Parametrizing hybrid RANS-LES approaches with the renormalization group

被引：0
|
作者：
De Langhe, C [1 ]
Merci, B [1 ]
Dick, E [1 ]
机构：
[1] State Univ Ghent, Dept Flow Heat & Combust Mech, B-9000 Ghent, Belgium
来源：
ADVANCES IN FLUID MECHANICS IV | 2002年
关键词：
D O I：
暂无
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
A two-equation turbulence model that can adjust itself from RANS to LES regimes is constructed using the renormalization group. When the grid-spacing gets too coarse for LES, the model tends to a RANS model. In well-resolved regions the model results in a LES subgrid-model. The renormalization group procedure leads to transport-equations that are dependent on the filterwidth and contain no adjustable constants.
引用
收藏
页码：579 / 586
页数：8
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