摘要
本文提出了一种正方形亲单元上实现网格在二个坐标方向均能过渡的全四边形单元生成方法．该方法允许正方形周边节点任意分布，并可以对单元密度进行控制，将该方法和映射法结合解决了用映射单元法对结构进行四边形单元划分时存在的网格过渡的这一关键问题。该方法计算量少，运算速度快，生成单元的形状良好。
This paper presents a new method for graded mesh generation of quadrilateral finite elements on a square parent plane which allows for gradations in both coordinate directions. This methed can control mesh topology and density and have no limit to the number of nodes on each edge. This method is integrated with mapping method and solves the mesh .transition problem when using mapping method to generate all quadri1ateral meshes. This method is fasting, requires few calculations and the result elements are robust.
基金
国家自然科学基金!19272016
关键词
有限元
映射
网格
四边形单元
finite element
mapping/quadvilateral meshes
