IMECH-IR  > 高温气体动力学国家重点实验室
A theoretical and computational study of the vibration excitation on the transition criteria of shock wave reflections
Peng J(彭俊); Zhang ZJ(张子健); Hu ZM(胡宗民); Jiang ZL(姜宗林)
Corresponding AuthorHu Zongmin(Huzm@imech.ac.cn)
Source PublicationAEROSPACE SCIENCE AND TECHNOLOGY
2019-06-01
Volume89Pages:299-306
ISSN1270-9638
AbstractIn this paper, we study the vibration excitation on the reflection of shock waves in hypersonic flows by using analytical and computational approaches. First, a theoretical approach is established to solve the shock relations which are further applied to develop the shock polar analytical method for high-temperature air. Then, a comparative investigation using calorically perfect gas model and thermally perfect gas model considering vibration excitation indicates an obvious change to the overall profile of the shock polar. The post-shock pressure increases within the strong branch of the shock polar while decreases within the weak branch due to vibration excitation of air molecules. A more notable phenomenon is the increase in the maximum deflection angle of the shock polar which can significantly influence the detachment criterion of shock reflection transition in high-temperature air flows. The shock polar analysis of shock reflection shows that the vibration excitation result in an obvious increase to the detachment criterion while a slight increase to the von Neumann criterion. A series of computations are conducted to confirm the above analytical findings on the shock reflection considering the vibration excitation. A slight difference of transition criterion between the theory and computations is found to be caused by the existence of the expansion fan which is an inherent flow structure. The proposed shock polar analytical method is proved to be an effective but simple approach for the study of shock wave reflections in hypersonic flows. (C) 2019 Elsevier Masson SAS. All rights reserved.
KeywordShock reflection Vibration excitation Mach reflection Transition criterion Hypersonic flow
DOI10.1016/j.ast.2019.03.021
Indexed BySCI ; EI
Language英语
WOS IDWOS:000469896800025
WOS KeywordMACH REFLECTION ; FLOW ; STEADY
WOS Research AreaEngineering
WOS SubjectEngineering, Aerospace
Funding ProjectNational Natural Science Foundation of China[11672308] ; National Natural Science Foundation of China[11532014]
Funding OrganizationNational Natural Science Foundation of China
Classification一类
Ranking1
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/79314
Collection高温气体动力学国家重点实验室
Recommended Citation
GB/T 7714
Peng J,Zhang ZJ,Hu ZM,et al. A theoretical and computational study of the vibration excitation on the transition criteria of shock wave reflections[J]. AEROSPACE SCIENCE AND TECHNOLOGY,2019,89:299-306.
APA 彭俊,张子健,胡宗民,&姜宗林.(2019).A theoretical and computational study of the vibration excitation on the transition criteria of shock wave reflections.AEROSPACE SCIENCE AND TECHNOLOGY,89,299-306.
MLA 彭俊,et al."A theoretical and computational study of the vibration excitation on the transition criteria of shock wave reflections".AEROSPACE SCIENCE AND TECHNOLOGY 89(2019):299-306.
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