Active procedures to control the flow past the Ahmed body with a 25° rear window

Charles-Henri Bruneau (1, 2) , Emmanuel Creusé (3, 4) , Delphine Depeyras (1) , Patrick Gillieron (5) , Iraj Mortazavi (1, 2)

1 IMB - Institut de Mathématiques de Bordeaux
2 MC2 - Modélisation, contrôle et calcul
3 LPP - Laboratoire Paul Painlevé - UMR 8524
4 SIMPAF - SImulations and Modeling for PArticles and Fluids
5 Technocentre Renault [Guyancourt]

Ahmed body with a 25 degree rear window is used to represent a simpli ed car geometry. Two and three-dimensional simulations are performed to analyse the flow behaviour around such a vehicle. Sucking and blowing jets or slots are added on the body to control the flow. The results presented show that good drag reductions are achieved for a good choice of the active procedure.

Domaines: Analyse numérique [math.NA]

Charles-Henri Bruneau, Emmanuel Creusé, Delphine Depeyras, Patrick Gillieron, Iraj Mortazavi. Active procedures to control the flow past the Ahmed body with a 25° rear window. International Journal of Aerodynamics, 2011, 1 (3/4), pp.299-317. ⟨10.1504/IJAD.2011.038847⟩. ⟨hal-00664963⟩