Abstract
Semiconductor (GaAlAs) diode lasers have been used to probe the 3s5S2° → 3p 5 P 3 (7772 Å) excited state transition of atomic oxygen in a pressure-driven shock tube. Lineshape analyses of the measured spectral profiles enable the simultaneous and independent determination of kinetic and population temperatures. Measurements were made in the reflected-shock region with an initial gas mixture of 1.5% O2 and 98.5% Ar. The experimentally determined temperatures ranged from 6900 to 11400 K, and the pressure range was 0.27 – 1.37 atm. The measured kinetic and population temperatures were found to be in good agreement with each other.
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References
Baer S, Hanson RK (1991) Tunable diode laser absorption diagnostics for atmospheric pressure plasmas. J. Quant. Spectrosc. Radiat. Transfer 47: 455–475
Chang HA, Baer DS, Hanson RK (1993) Semiconductor laser diagnostics of atomic oxygen for hypersonic flowfield measurements. AIAA 31st Aerospaces Sciences Meeting, Reno NV, AIAA Paper 93 - 0628
Gupta RN, Yos JM, Thompson RA, Lee KP (1990) A review of reaction rates and thermodynamic and transport properties for an 11-Species air model for chemical and thermal nonequilibrium calculations to 30000 K. NASA Ref. Pub. 1232
Kee RJ, Rupley FM, Miller JA (1989) Chemkin-II: a FORTRAN chemical kinetics package for the analysis of gas-phase chemical kinetics. Sandia National Laboratory, Livermore CA
McIntyre TJ, Houwing AFP, Bachor HA, Sandeman RJ (1988) Absorption measurements of the 1s5 Metastable state population behind unstable waves in ionizing argon. In: Grönig H (ed) Proc. 16th Intl. Symp. on Shock Tubes and Waves, Aachen, P 161
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© 1995 Springer-Verlag Berlin Heidelberg
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Chang, H.A., Baer, D.S., Hanson, R.K. (1995). Semiconductor Laser Diagnostics of Kinetic and Population Temperatures in High-Enthalpy Flows. In: Brun, R., Dumitrescu, L.Z. (eds) Shock Waves @ Marseille II. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-78832-1_5
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DOI: https://doi.org/10.1007/978-3-642-78832-1_5
Publisher Name: Springer, Berlin, Heidelberg
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Online ISBN: 978-3-642-78832-1
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