基于自由型曲面的贴体网格生成  

Method of Body-Fitted Grid Generation with Arbitrarily Curved Surface

作　　者：林国华[1] 袁修干[2] 童中翔 

机构地区：[1]中国科学院力学所,lnm开放实验室北京1000802 [2]北京航空航天大学飞行器设计与应用力学系,北京1000833 [3]空军第五飞行学院,武威甘肃733003

出　　处：《空气动力学学报》1999年第4期444-448,共5页Acta Aerodynamica Sinica

摘　　要：本文建立了基于自由型曲面的曲面网格生成的数学模型，生成了曲面网格，把它作为三维Ｄｉｒｉｃｈｌｅｔ问题的边界条件，求解三维Ｐｏｉｓｓｏｎ 方程，获得了满足数值模拟要求的三维贴体网格。采用上述方法，完成了基于自由型曲面的某直升机空调座舱三维贴体网格的生成，结果令人满意。A technique is presented for constructing a boundary conforming grid on an arbitrarily curved surface. Then as a boundary values , the Poisson's equations can be solved to obtain a 3 D body fitted grid for CFD. A primary feature of the technique is that the grid on an arbitrarily curved surface is easy to be generated and adjusted forwardly, and remains continuous and smooth . Sample results are given for an arbitrarily curved surface and an air conditioned cockpit of a helicopter/fighter aircraft.

关 键 词：自由型曲面 网格生成 曲面网格 贴体网格 航空器 

分 类 号：V211.3[航空宇航科学与技术—航空宇航推进理论与工程]