首页 | 本学科首页   官方微博 | 高级检索  
     


Numerical solution of the incompressible Navier–Stokes equations with an upwind compact difference scheme
Authors:Ma Yanwen  Fu Dexun  T. Kobayashi  N. Taniguchi
Abstract:
A new finite difference method for the discretization of the incompressible Navier–Stokes equations is presented. The scheme is constructed on a staggered‐mesh grid system. The convection terms are discretized with a fifth‐order‐accurate upwind compact difference approximation, the viscous terms are discretized with a sixth‐order symmetrical compact difference approximation, the continuity equation and the pressure gradient in the momentum equations are discretized with a fourth‐order difference approximation on a cell‐centered mesh. Time advancement uses a three‐stage Runge–Kutta method. The Poisson equation for computing the pressure is solved with preconditioning. Accuracy analysis shows that the new method has high resolving efficiency. Validation of the method by computation of Taylor's vortex array is presented. Copyright © 1999 John Wiley & Sons, Ltd.
Keywords:finite difference scheme  compact difference method  higher‐order scheme  Navier–  Stokes equations  incompressible flow
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号