计算物理 ›› 1986, Vol. 3 ›› Issue (2): 234-240.

• 论文 • 上一篇    下一篇

定态对流扩散方程的修正Dennis格式

陆金甫, 关治   

  1. 清华大学
  • 收稿日期:1985-10-23 出版日期:1986-06-25 发布日期:1986-06-25

A MODIFIED DENNIS SCHEME FOR THE STEADY-STATE CONVECTION-DIFFUSION EQUATION

Lu Jin-fu, Guan Zhi   

  1. Tsinghua University
  • Received:1985-10-23 Online:1986-06-25 Published:1986-06-25

摘要: 本文提出了求解定态对流扩散方程的修正Dennis格式。对模型问题的初步分析和数值计算表明在相当程度上克服了Dennis格式的异常不精确性质(Peclet数大时)。

Abstract: In this paper, A modified Dennis scheme for the steady-state convection-diffusion equation is proposed. Elementry analysis and numerical computation for model problem show that, the highly inaccurate behaviour of Dennis scheme is corrected by modified Dennis scheme.