Title: A glimpse on passive control using porous media for incompressible aerodynamics

Authors: Charles-Henri Bruneau; Emmanuel Creusé; Patrick Gilliéron; Iraj Mortazavi

Addresses: Université de Bordeaux, IMB, CNRS, UMR 5251, INRIA Bordeaux, Team MC2, 351 cours de la Libération, F-33405 Talence, France ' Université Lille 1, LPP, CNRS UMR 8524, INRIA Lille Nord Europe, Team SIMPAF, Cité Scientifique, F-59655 Villeneuve d'Ascq, France ' Recherche et Développement en Mécanique des Fluides et Aérodynamique, RDMFA, F-78640 Neauphle le Château, France ' Université de Bordeaux, IMB, CNRS, UMR 5251, INRIA Bordeaux, Team MC2, 351 cours de la Libération, F-33405 Talence, France

Abstract: The control of two-dimensional flows around bluff-bodies is achieved using porous devices added to some parts of the body. The bodies can be square or circular cylinders as well as a moving Ahmed body on the top of a road. The flow in different media is modelled by means of the penalisation method. A good choice of the location of the porous interfaces yields a significant improvement of the aerodynamic quantities. Finally, a coupled active/passive control is presented in order to achieve a better drag reduction.

Keywords: direct numerical simulation; passive flow control; porous layer; Ahmed body.

DOI: 10.1504/IJAD.2014.057806

International Journal of Aerodynamics, 2014 Vol.4 No.1/2, pp.70 - 86

Available online: 26 Jun 2013 *

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