计算物理 ›› 1988, Vol. 5 ›› Issue (1): 9-15.

• 论文 • 上一篇    下一篇

有限长圆管中有球时Stokes流动的有限元解法

陈耀松1, 曹念铮1, 陈岩2   

  1. 1. 北京大学力学系;
    2. 北京市计算中心
  • 收稿日期:1987-04-06 出版日期:1988-03-25 发布日期:1988-03-25

THE STOKES FLOW IN AN ORIFICE WITH AN OBSTACLE AT ITS AXIS

Chen Yao-Song1, Cao Nian-Zheng1, Chen Yan2   

  1. 1. Dept of Mechanics, Peking Univ;
    2. Computer Center, Beijing
  • Received:1987-04-06 Online:1988-03-25 Published:1988-03-25

摘要: 本文用有限单元法数值计算了包含有管道、障碍物和半平面这样一个复杂区域内的流动。为了处理无穷远处的边界条件,我们采用相似单元的方法,将中间单元逐次消去,这样大大减少了计算量和内存。数值结果是合理的,从而表明本方法是行之有效的。

Abstract: The flexibility of the F.E.M has been used to study the flow in a very complex flow region, which includes pipe, obstacle and half infinite space. In order to minimize the number of elements in the infinite domain, similar elements, are settled in it and have been canceled but one in advance of calculation. The whole method is effective and the calculated result is reasonable.