中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Numerical study of the oscillations induced by shock/shock interaction in hypersonic double-wedge flows

文献类型:期刊论文

作者Hu ZM(胡宗民)2; Myong R S2; Wang C(王春)1; Cho T H2; Jiang ZL(姜宗林)1
刊名SHOCK WAVES
出版日期2008-06-01
卷号18期号:1页码:41-51
关键词Shock Shock Interaction Oscillation Hypersonic Double-wedge Numerical Study
ISSN号0938-1287
DOI10.1007/s00193-008-0138-x
英文摘要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.
WOS关键词SHOCK ; VALIDATION ; TUBES
WOS研究方向Mechanics
语种英语
WOS记录号WOS:000256662600005
其他责任者Myong, R. S.
源URL[http://dspace.imech.ac.cn/handle/311007/84803]  
专题力学研究所_力学所知识产出(1956-2008)
作者单位1.Inst Mech, LHD, Beijing 100080, Peoples R China
2.Gyeongsang Natl Univ, Sch Mech & Aerosp Engn, Res Ctr Aircraft Parts Technol, Jinju 660701, South Korea;
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.

入库方式: OAI收割

来源:力学研究所

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。