Numerical study of the oscillations induced by shock/shock interaction in hypersonic double-wedge flows

doi:10.1007/s00193-008-0138-x

IMECH-IR > 力学所知识产出(1956-2008)

	Numerical study of the oscillations induced by shock/shock interaction in hypersonic double-wedge flows
	Hu ZM(胡宗民)1 ; Myong R S 1; Wang C(王春)2 ; Cho T H 1; Jiang ZL(姜宗林)2
发表期刊	SHOCK WAVES
	2008-06-01
卷号	18 期号:1 页码:41-51
ISSN	0938-1287
摘要	In this paper, the shock pattern oscillations induced by shock/shock interactions over double-wedge geometries in hypersonic flows were studied numerically by solving 2D inviscid Euler equations for a multi-species system. Laminar viscous effects were considered in some cases. Temperature-dependent thermodynamic properties were employed in the state and energy equations for consideration of the distinct change of the thermodynamic state. It was shown that the oscillation results in high-frequency fluctuations of heating and pressure loads over wedge surfaces. In a case with a relatively lower free-stream Mach number, the shock/shock interaction structure maintains a seven-shock configuration during the entire oscillation process. On the other hand, the oscillation is accompanied by a transition between a six-shock configuration (regular interaction) and a seven-shock configuration (Mach interaction) in a case with a higher free-stream Mach number. Numerical results also indicate that the critical wedge angle for the transition from a steady to an oscillation solution is higher compared to the corresponding value in earlier numerical research in which the perfect diatomic gas model was used.
关键词	Shock Shock Interaction Oscillation Hypersonic Double-wedge Numerical Study
DOI	10.1007/s00193-008-0138-x
收录类别	SCI
语种	英语
WOS记录号	WOS:000256662600005
关键词[WOS]	SHOCK ; VALIDATION ; TUBES
WOS研究方向	Mechanics
WOS类目	Mechanics
RpAuthor	Myong, R. S.
引用统计	被引频次：25[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/311007/84803
专题	力学所知识产出(1956-2008)
作者单位	1.Gyeongsang Natl Univ, Sch Mech & Aerosp Engn, Res Ctr Aircraft Parts Technol, Jinju 660701, South Korea; 2.Inst Mech, LHD, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Hu ZM,Myong R S,Wang C,et al. Numerical study of the oscillations induced by shock/shock interaction in hypersonic double-wedge flows[J]. SHOCK WAVES,2008,18,1,:41-51.
APA	胡宗民,Myong R S,王春,Cho T H,&姜宗林.(2008).Numerical study of the oscillations induced by shock/shock interaction in hypersonic double-wedge flows.SHOCK WAVES,18(1),41-51.
MLA	胡宗民,et al."Numerical study of the oscillations induced by shock/shock interaction in hypersonic double-wedge flows".SHOCK WAVES 18.1(2008):41-51.

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