| 不可压粘流N－S方程的边界积分解法 |
| |
| 引用本文： | 陆志良,杨生.不可压粘流N－S方程的边界积分解法[J].力学学报,1996(2). |
| |
| 作者姓名： | 陆志良 杨生 |
| |
| 作者单位： | 南京航空航天大学六系 |
| |
| 摘 要： | 对原变量的Ｎ－Ｓ方程进行一阶时间离散，采用共轭梯度法解除压强－速度的耦合．对所得的一系列Ｌａｐｌａｃｅ方程、Ｐｏｓｓｉｏｎ方程和Ｈｅｌｍｈｏｔｚ方程均进行边界积分法求解，首次得到了粘性Ｎ－Ｓ方程的边界积分表示式．圆柱的定常、非定常尾迹计算结果表明了本文方法的有效性．
|
| 关 键 词： | 边界积分解法，Navier－Sicks方程，不可压流 |
THE BOUNDARY INTEGRAL METHOD FOR INCOMPRESSIBLE VISCOUS NAIER-STOKES EQUATION |
| |
| Lu Zhiliang,Yang Zuosheng.THE BOUNDARY INTEGRAL METHOD FOR INCOMPRESSIBLE VISCOUS NAIER-STOKES EQUATION[J].chinese journal of theoretical and applied mechanics,1996(2). |
| |
| Authors: | Lu Zhiliang Yang Zuosheng |
| |
| Abstract: | The first-order time splitting method is used to discretize the Navier-Stokes equations with primitive variables and a conjugate gradient method is used to decouple the variables.The resulted Laplace equations, Possion equations and Helmhotz equations are solved by using Boundary Integral Method and thus a boundary integral formulation for viscous Navier-Stokes equation is established for the first time.The numerical results for the steady and unsteady viscous flow aroulld cylindical body show the method developed in this paper is efficient. |
| |
| Keywords: | boundary integral method Navier-Stokes equation incompressible flow |
| 本文献已被 CNKI 等数据库收录！ |
