有限元四边形网格划分的两种算法

Two algorithms for generating quadrilateral elements

有限元四边形网格划分要比三角形网格划分难很多,这里通过两种方法解决四边形网格划分问题。一种是把已有三角形网格转化为三角形/四边形混合网格,另一种是通过映射法生成全四边形网格。两种方法都具有计算效率高,四边形网格质量好的特点。

It is more difficult to generate quadrilateral elements than to generate triangular meshes. This paper presents two algorithms to generate quadrilateral elements. One algorithm covens the triangular quadri-lateral elements into quadrilateral elements, the other algorithm uses the mapped element approach to generate quadrilateral elements. Both of the two algorithm has the property of high computing efficency and good quality.