Experimental and Modeling Investigation of CO2 Dissociation in Mars Entry Condition

	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)
会议录名称	INTERNATIONAL CONFERENCE ON THE METHODS OF AEROPHYSICAL RESEARCH (ICMAR 2016)
	2016
会议名称	18th International Conference on the Methods of Aerophysical Research (ICMAR)
会议日期	JUN 27-JUL 03, 2016
会议地点	Perm Natl Res Polytechn Univ, Perm, RUSSIA
摘要	Shock 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.
关键词	Nonequilibrium
WOS记录号	WOS:000392692200140
课题组名称	LHD高温气流激光诊断 ; LHD解离气体动力学
ISBN号	978-0-7354-1428-0
URL	查看原文
收录类别	CPCI-S
语种	英语
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/60188
专题	高温气体动力学国家重点实验室
推荐引用方式 GB/T 7714	Lin X,Chen LZ,Peng JL,et al. Experimental and Modeling Investigation of CO2 Dissociation in Mars Entry Condition[C]INTERNATIONAL CONFERENCE ON THE METHODS OF AEROPHYSICAL RESEARCH (ICMAR 2016),2016.

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