关键词: 有FR元法, 网格生成, 波前法, 闭曲面, 边界调整

Abstract:

In order to guarantee an integrated boundary relationship between a closed surface and its parameter field , and to ensure the reliability of the advancing front technique (AFT) in mesh generation , a boundary pre-ad-justment method of closed surface is developed , in which new edges related to the boundaries of the parameter field and the virtual boundaries inside the parameter field are formed and defined as the additional boundaries of the closed surface. As a result , the closed surface is divided into a series of slices with open surface. Therefore , me-shes can be simultaneously generated via the AFT on each slice with open surface. The proposed method for bound-ary pre-adjustment makes the AFT suitable to the mesh generation of various closed surfaces.

Key words: finite element method, mesh generation, advancing front technique, closed surface, boundary adjustment