计算物理 ›› 1998, Vol. 15 ›› Issue (1): 6-12.

• 论文 • 上一篇    下一篇

二维非结构网格生成及自动加密技术

苏铭德, 朱方林   

  1. 清华大学力学系, 北京 100084
  • 收稿日期:1996-02-29 修回日期:1997-01-16 出版日期:1998-01-25 发布日期:1998-01-25
  • 作者简介:苏铭德,男,55岁,教授,清华大学工程力学系

GENERATION OF UNSTRUCTURED GRID AND TECHNIQUE OF AUTOMATIC REFINE

Su Mingde, Zhu Fanglin   

  1. Tsinghua University, Beijing 100084
  • Received:1996-02-29 Revised:1997-01-16 Online:1998-01-25 Published:1998-01-25

摘要: 介绍一种可对任意二维区域进行非结构网格划分的方法,提出关于网格调整光滑的新思想,可对Laplace型滤波算子赋予新的意义。在此基础上再有目的选择松弛因子的大小,可达到同样的光滑效果而迭代次数显著减少。利用文献[3]提供的自动加点算法,对该方法稍加改进,就能完成自适应过程。利用该方法编制的程序,只需提供边界点座标,就能快速地得到满意的网格。

关键词: 非结构网格, Delaunay方法, 自动加密

Abstract: A technique to generate unstructured grids in arbitrary 2D region is presented depending upon the new idea to smooth the grid scale,which gives new explanation of filtered Laplace operator.Choosing appropriate relaxation factor,the iterative number in smooth process max be reduced greatly.The automatic refine of grid is developed and it can be used in adaptive process.The numerical examples show efficients of the present methods.

Key words: unstructured grid, Delaunay method

中图分类号: