Numerical simulations of turbulent heat transfer in a channel with one wavy wall

被引：0
|
作者：
Errico, O. [1 ]
Cavazzuti, M. [1 ]
Angeli, D. [1 ]
Stalio, E. [1 ]
机构：
[1] Univ Modena & Reggio Emilia, DIMeC, Via Vignolese 905, I-41125 Modena, Italy
来源：
THMT-12. PROCEEDINGS OF THE SEVENTH INTERNATIONAL SYMPOSIUM ON TURBULENCE, HEAT AND MASS TRANSFER | 2012年
关键词：
FLOW; MODEL;
D O I：
10.1615/ICHMT.2012.ProcSevIntSympTurbHeatTransfPal.1290
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Wavy surfaces are encountered in a large variety of applications, and are well-known for enhancing heat and mass transfer mechanisms. The present study numerically investigates the flow dynamic and heat transfer for turbulent flow in a channel with one flat and one wavy wall. Investigations have been conducted for a Prandtl number Pr = 0.71 and Reynolds numbers Re = 13 840 and Re = 19 000, based on the bulk velocity and the hydraulic diameter. Direct Numerical Simulations (DNSs) have been performed for a deep understanding of the dynamic effects on the heat transfer mechanisms for the case of turbulent flow in the channel with one wavy wall. The performance of two different Reynolds-Averaged Navier Stokes (RANS) turbulence models, namely the SST and the q-zeta, selected for their favorable characteristics, is assessed against the DNSs results. The applicability of the two selected RANS model is ascertained from a qualitative point of view.
引用
收藏
页码：1251 / 1261
页数：11
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