AutoCAD下非结构网格自动生成

Automatic generation of unstructured grid under AutoCAD

在 Auto CAD环境下 ,从背景网格生成和数据结构两方面对推进阵面法进行修正。采用修正后的方法 ,使得在流场、泥沙输移和床面冲淤数值计算的前处理过程中无须精心预设内部控制点而只需给边界一个尺度 ,就能自动生成适应任意复杂边界的非结构网格 ,从而提高网格生成。

Advancing front method was modified under AutoCAD in two aspects, i.e., background grid generation and data structure. The proposed method was used to automatically generate non-structure grid, which can adapt to arbitrarily complex boundary, provided that a boundary measure scale instead of the internal control points preset is given. Therefore, the generation and optimization of grid with generality could be efficiently completed.