Numerical simulation of 3D backward facing step flows at various Reynolds numbers

被引：1
作者：
Louda, Petr [1 ]
Prihoda, Jaromir [1 ]
Kozel, Karel [2 ]
机构：
[1] Inst Thermomech AS CR, Prague, Czech Republic
[2] Czech Tech Univ, CR-16635 Prague, Czech Republic
来源：
EFM14 - EXPERIMENTAL FLUID MECHANICS 2014 | 2015年 / 92卷
关键词：
backward facing step; EARSM turbulence model; MODEL;
D O I：
10.1051/epjconf/20159202049
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The work deals with the numerical simulation of 3D turbulent flow over backward facing step in a narrow channel. The mathematical model is based on the RANS equations with an explicit algebraic Reynolds stress model (EARSM). The numerical method uses implicit finite volume upwind discretization. While the eddy viscosity models fail in predicting complex 3D flows, the EARSM model is shown to provide results which agree well with experimental PIV data. The reference experimental data provide the 3D flow field. The simulations are compared with experiment for 3 values of Reynolds number.
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页数：4
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