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Passive control of the flow around a square cylinder using porous media

✍ Scribed by Charles-Henri Bruneau; Iraj Mortazavi

Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
608 KB
Volume
46
Category
Article
ISSN
0271-2091

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✦ Synopsis

Abstract

The passive control of bluff body flows using porous media is investigated by means of the penalization method. This method is used to create intermediate porous media between solid obstacles and the fluid in order to modify the boundary layer behaviour. The study covers a wide range of two‐dimensional flows from low transitional flow to fully established turbulence by direct numerical simulation of incompressible Navier–Stokes equations. A parametric study is performed to illustrate the effect of the porous layer permeability and thickness on the passive control. The numerical results reveal the ability of porous media to both regularize the flow and to reduce the drag forces up to 30%. Copyright © 2004 John Wiley & Sons, Ltd.

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