Numerical simulation of Richtmyer-Meshkov instability
文献类型：期刊论文
| 作者 | Fu DX(傅德薰) ; Ma YW(马延文); Zhang LB(张林波); Tian BL(田保林)
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| 刊名 | Science in China Series A-Mathematics
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| 出版日期 | 2004 |
| 卷号 | 47期号:S1页码:234-244 |
| 通讯作者邮箱 | fud@imech.ac.cn |
| 关键词 | R-M Instability Direct Numerical Simulation Shock-Interface Interaction |
| ISSN号 | 1006-9283 |
| 通讯作者 | Fu, DX (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China. |
| 中文摘要 | The compressible Navier-Stokes equations discretized with a fourth order accurate compact finite difference scheme with group velocity control are used to simulate the Richtmyer-Meshkov (R-M) instability problem produced by cylindrical shock-cylindrical material interface with shock Mach number Ms = 1.2 and density ratio 1:20 (interior density/outer density). Effect of shock refraction, reflection, interaction of the reflected shock with the material interface, and effect of initial perturbation modes on R-M instability are investigated numerically. It is noted that the shock refraction is a main physical mechanism of the initial phase changing of the material surface. The multiple interactions of the reflected shock from the origin with the interface and the R-M instability near the material interface are the reason for formation of the spike-bubble structures. Different viscosities lead to different spike-bubble structure characteristics. The vortex pairing phenomenon is found in the initial double mode simulation. The mode interaction is the main factor of small structures production near the interface. |
| 类目[WOS] | Mathematics, Applied ; Mathematics |
| 研究领域[WOS] | Mathematics |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000222678800022 |
| 公开日期 | 2009-08-03 ; 2010-06-13 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/33791]  |
| 专题 | 力学研究所_力学所知识产出(1956-2008) |
| 推荐引用方式 GB/T 7714 | Fu DX,Ma YW,Zhang LB,et al. Numerical simulation of Richtmyer-Meshkov instability[J]. Science in China Series A-Mathematics,2004,47(S1):234-244. |
| APA | Fu DX,Ma YW,Zhang LB,&Tian BL.(2004).Numerical simulation of Richtmyer-Meshkov instability.Science in China Series A-Mathematics,47(S1),234-244. |
| MLA | Fu DX,et al."Numerical simulation of Richtmyer-Meshkov instability".Science in China Series A-Mathematics 47.S1(2004):234-244. |
入库方式： OAI收割
来源：力学研究所
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