Flow manipulation around the Ahmed body with a rear window using passive strategies

Charles-Henri Bruneau; Patrick Gilliéron; Iraj Mortazavi

doi:10.1016/j.crme.2007.03.003

Flow manipulation around the Ahmed body with a rear window using passive strategies

Presented by: Michel Combarnous

Charles-Henri Bruneau ¹; Patrick Gilliéron ²; Iraj Mortazavi ¹

¹ Université Bordeaux 1, CNRS UMR 5466, INRIA FUTURS équipe MC2, 351, cours de la Libération, 33405 Talence, France
² Technocentre Renault, direction de la recherche, groupe mécanique des fluides et aérodynamique, 1, avenue du Golf, 78288 Guyancourt cedex, France

Comptes Rendus. Mécanique, Volume 335 (2007) no. 4, pp. 213-218.

Abstract
Résumé

The control of two-dimensional flows around the Ahmed body with a rear window on top of a road is achieved using porous devices added on some parts of the body. The modelling of the flow in different media is performed by means of the penalisation method. A good choice of the location of the porous interfaces yields an improvement of the aerodynamic parameters.

Une méthode de contrôle passif utilisant une interface poreuse est appliquée à l'écoulement du corps d'Ahmed à lunette arrière sur une route en dimension deux. L'écoulement à l'intérieur des différents milieux est modélisé par une méthode de pénalisation. Les résultats montrent qu'un choix approprié des milieux poreux conduit à des gains au niveau des paramètres aérodynamiques.

Received: 2007-02-23
Accepted: 2007-03-13
Published online: 2007-04-01

DOI: 10.1016/j.crme.2007.03.003

Keywords: Computational fluid mechanics, Ahmed body, Porous interface
Mot clés : Mécanique des fluides numérique, Corps d'Ahmed, Interface poreuse

Author's affiliations:

Charles-Henri Bruneau ¹; Patrick Gilliéron ²; Iraj Mortazavi ¹

¹ Université Bordeaux 1, CNRS UMR 5466, INRIA FUTURS équipe MC2, 351, cours de la Libération, 33405 Talence, France
² Technocentre Renault, direction de la recherche, groupe mécanique des fluides et aérodynamique, 1, avenue du Golf, 78288 Guyancourt cedex, France

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     author = {Charles-Henri Bruneau and Patrick Gilli\'eron and Iraj Mortazavi},
     title = {Flow manipulation around the {Ahmed} body with a rear window using passive strategies},
     journal = {Comptes Rendus. M\'ecanique},
     pages = {213--218},
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     volume = {335},
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     year = {2007},
     doi = {10.1016/j.crme.2007.03.003},
     language = {en},
}

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Charles-Henri Bruneau; Patrick Gilliéron; Iraj Mortazavi. Flow manipulation around the Ahmed body with a rear window using passive strategies. Comptes Rendus. Mécanique, Volume 335 (2007) no. 4, pp. 213-218. doi : 10.1016/j.crme.2007.03.003. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2007.03.003/

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