Double large field stereoscopic PIV in a high Reynolds number turbulent boundary layer
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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.
KeywordsParticle Image Velocimetry Turbulent Boundary Layer Particle Image Velocimetry Image Stereoscopic Particle Image Velocimetry Streamwise Velocity Component
This work has been performed under the WALLTURB project. WALLTURB (A European synergy for the assessment of wall turbulence) is funded by the CEC under the 6th framework program (CONTRACT No: AST4CT2005516008). Part of the computations presented in this paper were carried out using the Grid’5000 experimental testbed, an initiative from the French Ministry of Research through the ACI GRID incentive action, INRIA, CNRS and RENATER and other contributing partners (see https://www.grid5000.fr).
- Adrian RJ, Meinhart CD, Tomkins CD (2000) Vortex organisation in the outer region of the turbulent boundary layer. J Fluid Mech 422(1)Google Scholar
- Foucaut JM, Coudert S, Kostas J, Stanislas M, Braud P, Fourment C, Delville J, Tutkun M, Mehdi, Johansson P, George W (2007) Study of the unsteady aspects of turbulence in the near wall region of a boundary layer using High Speed SPIV. In: 7th International symposium on particle image velocimetryGoogle Scholar
- Ganapathisubramani B, Longmire EK, Marusic I (2006) Experimental investigation of vortex properties in a turbulent boundary layer. Phys Fluids 18(055105.114)Google Scholar
- Hoyez M (1990) Etude des caracteristiques instationnaires d’une couche limite turbulente de plaque plane sans gradient de pression. PhD thesis, UST Lille 1, Villeneuve d’Ascq, FranceGoogle Scholar
- Kahler CJ, Kompenhans J (2000) Fundamentals of multiple plane stereo PIV. Exp Fluids (Suppl.):S70-S77Google Scholar
- Klebanoff PS (1955) Characteristics of turbulence in a boundary layer with zero pressure gradient. NACA report 1247Google Scholar
- Kostas J, Foucaut JM, Stanislas M (2005) Application of double SPIV on the near wall turbulence structure of an adverse pressure gradient turbulent boundary layer. In: 6th International symposium on particle image velocimetryGoogle Scholar
- Tutkun M (2008) Structure of zero pressure gradient high reynolds number turbulent boundary layers. PhD thesis, Chalmers University of Technology, Goteborg, Sweden, ISBN: 978-91-7385-166-4Google Scholar