Double large field stereoscopic PIV in a high Reynolds number turbulent boundary layer

Sébastien Coudert (1) , Jean-Marc Foucaut (1) , Jim Kostas (1) , Michel Stanislas (1) , P. Braud (2) , C. Fourment (2) , J. Delville (2) , Murat Tutkun , H. Mehdi , P. Johansson (3) , W.K. George

1 LML - Laboratoire de Mécanique de Lille - FRE 3723
2 Département FTC - Département Fluides, Thermique et Combustion [Institut Pprime]
3 Department of Applied Physics [Gothenburg]

An experiment on a flat plate turbulent boundary layer at high Reynolds number has been carried out in the Laboratoire de Mecanique de Lille (LML, UMR CNRS 8107) wind tunnel. This experiment was performed jointly with LEA (UMR CNRS 6609) in Poitiers (France) and Chalmers University of Technology (Sweden), in the frame of the WALLTURB European project. The simultaneous recording of 143 hot wires in one transverse plane and of two perpendicular stereoscopic PIV fields was performed successfully. The first SPIV plane is 1 cm upstream of the hot wire rake and the second is both orthogonal to the first one and to the wall. The first PIV results show a blockage effect which based on both statistical results (i.e. mean, RMS and spatial correlation) and a potential model does not seem to affect the turbulence organization.

Mots clés: PARTICLE IMAGE VELOCIMETRY; WALL TURBULENCE; REGION; FUNDAMENTALS; FLOWS

Sébastien Coudert, Jean-Marc Foucaut, Jim Kostas, Michel Stanislas, P. Braud, et al.. Double large field stereoscopic PIV in a high Reynolds number turbulent boundary layer. Experiments in Fluids, 2011, 50 (1), pp.1-12. ⟨10.1007/s00348-009-0800-9⟩. ⟨hal-00610281⟩