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可压缩多介质流动的整体ALE方法(GALE)

Keywords: 整体ALE方法,界面大变形,分层RM不稳定性

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Abstract:

结合传统ALE方法和欧拉方法的优点,提出了整体ALE计算(GALE)的构想,通过整体重分重映使得ALE计算不再受限于物质界面的变形.当界面变形不大时,网格线与界面重合,以拉氏模式清晰地追踪物质界面;当界面有较大变形时,引入混合网格,采用欧拉方法捕捉界面.应用整体ALE方法数值模拟了气液激波管和分层Richtmyer-Meshkov(RM)不稳定性问题,取得了与理论解较为吻合的结果.

References

[1]  Benson D J,Computational methods in Lagrangian and Eulerian hydrocodes,Computer Methods in Applied Mechanics and Engineering,1992.
[2]  Johnson L,The legacy and future of CFD,96-1426-LA-URN,Los Alamos:Los Alamos Report National Laboratory,1996.
[3]  田保林,申卫东,刘妍,ALE框架下几种不同Godunov型格式的数值比较研究,计算物理,2007(5).
[4]  Tian B L,Shen W D,Jiang S,An arbitrary Lagrangian-Eulerian method based on the adaptive Riemann solvers for general equations of state,Inter J Numerical Methods in Fluids,2009(59).
[5]  Miller G H,Puckett E G,A high-order Godunov method for multiple condensed phases,Journal of Computational Physics,1996(128).
[6]  Osher S,Fedkiw R P,Level set methods:an overview and some recent results,Journal of Computational Physics,2001(169).
[7]  Cocchi J P,Saurel R,A Riemann problem based method for the resolution of compressible multimaterial flows,Journal of Computational Physics,1997(137).
[8]  Abgrall R,Karni S,Computations of compressible multifluids,Journal of Computational Physics,2001(169).
[9]  Shyue K M,An efficient shock-capturing algorithm for compressible multicomponent problems,Journal of Computational Physics,1998(142).

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