Measurements of non-equilibrium and equilibrium temperature behind a strong shock wave in simulated martian atmosphere

	Measurements of non-equilibrium and equilibrium temperature behind a strong shock wave in simulated martian atmosphere
	Lin X; Yu XL(余西龙); Li F(李飞); Zhang SH(张少华); Xin JG; Zhang XY(张新宇); Yu, XL; Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China.
发表期刊	ACTA MECHANICA SINICA
	2012-10-01
卷号	28 期号:5 页码:1296-1302
ISSN	0567-7718
摘要	Non-equilibrium radiation measurements behind strong shock wave for simulated Martian atmosphere are presented in this paper. The shock wave is established in a hydrogen oxygen combustion driven shock tube. Timeresolved spectra of the Delta v = 0 sequence of the B I-2 (+) pound -> X I-2 (+) pound electronic transition of CN have been observed through optical emission spectroscopy (OES). A new method, which is based on fitting high resolution spectrum for rotational and vibrational temperatures measurement, is proposed to diagnose temperature distribution behind the shock wave. It is estimated that the current scheme has the maximum deviation less than 8% (1 sigma) for vibrational temperature measurement through detailed analysis of the influence of the uncertainties of spectroscopic constants and spectral resolution. Radiation structure of the shock layer, including induction, relaxation and equilibrium process, and corresponding rotational and vibrational temperatures are obtained through time gating OES diagnostics with sub-microsecond temporal resolution. The present extensive results will strongly benefit the reaction rate estimation and computational fluid dynamics (CFD) code validation in high enthalpy Mars reentry chemistry.
关键词	Radiation Measurements Shock Wave Mars Re-entry Rotational Temperature Vibrational Temperature Radiation Measurements Cn Entry Tube Mixtures Model
学科领域	实验流体力学
URL	查看原文
收录类别	SCI ; EI ; CSCD
语种	英语
WOS记录号	WOS:000310884300008
课题组名称	LHD高温气流激光诊断
论文分区	二类
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/46615
专题	高温气体动力学国家重点实验室
通讯作者	Yu, XL; Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China.
推荐引用方式 GB/T 7714	Lin X,Yu XL,Li F,et al. Measurements of non-equilibrium and equilibrium temperature behind a strong shock wave in simulated martian atmosphere[J]. ACTA MECHANICA SINICA,2012,28,5,:1296-1302.
APA	Lin X.,Yu XL.,Li F.,Zhang SH.,Xin JG.,...&Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China..(2012).Measurements of non-equilibrium and equilibrium temperature behind a strong shock wave in simulated martian atmosphere.ACTA MECHANICA SINICA,28(5),1296-1302.
MLA	Lin X,et al."Measurements of non-equilibrium and equilibrium temperature behind a strong shock wave in simulated martian atmosphere".ACTA MECHANICA SINICA 28.5(2012):1296-1302.

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