一种适于复杂形状物体绕流计算的网格生成方法  

A Special Grid Generation Method for Complicated Geometry

作　　者：刘晶昌[1] 孙茂[1] 吴礼义[1] 

机构地区：[1]中国科学院工程热物理所,北京航空航天大学流体所

出　　处：《水动力学研究与进展（A辑）》1995年第5期540-545,共6页Chinese Journal of Hydrodynamics

摘　　要：本文给出了一种适于复杂形状边界下进行复杂流动数值模拟的有效的网格生成方法。该方法将求解域分成若干个子域，由子域边界点分布来确定Ｐｏｉｓｓｏｎ方程源项，从而控制求解域内点分布，在全场求解Ｐｏｉｓｓｏｎ方程。所生成的网格质量高，且避免了用普通ＴＴＭ法生成网格时，网格疏密分布的控制过于依赖于经验参数的选择的缺点。作为例证，给出了环量控制翼型绕流的数值模拟结果。A numerical procedure is presented for the grid generation of boundary-fitted curvilinear coordinates. The flow region is divided into several subregions in which the source terms of Poisson equations are determined by a priori selection of the grid point distribution along the boundaries of the subregions to control the interior grid point distribution.Poisson equations are solved in the whole region to generate grid with desired mesh spacing and orthogonality. A sample numerical simulation results of flow around a circulation control air foil are presented.

关 键 词：网格生成 泊松方程 绕流 

分 类 号：O35[理学—流体力学]