结构与非结构网格之间的转换及应用

he transformation of structured meshes to unstructured meshes is a branch of mesh generation technology. We can obtain the advantages of both grids that structure grids have the characteristics of convergence quickly and unstructured grids have the characteristics of matching sophisticated calculating domains well from this conversion. Meanwhile, it is expanding the widespread useful application of unstructured mesh codes. This paper gave the models of the transformations of the orthogonal meshes and body-fitted meshes. And, the heat conduction equation was solved using the based cell finite volume method and the secondary order accuracy. Finally, a couple of three dimension examples of heat transfer that included different geometries and boundary conditions were given. Therefore, the procedure was validated exactly and actually.