EFFECTIVE DOWNSTREAM BOUNDARY-CONDITIONS FOR INCOMPRESSIBLE NAVIER-STOKES EQUATIONS

被引：91

作者：

BRUNEAU, CH ^{[1
]}

FABRIE, P ^{[1
]}

机构：

[1] ENSAM,LEPT,URA 873,MONTPELLIER,FRANCE

来源：

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS | 1994年 / 19卷 / 08期

关键词：

BOUNDARY CONDITIONS; ARTIFICIAL BOUNDARY; INTERNAL FLOW; INCOMPRESSIBLE FLOWS;

D O I：

10.1002/fld.1650190805

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

The aim of this paper is to give open boundary conditions for the incompressible Navier-Stokes equations. From a weak formulation in velocity-pressure variables, some natural boundary conditions involving the traction or pseudotraction and inertial terms are established. Numerical experiments on the flow behind a cylinder show the efficiency of these conditions, which convey properly the vortices downstream. Comparisons with other boundary conditions for the velocity and pressure are also performed.

引用

页码：693 / 705

页数：13

共 12 条

[1]

BEGUE C, 1987, CR ACAD SCI I-MATH, V304, P23

[2]

BEGUE C, 1988, PITMAN RES NOTES MAT, V181, P179

[3]

BRUNEAU CH, UNPUB NEW EFFICIENT

[4] MIXED-FINITE ELEMENT APPROXIMATION OF STOKES TYPE PROBLEMS [J].