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modélisation de la turbulence

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Effet de vent latéral sur un modèle simplifié de voiturepar une méthode DES
Emmanuel Guilmineau, Oussama Chikhaoui, Ganbo Deng, Michel Visonneau
Journal:

Mechanics & Industry / Volume 10 / Issue 3-4 / May 2009

Published online by Cambridge University Press:

05 August 2009, pp. 203-209

Print publication:

May 2009
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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.