结构网格下求解非规则区域流场的一种差分法  

A Finite Difference Method for Irregular Domain Flows Applying Structural Grid

作　　者：吴春亮[1] 詹杰民[1] 

机构地区：[1]中山大学应用力学与工程系,广东广州510275

出　　处：《中山大学学报（自然科学版）》2003年第4期9-11,30,共4页Acta Scientiarum Naturalium Universitatis Sunyatseni

基　　金：国家自然科学基金资助项目 (10 2 72 118)

摘　　要：对于粘性不可压缩流场的计算 ,提出一种标识边界的差分方法 ,对不规则区域的流场边界做标记 ,应用SIMPLE算法在直角坐标系的结构网格下离散求解N -S方程 ;对圆柱绕流 ,不规则腔体流等问题进行数值模拟 ,取得了较好的效果。A boundary_marked finite difference method is presented to simulate incompressible viscous fluid flows in irregular domains. By marking the cells of the irregular boundary, SIMPLE algorithm is applied to solve the Navier_Stokes equations in a Cartesian coordinates. Some 2D problems, such as flow around a column and flow in irregular cavities etc., are simulated effectively using this numerical method.

关 键 词：结构网格 非规则区域 差分法 

分 类 号：O357[理学—流体力学]