Active Drag Control for a Generic Car Model

  • A. Brunn
  • E. Wassen
  • D. Sperber
  • W. Nitsche
  • F. Thiele
Part of the Notes on Numerical Fluid Mechanics and Multidisciplinary Design (NNFM) book series (NNFM, volume 95)

Abstract

Experimental and numerical investigations were carried out aiming at the reduction of the total aerodynamic drag of a generic car model by means of active separation control. For two different configurations separate control approaches were tested, taking into account the differences in the wake topology of the models. The targeted excitation of the respective dominant structures in the wake region leads to their effective attenuation. The experiments as well as the numerical simulations showed that a weakening of a spanwise vortex in the separated flow over the slant is strongly coupled with the occurrence of stronger streamwise vortices along the slant edges and vice versa.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2007

Authors and Affiliations

  • A. Brunn
    • 1
  • E. Wassen
    • 2
  • D. Sperber
    • 1
  • W. Nitsche
    • 1
  • F. Thiele
    • 2
  1. 1.Institute of Aeronautics and AstronauticsTechnical University BerlinBerlinGermany
  2. 2.Institute of Fluid Mechanics and Engineering AcousticsTechnical University BerlinBerlinGermany

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