II((1/2))(v = 0) transition (lambda approximately 225.6 nm).
View details for
Web of Science ID A1985APM7300005
View details for
PubMedID 19724474
Laser Fluorescence Imaging of O2 in Combustion Flows Using an ArF Laser
Western States Section/The Combustion Institute Fall Meeting
Lee, M. P., Paul, P. H., Hanson, R. K.
1985
Simultaneous Multiple-Point Measurements of OH in Combustion Gases Using Planar Laser-Induced Fluorescence
Twentieth Symposium (International) on Combustion
Kychakoff, G., Hanson, R. K., Howe, R. D.
1985
: 1265–72
View details for
DOI 10.1016/S0082-0784(85)80616-0
Shock Tube Study of NCO Kinetics
Twentieth Symposium (International) on Combustion
Louge, M. Y., Hanson, R. K.
1985
: 665–72
View details for
DOI 10.1016/S0082-0784(85)80556-7
SHOCK-TUBE STUDY OF CYANOGEN OXIDATION-KINETICS
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
Louge, M. Y., Hanson, R. K.
1984
16 (3)
: 231-250
View details for
Web of Science ID A1984SF58100005
RAPID-TUNING FREQUENCY-DOUBLED RING DYE-LASER FOR HIGH-RESOLUTION ABSORPTION-SPECTROSCOPY IN SHOCK-HEATED GASES
APPLIED OPTICS
Rea, E. C., SALIMIAN, S., Hanson, R. K.
1984
23 (11)
: 1691-1694
View details for
Web of Science ID A1984SU67800007
View details for
PubMedID 20424713
VELOCITY VISUALIZATION IN GAS-FLOWS USING LASER-INDUCED PHOSPHORESCENCE OF BIACETYL
REVIEW OF SCIENTIFIC INSTRUMENTS
HILLER, B., BOOMAN, R. A., Hassa, C., Hanson, R. K.
1984
55 (12)
: 1964-1967
View details for
Web of Science ID A1984AAA6600014
SPATIALLY RESOLVED COMBUSTION MEASUREMENTS USING CROSS-BEAM SATURATED ABSORPTION-SPECTROSCOPY
APPLIED OPTICS
KYCHAKOFF, G., Howe, R. D., Hanson, R. K.
1984
23 (9)
: 1303-1305
View details for
Web of Science ID A1984SR30100005
View details for
PubMedID 20424699
QUANTITATIVE HIGH-TEMPERATURE ABSORPTION-SPECTROSCOPY OF NCO AT 305 AND 440 NM
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Louge, M. Y., Hanson, R. K., Rea, E. C., BOOMAN, R. A.
1984
32 (4)
: 353-362
View details for
Web of Science ID A1984TZ15200009
SHOCK-TUBE STUDY OF THE THERMAL-DECOMPOSITION OF CYANOGEN
JOURNAL OF CHEMICAL PHYSICS
Szekely, A., Hanson, R. K., Bowman, C. T.
1984
80 (10)
: 4982-4985
View details for
Web of Science ID A1984SS95800048
HIGH-TEMPERATURE STUDY OF THE REACTIONS OF O AND OH WITH NH3
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
SALIMIAN, S., Hanson, R. K., Kruger, C. H.
1984
16 (6)
: 725-739
View details for
Web of Science ID A1984SV49600008
TUNABLE DIODE-LASER MEASUREMENTS OF SPECTRAL PARAMETERS OF HCN AT ROOM-TEMPERATURE
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Varghese, P. L., Hanson, R. K.
1984
31 (6)
: 545-559
View details for
Web of Science ID A1984TH78700007
THERMAL-DECOMPOSITION OF HYDROGEN-CYANIDE BEHIND INCIDENT SHOCK-WAVES
JOURNAL OF PHYSICAL CHEMISTRY
Szekely, A., Hanson, R. K., Bowman, C. T.
1984
88 (4)
: 666-668
View details for
Web of Science ID A1984SF45600009
FLOW VISUALIZATION IN COMBUSTION GASES USING NITRIC-OXIDE FLUORESCENCE
AIAA JOURNAL
KYCHAKOFF, G., Knapp, K., Howe, R. D., Hanson, R. K.
1984
22 (1)
: 153-154
View details for
Web of Science ID A1984RX31300028
The Visualization of Turbulent Flame Fronts Using Planar Laser-Induced Fluorescence
Science
Kychakoff, G., Howe, R. D., Hanson, R. K., Drake, M. D., Pitz, R., Lapp, M., Penney, C. M.
1984
224
: 382-384
View details for
DOI 10.1126/science.224.4647.382
Temperature Field Measurements in Combustion Gases Using Planar Laser-Induced Fluorescence
Fall Meeting, Western States Section/The Combustion Institute
Kychakoff, G., Seitzman, J. R., Hanson, R. K.
1984
Recent Developments in Absorption and Fluorescence Laser Diagnostics for High Temperature Gases
L.I.A. (Laser Inst. of America)
Hanson, R. K., Louge, M. Y., Rea Jr, E. C., Seitzman, J. M., Hiller, B.
1984
47 (ICALEO)
: 98-106
AMMONIA OXIDATION IN SHOCK-HEATED NH3-N2O-AR MIXTURES
COMBUSTION AND FLAME
SALIMIAN, S., Hanson, R. K., Kruger, C. H.
1984
56 (1)
: 83-95
View details for
Web of Science ID A1984SJ55600006
High Temperature Kinetics of the Free Radical NCO
Western States Section/Combustion Institute Meeting
Louge, M. Y., Hanson, R. K.
1984
Laser Absorption Techniques for Spectroscopy and Chemical Kinetics Studies in a Shock Tube
presented at 14th International Shock Tube Symposium, Sydney , in Shock Tubes and Waves
Hanson, R. K., Salimian, S., Rea Jr, E. C.
Sydney Symposium Publishers.
1984
: 594–601
Laser-Based Diagnostics for Flowfield Measurements
Amer. Soc. Mech. Eng. AMD
Hanson, R. K., Hiller, B., Rea Jr, E. C., Seitzman, J. M., Kychakoff, G., Howe, R. D.
1984
66
: 1-10
High-Temperature Determination of the Rate Coefficient for the Reaction CN + H2O -> OH + HCN
International Journal of Chemical Kinetics
Hanson, R. K., Bowman, C. T.
1984
16 (12)
: 1609-1621
View details for
DOI 10.1002/kin.550161214
QUANTITATIVE FLOW VISUALIZATION TECHNIQUE FOR MEASUREMENTS IN COMBUSTION GASES
APPLIED OPTICS
KYCHAKOFF, G., Howe, R. D., Hanson, R. K.
1984
23 (5)
: 704-712
View details for
Web of Science ID A1984SF80300015
View details for
PubMedID 18204630
COLLISIONAL NARROWING EFFECTS ON SPECTRAL-LINE SHAPES MEASURED AT HIGH-RESOLUTION
APPLIED OPTICS
Varghese, P. L., Hanson, R. K.
1984
23 (14)
: 2376-2385
View details for
Web of Science ID A1984TA59400036
View details for
PubMedID 18213005
HIGH-TEMPERATURE KINETICS OF NCO
COMBUSTION AND FLAME
Louge, M. Y., Hanson, R. K.
1984
58 (3)
: 291-300
View details for
Web of Science ID A1984TV74400008
TUNABLE DIODE-LASER MEASUREMENTS IN COMBUSTION GASES
PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
Hanson, R. K.
1983
438
: 75-83
View details for
Web of Science ID A1983SU57300012
RAPID EXTENDED RANGE TUNING OF SINGLE-MODE RING DYE-LASERS
APPLIED OPTICS
Rea, E. C., Hanson, R. K.
1983
22 (4)
: 518-520
View details for
Web of Science ID A1983QC98900007
View details for
PubMedID 20401145
SPATIALLY RESOLVED TUNABLE DIODE-LASER ABSORPTION-MEASUREMENTS OF CO USING OPTICAL STARK SHIFTING
APPLIED OPTICS
Knapp, K., Hanson, R. K.
1983
22 (13)
: 1980-1985
View details for
Web of Science ID A1983QX26900011
View details for
PubMedID 18196066
SHOCK-TUBE ABSORPTION-MEASUREMENTS OF OH USING A REMOTELY LOCATED DYE-LASER
APPLIED OPTICS
Hanson, R. K., SALIMIAN, S., KYCHAKOFF, G., BOOMAN, R. A.
1983
22 (5)
: 641-643
View details for
Web of Science ID A1983QF11900002
View details for
PubMedID 18195842
FIBER-OPTIC ABSORPTION FLUORESCENCE PROBES FOR COMBUSTION MEASUREMENTS
APPLIED OPTICS
KYCHAKOFF, G., KIMBALLLINNE, M. A., Hanson, R. K.
1983
22 (10)
: 1426-1428
View details for
Web of Science ID A1983QQ95300005
View details for
PubMedID 20404872
HIGH-TEMPERATURE DETERMINATION OF THE RATE COEFFICIENT FOR THE REACTION H2+CN-]H+HCN
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
Szekely, A., Hanson, R. K., Bowman, C. T.
1983
15 (9)
: 915-923
View details for
Web of Science ID A1983RH56700006
LASER-INDUCED FLUORESCENCE TECHNIQUE FOR VELOCITY-FIELD MEASUREMENTS IN SUBSONIC GAS-FLOWS
OPTICS LETTERS
HILLER, B., McDaniel, J. C., Rea, E. C., Hanson, R. K.
1983
8 (9)
: 474-476
Abstract
A nonintrusive optical technique is reported for multiple-point velocity measurements in subsonic flows. The technique is based on the detection of fluorescence from a Doppler-shifted absorption line of seeded iodine molecules excited at a laser frequency fixed in the wing of the line. Counterpropagating laser sheets are used to illuminate the flow, in the present case a nitrogen round jet, thereby eliminating the need for an unshifted reference signal. The fluorescence is detected simultaneously at 10,000 points in a plane of the flow using a 100 x 100 element photodiode-array camera. The velocity at each point is computed from four successive camera frames, each recorded with a different beam direction. The measured mean velocities between 5 and 50 m/sec agree well with data from the literature.
View details for
Web of Science ID A1983RE62000004
View details for
PubMedID 19718152
TUNABLE DIODE-LASER ABSORPTION-MEASUREMENTS OF NITRIC-OXIDE IN COMBUSTION GASES
COMBUSTION SCIENCE AND TECHNOLOGY
FALCONE, P. K., Hanson, R. K., Kruger, C. H.
1983
35 (1-4)
: 81-99
View details for
Web of Science ID A1983SX80600005
SIMULTANEOUS MULTIPLE-POINT VELOCITY-MEASUREMENTS USING LASER-INDUCED IODINE FLUORESCENCE
OPTICS LETTERS
McDaniel, J. C., HILLER, B., Hanson, R. K.
1983
8 (1)
: 51-53
Abstract
A technique is demonstrated for measuring velocity at multiple locations in a plane of a gaseous flowfield using Doppler-shifted absorption with fluorescence detection from iodine molecules, excited by a sheet of tunable single-axial-mode argon-ion laser radiation at 514.5 nm. Measurements were made simultaneously at 10,000 points in an iodine-seeded supersonic flowfield with a 100 x 100 element photodiode array camera and were found to agree well with a numerical solution for the velocity field. The accuracy with which a component of velocity can be measured is limited, in the current approach, by the iodine linewidth to about +/-5 m/sec.
View details for
Web of Science ID A1983PY53100018
View details for
PubMedID 19714132
SHOCK-TUBE DETERMINATION OF THE RATE COEFFICIENT FOR THE REACTION CN+HCN-]C2N2+H
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
Szekely, A., Hanson, R. K., Bowman, C. T.
1983
15 (11)
: 1237-1241
View details for
Web of Science ID A1983RP62700009
TUNABLE DIODE-LASER MEASUREMENTS OF THE BAND STRENGTH AND COLLISION HALFWIDTHS OF NITRIC-OXIDE
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
FALCONE, P. K., Hanson, R. K., Kruger, C. H.
1983
29 (3)
: 205-221
View details for
Web of Science ID A1983QH32700002
Fully Resolved Absorption/Fluorescence Lineshape Measurements of OH Using a Rapid-Scanning Ring Dye Laser
Western States Section/Combustion Institute Fall Meeting
Rea Jr, E. C., Hanson, R. K.
1983
Flow Visualization in Combustion Gases Using Planar Laser-Induced Fluorescence
21st Aerospace Sciences Meeting
Kychakoff, G., Howe, R. D., Hanson, R. K., Knapp, K.
1983
View details for
DOI 10.2514/6.1983-405
Use of Planar Laser-Induced Fluorescence for the Study of Combustion Flowfields
19th Joint Propulsion Conference
Kychakoff, G., Howe, R. D., Hanson, R. K.
1983
View details for
DOI 10.2514/6.1983-1361
Quantitative Visualization of Flowfields Using Laser-Induced Fluorescence
3rd Int. Flow Visualization Symp.
McDaniel, J. C., Hanson, R. K.
1983
The Technique of Rapid Generation of OH Radicals Behind Shock Waves and its Application to the Study of Combustion Kinetics
Western States Section/Combustion Institute Fall Meeting
Szekely, A., Hanson, R. K., Bowman, C. T.
1983
Laser-Induced Fluorescence Technique for Velocity Field Measurements in Compressible Flows
APS Fluid Dynamics Meeting
Hanson, R. K.
1983
Tunable Laser Absorption and Fluorescence Techniques for Combustion Research
invited paper at fall meeting of the APS
Hanson, R. K.
1983
ABSORPTION-MEASUREMENTS OF H2O AT HIGH-TEMPERATURES USING A CO LASER
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
SALIMIAN, S., Hanson, R. K.
1983
30 (1)
: 1-7
View details for
Web of Science ID A1983QU14900001
QUANTITATIVE VISUALIZATION OF COMBUSTION SPECIES IN A PLANE
APPLIED OPTICS
KYCHAKOFF, G., Howe, R. D., Hanson, R. K., McDaniel, J. C.
1982
21 (18)
: 3225-3227
View details for
Web of Science ID A1982PH31400001
View details for
PubMedID 20396209
LASER-ABSORPTION SAMPLING PROBE FOR TEMPORALLY AND SPATIALLY RESOLVED COMBUSTION MEASUREMENTS
APPLIED OPTICS
SCHOENUNG, S. M., Hanson, R. K.
1982
21 (10)
: 1767-1771
Abstract
A small sampling probe with a compact in-line absorption cell has been combined with tunable diode laser absorption spectroscopy for measuring mole fractions of IR-active species in combustion gases with temporal and spatial resolution. The system characteristics are described, and initial results are reported for CO in a CO/air turbulent diffusion flame.
View details for
Web of Science ID A1982NP90600018
View details for
PubMedID 20389937
Quantitative Flow Visualization in Combustion Gases
Western States Section/The Combustion Institute Meeting
Kychakoff, G., Knapp, K., Howe, R. D., Hanson, R. K.
1982
Survey of Rate Constants in the N/H/O System
Chapter 6 in Combustion Chemistry
Hanson, R. K., Salimian, S.
edited by Gardiner Jr, W. C.
Springer-Verlag.
1982
: 361–421
View details for
DOI 10.1007/978-1-4684-0186-8_6
Shock Tube Study of the Thermal Dissociation of Hydrogen Cyanide
Shock Tubes and Waves
Hanson, R. K., Bowman, C. T.
State University of New York Press.
1982
: 617–621
Temporally and Spatially Resolved Measurements of Fuel Mole Fraction in a Turbulent CO Diffusion Flame
Nineteenth Symposium (International) on Combustion
Schoenung, S. M., Hanson, R. K.
1982
View details for
DOI 10.1016/S0082-0784(82)80217-8
Gas Phase Reaction Kinetics of NOx Formation from Fuel Nitrogen in Fossil Fuel Combustion
Joint Symposium on Stationary Combustion NOx Control
Bowman, C. T., Hanson, R. K., Louge, M., Garman, A.
1982
A Fiber-Optic Fluorescence Probe for Species Measurements in Combustors
Western States Section/The Combustion Institute Meeting, Livermore, CA
Kimball-Linne, M. A., Kychakoff, G., Hanson, R. K., Booman, R. A.
1982
: 82-50
Tunable laser Absorption/Fluorescence Fiberoptic Probe for Combustion Measurements
Western States Section/The Combustion Institute
Kychakoff, G., Hanson, R. K.
1981
: 81-50
LASER-ABSORPTION SAMPLING PROBE FOR TEMPORALLY AND SPATIALLY RESOLVED COMBUSTION MEASUREMENTS
SCHOENUNG, S. M., Hanson, R. K.
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC.
1981
: 156–56
View details for
Web of Science ID A1981MT58700254
A shock tube study of the decomposition of NO in the presence of NH3
Eighteenth Symposium (International) on Combustion
Roose, T. R., Hanson, R. K., Kruger, C. H.
1981
: 853–62
View details for
DOI 10.1016/S0082-0784(81)80089-6
CO AND TEMPERATURE-MEASUREMENTS IN A FLAT FLAME BY LASER-ABSORPTION SPECTROSCOPY AND PROBE TECHNIQUES
COMBUSTION SCIENCE AND TECHNOLOGY
SCHOENUNG, S. M., Hanson, R. K.
1981
24 (5-6)
: 227-237
View details for
Web of Science ID A1981LA99700008
ROOM-TEMPERATURE MEASUREMENTS OF COLLISION WIDTHS OF CO LINES BROADENED BY H2O
JOURNAL OF MOLECULAR SPECTROSCOPY
Varghese, P. L., Hanson, R. K.
1981
88 (1)
: 234-235
View details for
Web of Science ID A1981MA13000021
OPTICAL FIBER PROBE USING TUNABLE LASER-ABSORPTION SPECTROSCOPY FOR COMBUSTION MEASUREMENTS
PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
KYCHAKOFF, G., Hanson, R. K.
1981
288
: 236-240
View details for
Web of Science ID A1981NF94300034
COLLISION WIDTH MEASUREMENTS OF CO IN COMBUSTION GASES USING A TUNABLE DIODE-LASER
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Varghese, P. L., Hanson, R. K.
1981
26 (4)
: 339-347
View details for
Web of Science ID A1981ML07800006
Tunable infrared diode laser measurements of line strengths and collision widths of 12C 16O at room temperature
Journal of Quantitative Spectroscopy and Radiative Transfer
Varghese, P. L., Hanson, R. K.
1980
24 (6)
: 479-489
View details for
DOI 10.1016/0022-4073(80)90017-5
ABSORPTION-SPECTROSCOPY IN SOOTING FLAMES USING A TUNABLE DIODE-LASER
APPLIED OPTICS
Hanson, R. K.
1980
19 (4)
: 482-484
View details for
Web of Science ID A1980JF68400004
View details for
PubMedID 20216877
PERFORMANCE OF A CW DOUBLE ELECTRIC-DISCHARGE FOR SUPERSONIC CO LASERS
JOURNAL OF APPLIED PHYSICS
Stanton, A. C., Hanson, R. K., MITCHNER, M.
1980
51 (3)
: 1370-1378
View details for
Web of Science ID A1980JS20600016
VIBRATIONAL KINETICS IN CO ELECTRIC-DISCHARGE LASERS - MODELING AND EXPERIMENTS
JOURNAL OF APPLIED PHYSICS
Stanton, A. C., Hanson, R. K., MITCHNER, M.
1980
51 (3)
: 1360-1369
View details for
Web of Science ID A1980JS20600015
A KINETIC-STUDY OF NO REMOVAL FROM COMBUSTION GASES BY INJECTION OF NHI-CONTAINING COMPOUNDS
COMBUSTION SCIENCE AND TECHNOLOGY
SALIMIAN, S., Hanson, R. K.
1980
23 (5-6)
: 225-230
View details for
Web of Science ID A1980KJ24900005
Thermal Decomposition of NH3 in Shock Waves
Shock Tube and Waves
Roose, T. R., Hanson, R. K., Kruger, C. H.
1980
: 476
SHOCK-TUBE MEASUREMENTS OF RATE COEFFICIENTS OF ELEMENTARY GAS REACTIONS
JOURNAL OF PHYSICAL CHEMISTRY
Bowman, C. T., Hanson, R. K.
1979
83 (6)
: 757-763
View details for
Web of Science ID A1979GN84300023
ABSORPTION SPECTROSCOPY OF COMBUSTION GASES USING A TUNABLE INFRARED DIODE-LASER
Hanson, R. K., FALCONE, P. K., Varghese, P. L., SCHOENUNG, S. M.
AMER CHEMICAL SOC.
1979
: 81–81
View details for
Web of Science ID A1979HJ68900572
Combustion Gas Measurements Using Tunable Laser Absorption Spectroscopy
17th Aerospace Sciences Meeting
Hanson, R. K.
1979
View details for
DOI 10.2514/6.1979-86
Measurements of Nitric Oxide in Combustion Gases Using a Tunable Diode Laser
Autumn meeting of the Western States Section of the Combustion Institute
Falcone, P. K., Hanson, R. K., Kruger, C. H.
1979
: 79-53
CO Measurements in Combustion Gases by Laser Absorption Spectroscopy and Probe Sampling
Western States Section, Combustion Institute Paper
Schoenung, S. M., Hanson, R. K., Falcone, P. K.
1978
: #78-46
TEMPERATURE-MEASUREMENT TECHNIQUE FOR HIGH-TEMPERATURE GASES USING A TUNABLE DIODE-LASER
APPLIED OPTICS
Hanson, R. K., FALCONE, P. K.
1978
17 (16)
: 2477-2480
View details for
Web of Science ID A1978FL55800004
View details for
PubMedID 20203804
KINETICS OF NITROUS-OXIDE DECOMPOSITION
COMBUSTION SCIENCE AND TECHNOLOGY
MONAT, J. P., Hanson, R. K., Kruger, C. H.
1977
16 (1-2)
: 21-28
View details for
Web of Science ID A1977DT35500003
HIGH-RESOLUTION SPECTROSCOPY OF COMBUSTION GASES USING A TUNABLE IR DIODE-LASER
APPLIED OPTICS
Hanson, R. K., Kuntz, P. A., Kruger, C. H.
1977
16 (8)
: 2045-2048
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Web of Science ID A1977DP74300020
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PubMedID 20168872
SHOCK-TUBE SPECTROSCOPY - ADVANCED INSTRUMENTATION WITH A TUNABLE DIODE-LASER
APPLIED OPTICS
Hanson, R. K.
1977
16 (6)
: 1479-1481
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Web of Science ID A1977DG48200019
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PubMedID 20168718
FLOW TUBE REACTOR STUDY OF THERMAL-DECOMPOSITION RATES OF NITRIC-OXIDE
COMBUSTION SCIENCE AND TECHNOLOGY
McCullough, R. W., Kruger, C. H., Hanson, R. K.
1977
15 (5-6)
: 213-223
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Web of Science ID A1977DM44900004
EXPERIMENTAL-STUDY OF NITRIC-OXIDE DECOMPOSITION BY REACTION WITH HYDROGEN
COMBUSTION SCIENCE AND TECHNOLOGY
Flower, W. L., Hanson, R. K., Kruger, C. H.
1977
15 (3-4)
: 115-128
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Web of Science ID A1977DE59000005
ABSORPTION OF CO LASER-RADIATION BY NO
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Hanson, R. K., MONAT, J. P., Kruger, C. H.
1976
16 (8)
: 705-713
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Web of Science ID A1976BY91300009
Measurements of the Reaction Rate Constants of NO + O -> N + O2 and NO + H -> N + OH at 1700 and 2100 K
Western States Section, Combustion Institute
McCullough, R. W., Kruger, C. H., Hanson, R. K.
1976
DOUBLE-DISCHARGE ARRANGEMENT FOR CW ELECTRICAL EXCITATION OF SUPERSONIC FLOWS
APPLIED PHYSICS LETTERS
Blom, J. H., Hanson, R. K.
1975
26 (4)
: 190-192
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Web of Science ID A1975V466200022
Kinetics of the Reaction of Nitric Oxide with Hydrogen
Fifteenth Symposium (International) on Combustion
Flower, W. L., Hanson, R. K., Kruger, C. H.
1975
: 823–32
View details for
DOI 10.1016/S0082-0784(75)80350-X
Decomposition of NO Studied by Infrared Emission and CO Laser Absorption
Modern Developments in Shock Tube Research, 10th International Shock Tube Symposium
Hanson, R. K., Flower, W. L., Monat, J. P., Kruger, C. H.
edited by Kamimoto, G.
Shock Tube Research Society.
1975
: 536
DETERMINATION OF RATE CONSTANT FOR REACTION O+NO-]N+O2
COMBUSTION SCIENCE AND TECHNOLOGY
Hanson, R. K., Flower, W. L., Kruger, C. H.
1974
9 (3-4)
: 79-86
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Web of Science ID A1974W300900001
SHOCK-TUBE STUDY OF CARBON-MONOXIDE DISSOCIATION KINETICS
JOURNAL OF CHEMICAL PHYSICS
Hanson, R. K.
1974
60 (12)
: 4970-4976
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Web of Science ID A1974T585800050
The Dissociation of Shock-Heated Carbon Monoxide
in Recent Developments in Shock Tube Research
Hanson, R. K.
Stanford University Press.
1973
: 365
VERIFICATION OF A SIMPLE RELATIONSHIP FOR SHOCK-WAVE REFLECTION IN A RELAXING GAS
AIAA JOURNAL
Hanson, R. K., FLOWER, W.
1973
11 (12)
: 1777-1778
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Web of Science ID A1973R516200041
EXPERIMENTAL STUDY OF SHOCK-WAVE REFLECTION FROM A THERMALLY ACCOMMODATING WALL
PHYSICS OF FLUIDS
Hanson, R. K.
1973
16 (3)
: 369-374
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Web of Science ID A1973P145000005
Reflection of a Thick Planar Shock Wave from a Coplanar Surface
8th International Symposium on Rarefied Gas Dynamics
Deiwert, G. S., Hanson, R. K.
1973
View details for
DOI 10.1016/B978-0-12-398150-9.50018-3
IMPROVED FAST RESPONSE PRESSURE GAUGE FOR SHOCK REFLECTION STUDIES IN IONIZED GASES
REVIEW OF SCIENTIFIC INSTRUMENTS
Hanson, R. K., Baganoff, D.
1972
43 (3)
: 394-?
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Web of Science ID A1972L845600005
SHOCK-TUBE STUDY OF NITROGEN DISSOCIATION RATES USING PRESSURE MEASUREMENTS
AIAA JOURNAL
Hanson, R. K., Baganoff, D.
1972
10 (2)
: 211-?
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Web of Science ID A1972L412800020
Shock-Wave Reflection in a Relaxing Gas
Journal of Fluid Mechanics
Hanson, R. K.
1971
45 (4)
: 721-746
View details for
DOI 10.1017/S0022112071000296
IONIZATION RELAXATION TIME MEASUREMENTS IN NEON
JOURNAL OF CHEMICAL PHYSICS
Hanson, R. K.
1971
55 (7)
: 3601-?
View details for
Web of Science ID A1971K488600077
SHOCK-TUBE STUDY OF VIBRATIONAL RELAXATION IN CARBON MONOXIDE USING PRESSURE MEASUREMENTS
AIAA JOURNAL
Hanson, R. K.
1971
9 (9)
: 1811-?
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Web of Science ID A1971K189400023
The Influence of Film Thickness on the Calibration of Thin-Film-Gauge Backing Materials
AIAA Journal
Hanson, R. K.
1971
: 975-977
View details for
DOI 10.2514/3.6317
Study of Gas-Solid Interaction Using Shock-Wave Reflection
in Shock-Tube Research
Hanson, R. K.
Imperial College, London.
1971
: 1–12
REFLECTION OF A SHOCK WAVE INTO A DENSITY GRADIENT
AIAA JOURNAL
Hanson, R. K., Baganoff, D.
1970
8 (4)
: 805-?
View details for
Web of Science ID A1970G105100032
SHOCK-TUBE STUDY OF VIBRATIONAL RELAXATION IN NITROGEN USING PRESSURE MEASUREMENTS
JOURNAL OF CHEMICAL PHYSICS
Hanson, R. K., Baganoff, D.
1970
53 (11)
: 4401-?
View details for
Web of Science ID A1970H913800048
NUMERICAL SOLUTIONS OF REFLECTED SHOCK-WAVE FLOWFIELDS WITH NONEQUILIBRIUM CHEMICAL REACTIONS
AIAA JOURNAL
Presley, L. L., Hanson, R. K.
1969
7 (12)
: 2267-?
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Web of Science ID A1969E863100012
Numerical Solutions of Reflected Shock-Wave Flowfields with Nonequilibrium Chemical Reactions
Fluid and Plasma Dynamics Conference
Presley, L. L., Hanson, R. K.
1968
View details for
DOI 10.2514/6.1968-732
EFFECTS OF DISSOCIATION RATE MAGNITUDES AND RELATIVE COLLISION EFFICIENCIES ON RELAXATION PROFILES IN DIATOMIC GASES
AIAA JOURNAL
Hanson, R. K., Watson, R.
1966
4 (4)
: 749-?
View details for
Web of Science ID A19667587600046
Digital Imaging of Species Concentration Fields in Spray Flames
Twenty-First Symposuim (International) on Combustion
Allen, M. G., Hanson, R. K.
1986
View details for
DOI 10.1016/S0082-0784(88)80409-0
Imaging and Characterization of OH Structures in a Turbulent Nonpremixed Flame
Twenty-Third Symposium (International) on Combustion
Seitzman, J. M., Üngüt, A., Paul, P. H., Hanson, R. K.
1990
View details for
DOI 10.1016/S0082-0784(06)80311-5
Shock tube determination of the rate coefficient for the reaction N2+O→NO+N
The Seventeenth Symposium (International) on Combustion
Monat, J. P., Hanson, R. K., Kruger, C. H.
1978
: 543–52
View details for
DOI 10.1016/S0082-0784(79)80055-7
Investigation of Nitric Oxide Decomposition in the Temperature Range 2500-4100oK
Spring meeting of the Western States Section of the Combustion Institute
Flower, W. L., Hanson, R. K., Kruger, C. H.
1974
A Shock Tube Study of H + HNCO -> H2 + NCO and the Thermal Decomposition of NCO
Twenty-Sixth Symposium (International) on Combustion
Mertens, J. D., Hanson, R. K.
1996
: 551–555
View details for
DOI 10.1016/S0082-0784(96)80259-1
Laser Fluorescence Imaging Diagnostics for Gaseous Flows
Lasers '85; Proceedings of the 8th International Conference
Hanson, R. K., Seitzman, J. M., Haumann, J., Lee, M. P., Paul, P. H.
1985
Laser Fluorescence Imaging of Temperature Fields in Air
CLEO 1986
Paul, P. H., Lee, M. P., Hanson, R. K.
1986
Resonance Absorption Spectroscopy of Combustion Gases Using Tunable Infrared Diode Lasers
Fall Meeting of the Eastern States Section, The Combustion Institute
Hanson, R. K., Kuntz, P. A., Kruger, C. H.
1976
Fundamental Kinetics Database Utilizing Shock Tube Measurements: Reaction Rate Measurements
High Temperature Gasdynamics Laboratory
Davidson, D., F., Hanson, R., K.
Measurement of the Rate Coefficient of H + O2 (+M) -> HO2 (+M) for M = Ar and N2 at High Pressures
Twenty-Sixth Symposium (International) on Combustion
Davidson, D. F., Petersen, E. L., Röhrig, M., Hanson, R. K., Bowman, C. T.
1996
: 481–88
View details for
DOI 10.1016/S0082-0784(96)80250-5
Planar Laser-Induced Fluorescence Imaging of Shock-Induced Ignition
Twenty-Third Symposium (International) on Combustion
McMillin, B. K., Lee, M. P., Paul, P. H., Hanson, R. K.
1990
: 1909–1914
View details for
DOI 10.1016/S0082-0784(06)80473-X
Preliminary Investigation into the Influence of Transverse Waves in PDE Simulations
21st Int. Colloquium on the Dynamics of Explosions and Reactive Systems
Owens, Z. K., Hanson, R. K.
2007
Tunable Mid-IR Sensing of a JR10-Fueled Pulse Detonation Engine
21st Int. Colloquium on the Dynamics of Explosions and Reactive Systems
Barbour, E. A., Hutcheson, P., Brophy, C., Sinibaldi, J. O., Hanson, R. K.
2007
Fiber-Optic Sensor Systems for Industrial Monitoring Applications
CLEO 1984
Kychakoff, G., Paul, P. H., Hanson, R. K.
1984
Mid-infrared Laser Absorption Diagnostics for Detonation Studies
29th International Symposium on Shock Waves
Spearrin, R. M., Goldenstein, C. S., Jeffries, J. B., Hanson, R. K.
: 149–154
View details for
DOI 10.1007/978-3-319-16835-7_39
Species Imaging in Spray Flames
CLEO 1986
Allen, M. G., Hanson, R. K.
1986
Temperature Field Measurements in Combustion Gases Using Planar Laser-Induced Fluorescence
CLEO 1984
Kychakoff, G., Seitzman, J. M., Hanson, R. K.
1984
High-temperature Shock Tube Measurements of Methyl Radical Decomposition
19th Int. Symp. on Gas Kinetics
Vasudevan, V., Hanson, R. K., Bowman, C. T., Golden, D. M.
2006
Laser Photolysis Shock Tube for Combustion Kinetics Studies
Twenty-Second Symposium (International) on Combustion
Davidson, D. F., Chang, A. Y., Hanson, R. K.
1988
View details for
DOI 10.1016/S0082-0784(89)80202-4
Combined Measurements of Velocity and Pressure Fields in Compressible Flows Using Laser-Induced Fluorescence
Proceedings of the 8th International Conference, Lasers '85
Hiller, B., Hanson, R. K.
1985
Constrained Reaction Volume: A Strategy for Reflected Shock Wave Experiments
24th ICDERS
Hanson, R. K., Chakraborty, S., Pang, G. A., Ren, W., Wang, S., Davidson, D. F.
2013
A Shock Tube Study of the CO+OH → CO2+H Reaction
Twenty-Fifth Symposium (International) on Combustion
Wooldridge, M. S., Hanson, R. K., Bowman, C. T.
1994
: 741–748
View details for
DOI 10.1016/S0082-0784(06)80706-X
A Shock Tube Study of Methane Decomposition Using Laser Absorption by CH3
Twenty-Fourth Symposium (International) on Combustion
Davidson, D. F., DiRosa, M. D., Chang, A. Y., Hanson, R. K., Bowman, C. T.
1992
: 589–596
View details for
DOI 10.1016/S0082-0784(06)80072-X
Advances in Diode Laser Absorption Sensors for Combustion and Propulsion
Laser Applications to Chemical, Security and Environmental Analysis
Hanson, R. K., Jeffries, J. B.
2006
View details for
DOI 10.1364/LACSEA.2006.ThC1
Spectroscopic diagnostics using tunable diode lasers
CLEO 1995
Hanson, R. K.
1995
Laser absorption sampling probe for temporally and spatially resolved combustion measurements
CLEO 1981
Schoenung, S. M., Hanson, R. K.
1981
High Temperature Shock Tube Study of Reactions of CH and C-Atoms with N2
Twenty-Third Symposium (International) on Combustion
Dean, A. J., Hanson, R. K., Bowman, C. T.
1990
: 259–265
View details for
DOI 10.1016/S0082-0784(06)80268-7
Double-pulse imaging using simultaneous OH/acetone plif for studying the evolution of high-speed, reacting mixing layers
Twenty-Fifth Symposium (International) on Combustion
Seitzman, J. M., Miller, M. F., Island, T. C., Hanson, R. K.
1994
: 1743–1750
View details for
DOI 10.1016/S0082-0784(06)80823-4
Multiplexed diode-laser sensor system for vapor-phase semiconductor wafer cleaning process monitoring
CLEO 1998
Chou, S., Baer, D. S., Hanson, R. K.
1998
View details for
DOI 10.1109/CLEO.1998.676300
Current trends in imaging diagnostics for gaseous flows
CLEO 1985
Hanson, R. K.
1985
Use of planar laser-induced fluorescence for combustion measurements
CLEO 1983
Kychakoff, G., Howe, R. D., Hanson, R. K.
1983
Spatially resolved combustion measurements using crossed-beam saturated absorption spectroscopy
CLEO 1982
Kychakoff, G., Howe, R. D., Hanson, R. K.
1982
Laser-induced fluorescence technique for velocity field measurements in subsonic flows
CLEO 1983
McDaniel, J. C., Hiller, B., Hanson, R. K.
1983
Shock tube measurements of the rate coefficient for N+CH3→H2CN+H using N-atom aras and excimer photolysis of NO
Twenty-Third Symposium (International) on Combustion
Davidson, D. F., Hanson, R. K.
1991
: 267–273
View details for
DOI 10.1016/S0082-0784(06)80269-9
A Shock Tube Study of the Reactions of NCO with O and NO using NCO Laser Absorption
Twenty-Fourth Symposium (International) on Combustion
Mertens, J. D., Dean, A. J., Hanson, R. K., Bowman, C. T.
1992
: 701–710
View details for
DOI 10.1016/S0082-0784(06)80086-X
A Shock Tube Study of the Reaction of CN and NCO with NO2
Twenty-Fifth Symposium (International) on Combustion
Wooldridge, S. T., Mertens, J. D., Hanson, R. K., Bowman, C. T.
1994
: 983–991
View details for
DOI 10.1016/S0082-0784(06)80735-6
Combustion diagnostics: Planar imaging techniques
Twenty-First Symposuim (International) on Combustion
Hanson, R. K.
1988
: 1677–1680, IN5–IN8, 1681–1691
View details for
DOI 10.1016/S0082-0784(88)80401-6
CW dye laser technique for simultaneous, spatially-resolved measurements of temperature, pressure, and velocity of NO in an underexpanded free jet
30th Aerospace Sciences Meeting and Exhibit
DiRosa, M. D., Chang, A. Y., Hanson, R. K.
1992
View details for
DOI 10.2514/6.1992-6