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| Numerical study of the oscillations induced by shock/shock interaction in hypersonic double-wedge flows | |
Hu ZM(胡宗民)1 ; Myong R S1; Wang C(王春)2; Cho T H1; Jiang ZL(姜宗林)2
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| Source Publication | SHOCK WAVES
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| 2008-06-01 | |
| Volume | 18Issue:1Pages:41-51 |
| ISSN | 0938-1287 |
| Abstract | 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. |
| Keyword | Shock Shock Interaction Oscillation Hypersonic Double-wedge Numerical Study |
| DOI | 10.1007/s00193-008-0138-x |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000256662600005 |
| WOS Keyword | SHOCK ; VALIDATION ; TUBES |
| WOS Research Area | Mechanics |
| WOS Subject | Mechanics |
| Contributor | Myong, R. S. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/84803 |
| Collection | 力学所知识产出(1956-2008) |
| Affiliation | 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 |
| Recommended Citation 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.Rp_Au:Myong, R. S. |
| 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. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| 000256662600005.pdf（954KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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