三维流场的有限元自动剖分

本文从子块结构、坐标变换的角度入手,将有限元和矩阵理论相结合,提出了一种能够适应复杂三维流场有限元自动剖分要求的剖分方法,研究了流场不同区域的剖分规律。结果表明,采用该方法划分流场时可不必输入大量数据,对单元节点能全部自动编号,做到不重复编号,不漏编号,因此可以大大减少计算工作量和降低编号出错率,提高计算工作效率。

Automatical Dissection of Finite Elements in Three Dimensional Flow

Based on sectional construction and coordinate change, this paper presents a dissecting method which can be adapted to automatical dissection of finite elements in three dimensional flow and researches dissecting regularity in the different parts of the flow area. The calculated results indicate, that when the flow area is dissected by this method, it is unnecessary to imput a lot of data. All elements and nodes can be automatically numbered, without renumbering or miss numbering of them. Therefore, the calculations and errors can be greatly reduced and the work can be done effectively.