LES, coarse LES, and transient RANS comparisons on the flow across a tube bundle

被引：2

作者：

Benhamadouche, S ^{[1
]}

Laurence, D ^{[1
]}

机构：

[1] Elect France, R&D, MFTT, F-78400 Chatou, France

来源：

ENGINEERING TURBULENCE MODELLING AND EXPERIMENTS 5 | 2002年

关键词：

LES; RSTM; TRANS; tube bundle; 3D versus 2D; finite volume method;

D O I：

10.1016/B978-008044114-6/50027-2

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

The cross-flow in a staggered tube bundle is computed with an LES and a transient Reynolds Stress Transport Model (RSTM) in 2D and 3D, with two levels of grid refinement. The numerical method is based on a finite volume approach on unstructured grids using a collocated arrangement for all the unknowns. It is shown that the LES results on the fine mesh are comparable to a DNS and experiments and good agreement is achieved with a coarse mesh. The RSTM also produced satisfactory results in 3D but showed no advantage over the LES when the grid was coarsened. The 2D RSTM, which produced strong vortex shedding, was found to be physically unreasonable.

引用

页码：287 / 296

页数：10

共 15 条

[1] Two dimensional time dependent simulation of the subcritical flow in a staggered tube bundle using a subgrid scale model [J].