计算物理 ›› 2002, Vol. 19 ›› Issue (1): 17-22.

• 论文 • 上一篇    下一篇

以Maxwell-Boltzmann分布函数为基础的流矢量分裂方法

施卫平1, 耿爱芳2, 黄明游1, 胡守信1   

  1. 1. 吉林大学数学系, 吉林 长春 130023;
    2. 长春光学精密机械学院, 吉林 长春 130022
  • 收稿日期:2000-02-29 修回日期:2000-11-06 出版日期:2002-01-25 发布日期:2002-01-25
  • 作者简介:施卫平(1963-),男,吉林长春,副教授,从事流体力学及计算流体力学方而的研究.
  • 基金资助:
    国家自然科学基金(19702005)

KINETIC FLUX VECTOR SPLITTING METHOD BASED ON MAXWELL-BOLTZMANN DISTRIBUTION FUNCTION

SHI Wei-ping1, GENG Ai-fang2, HUANG Ming-you1, HU Shou-xin1   

  1. 1. Department of Mathematics, Jilin University, Changchun 130023, P R China;
    2 Changchun Institute of Optics and Fine Mechanics, Changchun 130022, P R China
  • Received:2000-02-29 Revised:2000-11-06 Online:2002-01-25 Published:2002-01-25

摘要: 将以微观气体分子运动论为基础的流矢量分裂法和二时间步的算法相结合,用于计算无粘理想气体流动.方程中的流矢量按局部平衡的Maxwell-Boltzmann分布函数分解.3个一维的算例给出了激波、接触间断和稀疏波的计算结果,并与精确解做了对比.

关键词: Euler方程, Maxwell分布函数, 流矢量分裂法

Abstract: The kinetic flux vector splitting method is combined with the two-time-step algorithm to simulate the inviscid ideal gas flow. The flux vectors of the equation are split on the basis of the local equilibrium Maxwell-Boltzmann distribution. Three 1-D standard test cases including shock waves, contact discontinuities and rarefaction waves are presented and compared with the exact solution.

Key words: Euler equations, Maxwell distribution function, flux vector splitting method

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