STUDY OF HEAT TRANSFER IN BACKWARD-FACING STEP FLOW USING PARTIALLY-AVERAGED NAVIER-STOKES (PANS) TURBULENCE MODELING METHOD

被引：5
|
作者：
Korinek, T. [1 ]
Tisovsky, T. [1 ]
机构：
[1] Tech Univ Liberec, Fac Mech Engn, Dept Power Engn Equipment, Studentska 2, Liberec, Czech Republic
来源：
CONFERENCE TOPICAL PROBLEMS OF FLUID MECHANICS 2019: PROCEEDINGS | 2019年
关键词：
Partially-Averaged Navier-Stokes; heat transfer; turbulent flow; numerical simulation; SIMULATION;
D O I：
10.14311/TPFM.2019.018
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
Backward facing step flow is one of the suitable cases for validation of a new turbulence model. The present study deals with numerical simulations of heat transfer from wall past the backward facing step. Numerical simulations are carried out using the Partially-Averaged Navier-Stokes method. The study was performed at Reynolds number Re-H = 28000 that is based on the height of the step. An influence of physical resolution was studied using various ratios f(k) of unresolved to total resolved turbulent kinetic energy. Results from numerical simulations were compared with experimental data performed at the same Re-H. The reattachment length varied with the fk ratio in a same way as the minimal value of the Skin friction coefficient and position of the peak of the Stanton number.
引用
收藏
页码：123 / 130
页数：8
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