边界拟合坐标涡量-流函数绕物体流动计算  

Around Body Flow Computation with Vortex-Flow-streamFunction in Boundary Fitted Coordinates

作　　者：甘孜 

机构地区：[1]重庆交通学院河海建筑工程系,重庆400074

出　　处：《重庆建筑大学学报》2003年第6期58-61,66,共5页Journal of Chongqing Jianzhu University

摘　　要：列出了用边界拟合坐标表示的涡量-流函数绕流计算偏微分方程组,及其交替隐式有限差分和显式有限差分方程组。用自动调控边界计算了矩形区域单园柱绕流运动,具有无穷域绕流特征。绘制了速度矢量分布图,和流函数,涡量,两个分速度及压强的等值线分布图。In this paper, partial differential equations of vortex flow-stream function in boundary fitted coordinates and related ADI equations were listed. The flow around a cylinder in quadrilateral area by auto control boundary was computed. The diagram of distribution of speed arrow, constant lines of flow-stream function, vortex, two speed parts and pressure were studied.

关 键 词：涡量一流函数 边界拟合坐标 有限差分 偏微分方程组 等值线分布图 

分 类 号：O351.2[理学—流体力学]