计算物理 ›› 1997, Vol. 14 ›› Issue (2): 190-194.

• 论文 • 上一篇    下一篇

守恒方程的差分型格子气方法

阎广武, 胡守信, 施卫平   

  1. 吉林大学数学系, 长春 130023
  • 收稿日期:1995-11-20 修回日期:1996-12-30 出版日期:1997-03-25 发布日期:1997-03-25
  • 基金资助:
    国家自然科学基金

A DIFFERENCE TYPE LATTICE GAS SCHEMES FOR CONSERVATION EQUATIONS

Yan Guangwu, Hu Shouxin, Shi Weiping   

  1. Department of Mathematics, JiLin University, Changchun 130023
  • Received:1995-11-20 Revised:1996-12-30 Online:1997-03-25 Published:1997-03-25

摘要: 给出了守恒型模型方程的差分型格子气方法,通过定义广义的分布函数,将原方程的求解问题转化成关于分布函数的差分算法。该方法的意义在于建立格子气方法与差分法之间的联系,进而可以构造真正用于空气动力学的格子气模型,使格子气方法在可压缩流领域成为一种实用方法。分别构造了两步MacCormark格式和Warming-Beam格式的分布函数的差分方程。

关键词: 格子气, 守恒型方程, 广义分布函数

Abstract: A Lattice Gas Method has been used for conservation equation in a model equation by defined general distribution function. The model became a bridge between Lattice Gas Method and Finite Difference Method. It is shown that the method is effective by simulating model equation with MacCormark and Warming Beam schemes.

Key words: Lattice Gas, Conservation Equation, General Distribution Function

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