平面有限元网格生成的自适应技术

Adaptive Methods on Planar FEM Mesh Generation

在Watson逐点插入算法的基础上发展了边界自适应和约束结点；巨离自适应技术。与以往的方法相比，该方法不但提高了网格生成的自动化程度，而且使生成的单元数量有所减少。实例表明，该算法对于具有任意边界和任意的未结点的平面区域，能在最少的人工干预下获得满意的网格划分结果。

The paper develops boundary adaptive method and distance adaptive method of restrainednodes based on Watson's point－by－Point inserting algorithm. The methods generate mesh more automaticallyand also generate less elements with previous methods. Examples show that the algorithm generates satisfiedmesh under minimum manual definitions.