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ALE框架下几种不同Godunov型格式的数值比较
引用本文:田保林,申卫东,刘妍,程军波,王双虎.ALE框架下几种不同Godunov型格式的数值比较[J].计算物理,2007,24(5):537-542.
作者姓名:田保林  申卫东  刘妍  程军波  王双虎
作者单位:北京应用物理与计算数学研究所,北京,100088
基金项目:国家重点基础研究发展计划(973计划) , 中国工程物理研究院基金
摘    要:给出一种有限体积Godunov型的ALE方法,用于求解多介质大变形的可压缩流动问题.由于方法具有任意的网格移动速度,可在拉氏、欧氏和ALE之间切换,具有较强的适应性.通过数值算例对这3种框架下的数值特性进行了比较研究.同时还研究了几种不同Godunov型格式的数值行为特性,分析比较了它们对激波和接触间断的分辨效果.

关 键 词:ALE(Arbitrary  Lagrangian-Eulerian)方法  Godunov型格式  Riemann解  框架  Godunov  格式  数值比较  Formulation  Schemes  Study  效果  分辨  接触间断  激波  分析  行为特性  研究  数值算例  适应性  欧氏  移动速度  网格  流动问题
文章编号:1001-246X(2007)05-0537-06
收稿时间:2006-04-19
修稿时间:2006-04-192006-08-15

Numerical Study on Several Godunov-type Schemes with ALE Formulation
TIAN Baolin,SHEN Weidong,LIU Yan,CHENG Junbo,WANG Shuanghu.Numerical Study on Several Godunov-type Schemes with ALE Formulation[J].Chinese Journal of Computational Physics,2007,24(5):537-542.
Authors:TIAN Baolin  SHEN Weidong  LIU Yan  CHENG Junbo  WANG Shuanghu
Institution:Institute of Applied Physics and Computational Mathematics,Beijing 100088
Abstract:A Godunov-type ALE(Arbitrary Lagrangian-Eulerian) method based on finite volume technique is developed to simulate compressible multimaterial flows with large deformation.The method adapts well to Lagrangian,ALE or Eulerian formulations due to its arbitrary moving speed of meshes.Numerical features are studied in the formulations.Numerical traits of several Godunov-type schemes are studied.Resolutions of scheme for shock and contact are compared.
Keywords:arbitrary Lagrangian-Eulerian method  Godunov-type scheme  Riemann solver
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