多连通域三角剖分的网格推进法

提出了一种有限元网格的自动生成算法．方法包括三部分：１）用单元尺寸长度控制生成网格的疏密分布；２）通过对内节点及其相邻前后内节点角度的判定生成新的节点和单元；３）对内节点循环的控制来保证网格向内推进并收敛．研究了网格性能改善的方法．整个程序应用面向对象设计方法．结构明了，需要人工输入的数据量少，生成网格的质量较高．

A triangular-subdivision mesh advancing front method for multiple connected regions

In this paper is presented an automatic FEM mesh generating method, which includes three main aspects: firstly, the use of unit length to control the mesh density; secondly, the use of angular determination for generating new nodes and elements; thirdly, a sound control over inner node cycling to ensure the meshes to advance inwards and then converge. Also,ways to improve the quality of meshes are studied. It is believed that the object-oriented programming (OOP) is well-constructed with fewer input data, and high in the quality of mesh generation.