可压缩非守恒型两相流模型的GKS方法  

A Gas-kinetic Scheme for Compressible Two-phase Flow Containing Non-Conservative Products

作　　者：佘邦伟[1] 赵桂萍[2] 

机构地区：[1]中国工程物理研究院研究生部,北京100088 [2]北京应用物理与计算数学研究所,北京100088

出　　处：《计算物理》2012年第1期51-57,共7页Chinese Journal of Computational Physics

基　　金：国家973计划(2006CB805902);中国工程物理研究院面上基金(2009B0202021)资助项目

摘　　要：提出一种求解BN非守恒型两相流模型的方法.从微观角度出发,构造与BN模型相匹配的Gas-kineticscheme(GKS),通过对粒子速度分布函数积分求矩得到通量,把非守恒项直接包含到数值通量的演化和构造中,较好地处理了方程中包含的非守恒项.数值试验说明本方法的有效性.We propose a method for BN two-phase flow containing non-conservative terms. In microscopic aspect, a GKS model which matches with the BN model is constructed. Numerical fluxes are obtained with integrating particle velocity distribution function. And non-conservative terms are explicitly introduced into evolution and construction of numerical fluxes. Non-conservative terms are well handled. This method avoids complex iterative process of Riemann solver. It has high calculation efficiency. Numerical tests show high precision.

关 键 词：两相流 GKS 非守恒型 KFVS 

分 类 号：O359[理学—流体力学] O241.82[理学—力学]