二维任意凸四边形网格的MoF界面重构解析算法  

Aanlytic Calculation of MOF Interface Reconstruction on 2D Arbitrary Convex Quadrangle Grids

作　　者：王成[1] 孔泽宇 李涛[1] 贾祖朋[2] WANG Cheng;KONG Zeyu;LI Tao;JIA Zupeng(State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081,China;Institute of Applied Physics and Computational Mathematics,Beijing 100088,China)

机构地区：[1]北京理工大学爆炸科学与技术国家重点实验室,北京100081 [2]北京应用物理与计算数学研究所,北京100088

出　　处：《北京理工大学学报》2021年第4期380-387,共8页Transactions of Beijing Institute of Technology

基　　金：国家自然科学基金资助项目(U1830139)。

摘　　要：流体矩量(MoF)方法是近年来发展的一种分段线性网格重构方法,在多物质任意拉格朗日-欧拉(MMALE)方法中应用广泛.针对传统MoF方法在进行界面重构时采用迭代算法的低效问题,本文提出了一种针对凸四边形网格界面的解析解求法,代替传统的迭代求解方法应用在传统的MoF方法之中,基于Fortran语言编写了数值仿真程序;典型计算算例的结果证明本文提出的新方法大幅提高了界面重构过程的效率.The moment of fluid(MoF)method is a kind of piecewise linear interface calculation method developed in recent years.It is widely used in the multi-material arbitrary lagrange-Euler(MMALE)method.In view of the inefficiency of the traditional MoF method in reconstructing interface using iterative algorithm,an analytical solution for interface of convex quadrilateral meshes was put forward in this paper,to replace traditional iteration method used in the traditional method of MoF,and numerical simulation program was made based on Fortran language.Computation results of typical examples show that the proposed new method greatly improves the efficiency of interface refactoring process.

关 键 词：任意拉格朗日-欧拉(ALE)方法 流体矩量(MoF)方法 界面重构 解析解 

分 类 号：O351.2[理学—流体力学]