Numerical simulation of Richtmyer-Meshkov instability

doi:10.1360/04za0021

	Numerical simulation of Richtmyer-Meshkov instability
	Fu, DX ; Ma, YW ; Zhang, LB; Tian, BL
	2004-04-01
发表期刊	SCIENCE IN CHINA SERIES A-MATHEMATICS
ISSN	1006-9283
卷号	47 页码:234-244
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.
关键词	R-M instability direct numerical simulation shock-interface interaction
DOI	10.1360/04za0021
语种	英语
WOS研究方向	Mathematics
WOS类目	Mathematics, Applied ; Mathematics
WOS记录号	WOS:000222678800022
出版者	SCIENCE CHINA PRESS
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/501
专题	计算数学与科学工程计算研究所
通讯作者	Fu, DX
作者单位	1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Inst Computat Mech, State Key Lab Sci & Engn Comp, Beijing 100080, Peoples R China
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,2004,47:234-244.
APA	Fu, DX,Ma, YW,Zhang, LB,&Tian, BL.(2004).Numerical simulation of Richtmyer-Meshkov instability.SCIENCE IN CHINA SERIES A-MATHEMATICS,47,234-244.
MLA	Fu, DX,et al."Numerical simulation of Richtmyer-Meshkov instability".SCIENCE IN CHINA SERIES A-MATHEMATICS 47(2004):234-244.