Knowledge Management System of Institue of Mechanics, CAS
| Numerical simulation of Richtmyer-Meshkov instability | |
Fu DX(傅德薰) ; Ma YW(马延文); Zhang LB(张林波); Tian BL(田保林); Fu, DX (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China.
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| Source Publication | Science in China Series A-Mathematics
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| 2004 | |
| Volume | 47Issue:S1Pages:234-244 |
| ISSN | 1006-9283 |
| Abstract | 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. |
| Keyword | R-m Instability Direct Numerical Simulation Shock-interface Interaction |
| DOI | 10.1360/04za0021 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000222678800022 |
| WOS Research Area | Mathematics |
| WOS Subject | Mathematics, Applied ; Mathematics |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/33791 |
| Collection | 力学所知识产出(1956-2008) |
| Corresponding Author | Fu, DX (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China. |
| Recommended Citation 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,&Fu, DX .(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. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| E99.pdf（1265KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-ND | View Download | |
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