IMECH-IR  > 高温气体动力学国家重点实验室
Experimental and Numerical Study of Carbon-Dioxide Dissociation for Mars Atmospheric Entry
Lin X(林鑫); Chen LZ; Li JP(李进平); Li F(李飞); Yu XL(余西龙)
Source PublicationJOURNAL OF THERMOPHYSICS AND HEAT TRANSFER
2018-04-01
Volume32Issue:2Pages:503-513
ISSN0887-8722
Abstract

The mechanism of CO2 dissociation during entry in the Mars atmosphere is experimentally investigated. A hydrogen-oxygen combustion-driven shock tube is used to simulate physical and chemical conditions in a CO2-N-2 mixture. Two shock velocity/initial pressure conditions are studied: 7.09 +/- 0.05 km /s at 100 Pa (called the low-pressure condition) and 5.68 +/- 0.07 km /s at 300 Pa (called the high-pressure condition). The temperature behind the shock wave is obtained by analyzing the high-temporal-resolution and high-spatial-resolution experimental spectra of the CN violet (B-2 Sigma(+ )-> X-2 Sigma(+), Delta v = 0) system. The CO number density is derived using a tunable diode laser absorption spectroscopy system based on CO absorption near 2.33 mu m. Moreover, a numerical code is developed to reproduce the experimental results (temperatures and species densities). The kinetic code in this work is based on Park's two-temperature model. Comparisons between experiments and calculations are presented. Such a relatively simple two-temperature model fails to accurately describe the nonequilibrium temperature and CO number density but is suitable for equilibrium temperature predictions.

DOI10.2514/1.T5152
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000428347000021
WOS KeywordStrong Shock-wave ; Nonequilibrium Radiation ; Temperature-measurements ; Emission-spectroscopy ; Cn Radiation ; Simulations ; Mixtures ; Plasmas ; System ; Tube
WOS Research AreaThermodynamics ; Engineering, Mechanical
WOS SubjectThermodynamics ; Engineering
Funding OrganizationNational Natural Science Foundation of China
ClassificationQ3
Ranking1
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/77814
Collection高温气体动力学国家重点实验室
Corresponding AuthorYu XL(余西龙)
Recommended Citation
GB/T 7714
Lin X,Chen LZ,Li JP,et al. Experimental and Numerical Study of Carbon-Dioxide Dissociation for Mars Atmospheric Entry[J]. JOURNAL OF THERMOPHYSICS AND HEAT TRANSFER,2018,32(2):503-513.
APA Lin X,Chen LZ,Li JP,Li F,&Yu XL.(2018).Experimental and Numerical Study of Carbon-Dioxide Dissociation for Mars Atmospheric Entry.JOURNAL OF THERMOPHYSICS AND HEAT TRANSFER,32(2),503-513.
MLA Lin X,et al."Experimental and Numerical Study of Carbon-Dioxide Dissociation for Mars Atmospheric Entry".JOURNAL OF THERMOPHYSICS AND HEAT TRANSFER 32.2(2018):503-513.
Files in This Item: Download All
File Name/Size DocType Version Access License
IrJ2018199.pdf(4952KB)期刊论文出版稿开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Lin X(林鑫)]'s Articles
[Chen LZ]'s Articles
[Li JP(李进平)]'s Articles
Baidu academic
Similar articles in Baidu academic
[Lin X(林鑫)]'s Articles
[Chen LZ]'s Articles
[Li JP(李进平)]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Lin X(林鑫)]'s Articles
[Chen LZ]'s Articles
[Li JP(李进平)]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: IrJ2018199.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.