European Turbulence Conference 14

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Symmetries in the turbulent wake of a sphere

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The axisymmetry of the turbulent wake past a sphere is studied experimentally at Re = 1.910^4. The set-up preserves the axisymmetry of the sphere so that the shedding has no preferred direction. The structure of the wake is analyzed from stereo-PIV measurements in the cross-flow directions and the effect of azimuthal disturbances are considered.

Author(s):

Marc Gohlke    
PSA Peugeot Citroën
France

Mathieu Grandemange    
PSA Peugeot Citroën / ENSTA ParisTech
France

Olivier Cadot    
ENSTA ParisTech
France

 

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