计算物理 ›› 2002, Vol. 19 ›› Issue (6): 493-500.

• 论文 • 上一篇    下一篇

含运动物体流场计算的自适应非结构二维网格生成方法

耿继辉1, 吴德红1, 吴慧中2   

  1. 1. 南京理工大学动力工程学院, 江苏 南京 210094;
    2. 南京理工大学信息学院, 江苏 南京 210094
  • 收稿日期:2001-06-13 修回日期:2002-03-12 出版日期:2002-11-25 发布日期:2002-11-25
  • 作者简介:耿继辉(1962-),男,江苏南通,教授,博士,从事远程可视计算和非结构网格技木方面的研究.
  • 基金资助:
    国家自然科学基金资助项目

GENERATION METHOD OF UNSTRUCTURED ADAPTIVE 2-D MESHES FOR SIMULATING FLOWS WITH MOVING BODIES

GENG Ji-hui1, WU De-hong1, WU Hui-zhong2   

  1. 1. Department of Power Engineering, Nanjing University of Science & Technology, Nanjing 210094, China;
    2. Department of Information, Nanjing University of Science & Technology, Nanjing 210094, China
  • Received:2001-06-13 Revised:2002-03-12 Online:2002-11-25 Published:2002-11-25

摘要: 采用自动插点的Delaunay方法和局部网格重新生成方法,对含运动边界自适应非结构二维网格生成方法进行了系统研究,实现了带有非定常运动物体流场的数值计算,并进行了数值实验.

关键词: 动边界, 非结构网格, 自适应, Delaunay方法

Abstract: A method to generate unstructured adaptive 2-D meshes is presented for simulating flows with moving bodies. Delaunay triangulation criterion in conjunction with the automatic point creation is used to generate 2-D unstructured grids. A local grid regeneration method is proposed to cope with moving boundaries. Numerical examples include a flow field induced by a moving circle plate, the interactions of shock waves with movable bodies and the movement of a projectile within a ram accelerator, illustrating an efficient and robust mesh generation method developed in the paper.

Key words: moving boundary, unstrctured grid, adapting, Delaunay triangulation

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