Analysis of a fractional-step method on overset grids

被引：31
|
作者：
Burton, TM [1 ]
Eaton, JK [1 ]
机构：
[1] Stanford Univ, Dept Engn Mech, Stanford, CA 94305 USA
来源：
JOURNAL OF COMPUTATIONAL PHYSICS | 2002年 / 177卷 / 02期
关键词：
unsteady Navier-Stokes; fractional-step; overset grids; staggered grid;
D O I：
10.1006/jcph.2002.7012
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
A fractional-step method for solving the incompressible Navier-Stokes equations on overset grids is derived as a matrix factorization of the spatially and temporally discretized system of equations. The algorithm is applied to several test problems using second-order-accurate finite-volume flux differencing on staggered grid systems and a hybrid implicit/explicit time advancement scheme. Spatial order of accuracy is shown to depend on the behavior of the overset grid overlap during grid refinement. The temporal order of accuracy of the time advancement algorithm on a single grid is maintained on the overset grid. (C) 2002 Elsevier Science (USA).
引用
收藏
页码：336 / 364
页数：29
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