A New Hybrid Numerical Scheme for Two-Dimensional Ideal MHD Equations

作     者：ZHOU Yu-Fen FENG Xue-Shang 周玉芬;冯学尚

作者机构：SIGMA Weather GroupState Key Laboratory for Space WeatherCenter for Space Science and Applied ResearchChinese Academy of SciencesBeijing 100190 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2012年第29卷第9期

页      面：101-104页

核心收录：

学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学] 

基　　金：Supported by the National Basic Research Program of China under Grant No 2012CB825601 the National Natural Science Foundation of China under Grant Nos 40921063,41031066,40890162,40904050,41074121 and 41074122 the Specialized Research Fund for State Key Laboratories 

主　　题：scheme element verify 

摘      要：We present a new hybrid numerical scheme for two-dimensional(2D)ideal magnetohydrodynamic(MHD)equations.A simple conservation element and solution element(CESE)method is used to calculate the flow variables,and the unknown first-order spatial derivatives involved in the CESE method are computed with a finite volume scheme that uses the solution of the derivative Riemann problem with limited reconstruction to evaluate the numerical flux at cell interface *** show the validation and capacity of its application to 2D MHD problems,we study several benchmark *** results verify that the hybrid scheme not only performs well,but also can retain the solution quality even if the Courant number ranges from close to 1 to less than 0.01.