摘要
叙述了一种新的生成三维非结构网格的Delaunay方法,该方法能够高效地生成优质四面体网格。由于采用了局部剖分的方法来保证边界的完整性,因而不需要添加新的节点到原始表面三角形中。该方法在四面体外接球的球心处插入新的节点,在插入全部内点后,采用删除边、边/面交换、网格光顺等方法对生成的网格进行了优化,基本能删除质量差的四面体。
A new tetrahedral mesh generator based on Delaunay method is described in this paper. The generator can create good quality volume meshes fast. To ensure the existence of boundary sides and faces, local tetrahedralization method is adopted, needing add no node into the origin surface triangulations. Inserting new node in circum-centers of the existing tetrahedral. After inserting all interior nodes, some optimization algorithms including edge deletion, edge/face swapping and mesh smoothing are employed to improve the mesh quality. All Slivers can be deleted.
出处
《航空计算技术》
2003年第4期31-34,共4页
Aeronautical Computing Technique
