Multigrid solutions of the Euler and Navier-Stokes equations on unstructured grids

被引:0
|
作者
Lin, FP [1 ]
机构
[1] Natl Ctr High Performance Comp, Hsinchu, Taiwan
关键词
multigrid; edge-based formulation; upwind/LED scheme; FAS algorithm; unstructured meshes;
D O I
10.1002/(SICI)1097-0363(19990430)29:8<921::AID-FLD811>3.0.CO;2-W
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
A computationally efficient multigrid algorithm for upwind edge-based finite element schemes is developed for the solution of the two-dimensional Euler and Navier-Stokes equations on unstructured triangular grids. The basic smoother is based upon a Galerkin approximation employing an edge-based formulation with the explicit addition of an upwind-type local extremum diminishing (LED) method. An explicit time stepping method is used to advance the solution towards the steady state. Fully unstructured grids are employed to increase the flexibility of the proposed algorithm. A full approximation storage (FAS) algorithm is used as the basic multigrid acceleration procedure. Copyright (C) 1999 John Wiley & Sons, Ltd.
引用
收藏
页码:921 / 934
页数:14
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