多块网格划分技术在CFD仿真中的应用  

Application of multi-block meshing technology in CFD simulation

作　　者：徐敏艳 陈华书[2] 范秦寅 胡广洪[1,2] 

机构地区：[1]上海申模计算机系统集成有限公司,上海200030 [2]上海交通大学模具CAD国家工程研究中心,上海200030 [3]日本CRADLE公司

出　　处：《计算机辅助工程》2012年第4期65-68,共4页Computer Aided Engineering

摘　　要：为提高CFD分析中网格划分的计算精度、减少计算时间、加速收敛,针对某手机的三维模型,采用稳态不可压缩层流分析,应用结构化网格和有限体积法进行计算区域和控制方程的离散.对模型设定边界条件并划分3种不同网格形式,比较可知多块网格划分不仅改善原有网格质量,而且能减少模拟计算时间,提高计算精度.As to the fact that mesh would affect the accuracy, the time consumption and the convergence of CFD simulation, the computational domain and control equations of a 3D cellular phone model are diseretized by steady-state incompressible flow analysis, structured mesh and finite volume method. Three different types of meshing with boundary conditions defined are compared accordingly. It is concluded that multi-block meshing could not only improve the mesh quality of original mesh, but also reduce the simulation time and enhance the computational precision as well.

关 键 词：多块网格划分 结构化网格 有限体积法 温度场 流场 

分 类 号：O35[理学—流体力学] O241.82[理学—力学]