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 |
| DOI | 10.1007/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
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