Large eddy simulation of flow through a streamwise-periodic structure

被引：54

作者：

Hutter, C. ^{[1
]}

Zenklusen, A. ^{[1
]}

Kuhn, S. ^{[2
]}

von Rohr, Ph. Rudolf ^{[1
]}

机构：

[1] ETH, Inst Proc Engn, CH-8092 Zurich, Switzerland

[2] MIT, Cambridge, MA 02139 USA

来源：

CHEMICAL ENGINEERING SCIENCE | 2011年 / 66卷 / 03期

关键词：

Simulation; Porous media; Turbulence; Mixing; Streamwise-periodic structure; LES; HEAT-TRANSFER; TRANSPORT; PERMEABILITY; TURBULENCE; CFD;

D O I：

10.1016/j.ces.2010.11.015

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

We present a dynamic large eddy simulation of flow in a periodic open-cell structure in the turbulent regime. The flow domain is represented by a tube with inner diameter of 7 mm with integrated highly porous media. Simulations were performed for three different Reynolds numbers ranging from 1200 to 4500 based on the empty tube diameter. The obtained results were compared to experimental data for which measurements were performed downstream of the same periodic geometry manufactured from a transparent material by stereolithography. The measured pressure drop and turbulence statistics compare well to the results of the large eddy simulations. The numerical results give an insight into the forced convection mechanism within the porous media and enhance the understanding of flow through foamlike structures. Furthermore specific geometric details like the influence of the ligament shape of the porous material can be investigated applying this technique. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：519 / 529

页数：11

共 36 条

[1] Permeability and thermal transport in compressed open-celled foams [J].