Fluid force and symmetry breaking modes of a 3D bluff body with a base cavity

@inproceedings{Evrard2016FluidFA,
  title={Fluid force and symmetry breaking modes of a 3D bluff body with a base cavity},
  author={Antoine Evrard and Olivier Cadot and Vincent Herbert and Denis Ricot and Robert Vigneron and Jean D{\'e}lery},
  year={2016}
}
A cavity at the base of the squareback Ahmed model at Re ' 4× 10 is able to reduce the base suction by 18% and the drag coefficient by 9%, while the geometry at the separation remains unaffected. Instantaneous pressure measurements at the body base, fluid force measurements and wake velocity measurements are investigated varying the cavity depth from 0 to 35% of the base height. Due to the reflectional symmetry of the rectangular base, there are two Reflectional Symmetry Breaking (RSB) mirror… CONTINUE READING
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