计算物理 ›› 2003, Vol. 20 ›› Issue (6): 498-502.

• 论文 • 上一篇    下一篇

可压缩流计算的九分笛卡尔网格技术

栗可, 吴子牛   

  1. 清华大学工程力学系, 北京 100084
  • 收稿日期:2002-09-27 修回日期:2003-04-08 出版日期:2003-11-25 发布日期:2003-11-25
  • 作者简介:栗可(1977-),男,辽宁抚顺,硕士,从事计算流体力学中九分笛卡尔网格的研究.

Nonet-Cartesian Grid Method

LI Ke, WU Zi-niu   

  1. Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
  • Received:2002-09-27 Revised:2003-04-08 Online:2003-11-25 Published:2003-11-25

摘要: 简要介绍了一种新的二维网格技术——九分笛卡尔网格技术.与传统方法将一个网格等分为4个不一样,该方法将一个网格单元等分为9个.同时考虑各向同性和各向异性加密,能够对激波和壁面附近进行快速加密,并且有效节省了网格点数目.用此方法计算了单个翼型、多个翼型及直管道下壁面带凸包的无粘带激波的流动.

关键词: 九分笛卡尔网格, 各向异性, 无粘流动, 激波

Abstract: An automatic Nonet-Cartesian grid method is presented together with Euler solutions of flows around complicated geometries. Grids are generated automatically by the recursive subdivision of a single cell into nine subcells for isotropic Nonet-Cartesian grids and into three subcells independently in each direction for anisotropic Nonet-Cartesian grids, encompassing the entire flow domain. The grid generation method is applied here to steady inviscid shocked flow computation. Results using this approach demonstrate that this method provides a simple and accurate procedure for solving flow problems with shock waves.

Key words: nonet-Cartesian grid, anisotropic, inviscid flow, shock wave

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