Numerical simulation of turbulent flow and heat transfer over rotating disks using a hybrid LES-RANS method

被引：0
|
作者：
Kappis, L. [1 ]
Turnow, J. [1 ]
Kornev, N. [1 ]
机构：
[1] Univ Rostock, Dept Mech Engn & Marine Technol, Modelling & Simulat, Albert Einstein Str 2, D-18059 Rostock, Germany
来源：
TURBULENCE HEAT AND MASS TRANSFER 9 (THMT-18) | 2018年
关键词：
D O I：
10.1615/THMT-18.650
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
In this research, a fluid-cooled rotating disk of finite thickness is investigated considering varying angular and crossflow velocities. Turbulent flow and heat transfer are modeled by use of URANS, LES and a hybrid method (IDDES). Results revealed that by increasing the Reynolds number substantially, LES-modelling predicts strong divergency from the obtained experimental data even for refined grid resolutions. However, the use of the hybrid k-omega-SST-IDDES model allows a fairly accurate prediction of turbulent heat transfer as well for the stationary system as for the rotating disk even for high Reynolds numbers.
引用
收藏
页码：625 / 634
页数：10
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