Analysis of the Active and Passive Drag Reduction Strategies Behind a Square Back Ground Vehicle

  • Charles-Henri Bruneau
  • Emmanuel Creusé
  • Delphine Depeyras
  • Patrick Gilliéron
  • Iraj Mortazavi
Conference paper
Part of the Lecture Notes in Applied and Computational Mechanics book series (LNACM, volume 79)

Abstract

A square back Ahmed body is used to mimic a heavy vehicle, bus or truck, in order to derive control processes that yield a significant drag reduction. The first step is to analyse carefully the structures in the flow that have a strong impact on the drag forces. Then, active and passive controls using blowing jets or porous medium layers are presented and discussed. The results are analyzed showing the direct impact of the control on the flow behaviour.

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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  • Charles-Henri Bruneau
    • 1
    • 2
  • Emmanuel Creusé
    • 3
    • 4
  • Delphine Depeyras
    • 1
    • 2
  • Patrick Gilliéron
    • 5
  • Iraj Mortazavi
    • 1
    • 2
  1. 1.IMB, UMR 5251Univ. BordeauxTalenceFrance
  2. 2.CNRS, IMB, UMR 5251. INRIA, Team MC2TalenceFrance
  3. 3.LPP (UMR CNRS 8524)Université Lille 1Villeneuve-d’AscqFrance
  4. 4.Team SIMPAF INRIA Lille Nord EuropeVilleneuve-d’AscqFrance
  5. 5.Renault, Direction de La RechercheGuyancourtFrance

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