计算物理 ›› 1988, Vol. 5 ›› Issue (4): 501-506.

• 论文 • 上一篇    

定态对流扩散方程的渐近数值方法

吴启光   

  1. 南京大学数学系
  • 收稿日期:1988-03-11 出版日期:1988-12-25 发布日期:1988-12-25

A ASYMPTOTIC NUMERICAL METHOD FOR THE STEADY-STATE CONVECTION DIFFUSION EQUATION

Wu Qi-guang   

  1. Nanjing University
  • Received:1988-03-11 Online:1988-12-25 Published:1988-12-25

摘要: 本文提出了一种求解定态对流扩散方程的渐近数值方法,在边界层附近不必取很细的网格,对模型问题的数值计算表明,利用中等大小的步长就可得到边界层内的数值解。

Abstract: In this paper,A asymptotic numerical method for the steady-state Convection diffusion equation is proposed,which need not take very fine mesh size in the neighbourhood of the boundary layer.Numerical computation for model problem show that we can obtain the numerical solution in the boundary layer with moderate step size.