OPEN BOUNDARY-CONDITION SYMPOSIUM BENCHMARK SOLUTION - STRATIFIED FLOW OVER A BACKWARD-FACING STEP

被引：35

作者：

LEONE, JM

机构：

[1] Lawrence Livermore National Laboratory, Livermore, California, 94550

来源：

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS | 1990年 / 11卷 / 07期

关键词：

Boussinesq; Finite element; Open boundary conditions; Stratified backward‐facing step;

D O I：

10.1002/fld.1650110705

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

This paper presents a detailed numerical solution to a simplified version of two‐dimensional stratified flow over a backward‐facing step with a Froude number of 16/9, a Reynolds number of 800 and a Prandtl number of 1—one of the Open Boundary Condition Symposium test problems. The steady state solution was derived by integrating the time‐dependent Boussinesq equations forward in time using a semi‐implicit finite‐element‐based model on a 38400‐element mesh. In addition to presenting the results derived on this grid, the paper also presents the results of a Richardson extrapolation calculation for a set of ‘key’ parameters. It is hoped that this solution can be used as a baseline to compare the performance of the various techniques discussed at the Open Boundary Condition Symposium. Copyright © 1990 John Wiley & Sons, Ltd

引用

页码：969 / 984

页数：16