计算物理 ›› 2006, Vol. 23 ›› Issue (1): 43-49.

• 论文 • 上一篇    下一篇

一维多介质可压缩Euler方程的高精度RKDG有限元方法

陈荣三1, 蔚喜军2   

  1. 1. 中国工程物理研究院北京研究生部, 北京 100088;
    2. 北京应用物理与计算数学研究所计算物理实验室, 北京 100088
  • 收稿日期:2004-09-22 修回日期:2005-03-22 出版日期:2006-01-25 发布日期:2006-01-25
  • 作者简介:陈荣三(1979-),男,湖北英山县,硕士生,从事计算流体力学方面的研究,江苏省常州市江苏工业学院信息科学系213016.
  • 基金资助:
    863高技术惯性约束聚变主题项目;国家自然科学基金(10471011)资助项目

A High-order Accurate RKDG Finite Element Method for One-dimensional Compressible Multicomponent Euler Equation

CHEN Rong-san1, YU Xi-jun2   

  1. 1. Graduate School of China Academy of Engineering Physics, Beijing 100088, China;
    2. Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
  • Received:2004-09-22 Revised:2005-03-22 Online:2006-01-25 Published:2006-01-25

摘要: 采用RKDG有限元目的、Level Set目的和改进的带"Isentropic"修正的Ghost Fluid目的模拟了一维多介质可压缩Euler方程,其中Euler方程、Level Set方程和重新初始化方程都采用了三阶精度的RKDG有限元目的进行离散,并对一维两种介质可压缩流体进行了数值实验,得到了较高分辨率的计算结果.

关键词: RKDG有限元方法, Level Set方法, GhostFluid方法, "Isentropic"修正

Abstract: The RKDG finite element method, Level Set method and modified Ghost Fluid method with Isentropic fix are used to simulate a one-dimensional compressible multicomponent Euler equation. A third-order accurate RKDG finite element method is used to solve the Euler equation, the Level Set equation and the re-initiation equation. Numerical tests on one-dimensional compressible two-fluid flows are made and satisfactory results are obtained.

Key words: RKDG finite element method, Level Set method, Ghost Fluid method, Isentropic fix

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