Comptes Rendus
Active control of the flow behind a two-dimensional bluff body in ground proximity
Comptes Rendus. Mécanique, Volume 341 (2013) no. 3, pp. 289-297.

Active flow control around a two-dimensional geometry positioned near the ground is experimentally studied. Results for two model configurations are reported: one square-back and the other with a flap added at the rear-corner. The model rear end static pressure and the near-wake flow properties are derived from wall-pressure measurements, high-speed Particle Image Velocimetry acquisitions and hot-wire anemometry. The control flow is obtained from a pulsed jet system driven in open loop. The study aims at distinguishing the individual influence of the passive flap and the control system. The actuation frequency is shown to be a determining parameter regarding rear end pressure increase.

Reçu le :
Accepté le :
Publié le :
DOI : 10.1016/j.crme.2012.10.043
Mots clés : Fluid mechanics, Flow control, Unsteady wake flow, Particle image velocimetry
Sébastien Chaligné 1, 2 ; Thomas Castelain 1, 3 ; Marc Michard 1 ; Daniel Juvé 1

1 LMFA, UMR CNRS 5509, École centrale de Lyon, 36, avenue Guy-de-Collongue, 69134 Écully Cedex, France
2 Volvo Group Truck Technology, Renault Trucks SAS, Cab Engineering Lyon, 99, route de Lyon, 69806 Saint-Priest Cedex, France
3 Université Lyon 1, 43 Boulevard du 11 Novembre 1918, 69622 Villeurbanne Cedex, France
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Sébastien Chaligné; Thomas Castelain; Marc Michard; Daniel Juvé. Active control of the flow behind a two-dimensional bluff body in ground proximity. Comptes Rendus. Mécanique, Volume 341 (2013) no. 3, pp. 289-297. doi : 10.1016/j.crme.2012.10.043. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2012.10.043/

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