An Automatic Generation of Quadrilateral Mesh for Finite Element - paving

The present arithmetic of automatic mesh generation mostly generates triangular mash, scantly generating quadrilateral mesh. Comparison with triangular mesh, quadrilateral mesh can get high calculating precision and less amount of mesh. Although mapping method can generate quadrilateral mesh, It has low automation. In this paper, a new automatically quadrilateral mesh generating method is given, and an object-oriented C++ design is programmed. Only inputted few information of boundary characteristic point, the program can automatically generate good quadrilateral mesh. The method is special applicable to irregular domain and can get good element on the geometry boundary (mostly square). Mesh enhancing method is provided. Such making it meet high requirement. This method can be used in FEM software. In the end, three examples are given.