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Effet de vent latéral sur un modèle simplifié de voiture par une méthode DES

Published online by Cambridge University Press:  05 August 2009

Emmanuel Guilmineau
Affiliation:
Laboratoire de Mécanique des Fluides, CNRS UMR 6598, École Centrale de Nantes, B.P. 92101, 44321 Nantes Cedex 3, France
Oussama Chikhaoui
Affiliation:
Laboratoire de Mécanique des Fluides, CNRS UMR 6598, École Centrale de Nantes, B.P. 92101, 44321 Nantes Cedex 3, France
Ganbo Deng
Affiliation:
Laboratoire de Mécanique des Fluides, CNRS UMR 6598, École Centrale de Nantes, B.P. 92101, 44321 Nantes Cedex 3, France
Michel Visonneau
Affiliation:
Laboratoire de Mécanique des Fluides, CNRS UMR 6598, École Centrale de Nantes, B.P. 92101, 44321 Nantes Cedex 3, France
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Abstract

Cette étude traite des effets du vent latéral sur un modèle simplifié de voiture, appelé le modèle de Willy. Ce modèle sans arête sur la partie avant et avec un culot droit est plus adapté pour l'analyse des séparations instationnaires qui sont limitées au côté sous le vent et au culot. Les simulations sont réalisées à l'aide du code de calcul ISIS-CFD par une approche DES et les résultats sont comparés à des données expérimentales ainsi qu'à des résultats obtenus par une simulation RANSE. Les comparaisons portent sur la pression pariétale, la pression totale ainsi que sur les efforts et moment de lacet.

Type
Research Article
Copyright
© AFM, EDP Sciences, 2009

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