非结构网格RKDG方法求解多介质界面问题  

Unstructured Mesh RKDG Finite Element Method for Multimedia Interfacial Problems

作　　者：蔚淑君[1] 

机构地区：[1]内蒙古财经学院计算机信息管理系,呼和浩特010051

出　　处：《内蒙古大学学报（自然科学版）》2011年第1期40-48,共9页Journal of Inner Mongolia University：Natural Science Edition

摘　　要：在多介质流体力学方程数值模拟中,界面的计算是一个非常重要的问题.采用非结构网格上RKDG(Runge-Kutta Discontinuous Galerkin)有限元方法,给出了捕捉多介质界面的Lev-el Set方程和重新初始化方程的计算方法.数值实验表明多介质界面在非结构网格计算上,RKDG有限元方法具有很大的优点.Multimedia interracial computation is a very important problem in numerical simulations of multimedia fluid dynamics. The RKDG finite element methods over unstructured meshes are applied to give an computing method for capturing multimedia interfaces by solving the level set equation and reinitializing equation. Numerical results show that the RKDG finite element methods have the advantage of computing the multimedia interfaces over unstructured meshes.

关 键 词：RKDG有限元方法 非结构网格 多介质界面问题 

分 类 号：O351[理学—流体力学]