IMECH-IR  > 高温气体动力学国家重点实验室
Experimental and Modeling Investigation of CO2 Dissociation in Mars Entry Condition
Lin X; Chen LZ; Peng JL; Li JP(李进平); Li F(李飞); Yu XL(余西龙)
Source PublicationINTERNATIONAL CONFERENCE ON THE METHODS OF AEROPHYSICAL RESEARCH (ICMAR 2016)
2016
Conference Name18th International Conference on the Methods of Aerophysical Research (ICMAR)
Conference DateJUN 27-JUL 03, 2016
Conference PlacePerm Natl Res Polytechn Univ, Perm, RUSSIA
AbstractShock tube experiments are carried out to study the physical and chemical processes during a vehicle entry into the Mars atmosphere. The facility to establish a strong shock wave is a shock tube which is driven by combustion of hydrogen and oxygen. Measurements of rotational and vibrational temperature behind the shock wave are realized thanks to optical emission spectroscopy (OES). In parallel, tunable diode laser absorption spectroscopy (TDLAS) is utilized to diagnose one absorption line of CO near 2.33 mu m. Combined with these temperature results using OES, CO concentration in the thermal equilibrium region is derived, which is 2.91 x 10(17) cm(-3), corresponding to equilibrium temperature equals to 7000 +/- 400 K. Moreover, a thermochemical code, based on Park's two-temperature theory, for studying chemical and physical processes is developed for Mars entry conditions. Some comparisons between experiments and calculations are presented. Such a two-temperature model fails to reproduce non-equilibrium temperatures and mole fractions but suitable for equilibrium temperature predictions.
KeywordNonequilibrium
WOS IDWOS:000392692200140
DepartmentLHD高温气流激光诊断 ; LHD解离气体动力学
ISBN978-0-7354-1428-0
URL查看原文
Indexed ByCPCI-S
Language英语
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Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/60188
Collection高温气体动力学国家重点实验室
Recommended Citation
GB/T 7714
Lin X,Chen LZ,Peng JL,et al. Experimental and Modeling Investigation of CO2 Dissociation in Mars Entry Condition[C],2016.
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