CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 1998, Vol. 15 ›› Issue (1): 6-12.

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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

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

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