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

CORC > 力学研究所 > 中国科学院力学研究所 > 高温气体动力学国家重点实验室

	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
刊名	ACTA MECHANICA SINICA
	2012-10-01
通讯作者邮箱	xlyu@imech.ac.cn;shzh@imech.ac.cn
卷号	28 期号:5 页码:1296-1302
关键词	Radiation measurements Shock wave Mars re-entry Rotational temperature Vibrational temperature Radiation Measurements Cn Entry Tube Mixtures Model
ISSN号	0567-7718
通讯作者	Yu, XL ; Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China.
产权排序	[Yu, Xi-Long;Li, Fei; Zhang, Shao-Hua; Zhang, Xin-Yu] Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China; [Lin, Xin; Xin, Jian-Guo] Beijing Inst Technol, Sch Optoelect, Beijing 100081, Peoples R China
合作状况	国内
中文摘要	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.
学科主题	实验流体力学
分类号	二类
收录类别	SCI ; EI ; CSCD
原文出处	http://dx.doi.org/10.1007/s10409-012-0104-9
语种	英语
WOS记录号	WOS:000310884300008
公开日期	2013-01-18
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/46615]
专题	力学研究所_高温气体动力学国家重点实验室
通讯作者	Yu, XL
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.,...&Yu, XL.(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.