摘要
结构化网格转换成非结构化网格是网格生成技术的一个分支.通过这种转换,可以同时得到两种网格的优势,即结构化网格收敛快和非结构化网格适应边界广的特性,并且也拓展了非结构化网格计算程序的应用范围.笔者给出了正交网格和适体网格的转换模型,用基元有限容积法和二阶精度格式,在转换后的非结构化网格中离散热传导方程,同时也提供多个三维不同几何形状和不同边界条件的热传导算例,以此检验这种转换的正确性和可行性.
The transformation of structured meshes to unstructured meshes is a branch of mesh generation technology. By means of this transformation, the advantage of the fast convergence of the structural grid and that of the broad adaptation to the sophisticated boundaries of the nonstructural grid can both be sustained simultaneously. Moreover, it also widens the application of the computation program encoded with the non-structural mesh. The models of the transformations between the orthogonal meshes and body-fitted meshes are presented in this paper. A heat conduction equation is solved by using the method of the based cell the finite volume and the format of the secondary order accuracy. A couple of three-dimension examples of heat conduction that included different geometries and boundary conditions are finally supplied to verify the feasibility and validation of the proposed transformation.
出处
《浙江工业大学学报》
CAS
2006年第6期684-687,共4页
Journal of Zhejiang University of Technology
关键词
结构网格
非结构网格
热传导
structured grids/meshes
unstructured grids/meshes
heat conduction
