正交贴体坐标网格的生成

Formation of Orthogonal Body Fitted Coordinate Grids

给出了在物理域内利用有限元素法直接求解Ｌａｐｌａｃｅ方程，通过对给定的等值线的搜索生成正交贴体坐标网格的方法本方法具有计算误差小，容易保证网格的正交性，网格的疏密易于调整等特点本方法通用性强。

A method is adopted in this paper,which utilizes finite-element method for solving Laplace equations directly in physical region and forms orthogonal body fitted coordinate grids by searching given isolines.The method brings about less arithmetic error,can guarantee the orthogonality of grids easily and can adjust the density of grids easily.The method is in common use and facilitates application.