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Tomographic Particle Image Velocimetry Measurements of a High Reynolds Number Turbulent Boundary Layer.

type de publication      communication internationale avec actes publiés
date de publication 2010
auteur(s) Atkinson Callum; Coudert Sébastien; Foucaut Jean-Marc; Stanislas Michel; Soria Julio
  
conférence Progress in Wall Turbulence: Understanding and Modeling
     dates de 21-04-2009 à 23-04-2009
     lieu Lille, France
     nom des actes Progress in Wall Turbulence: Understanding and Modeling, Proceedings of the WALLTURB International Workshop held in Lille, France, April 21-23, 2009. M. Stanislas, J. Jimenez, I. Marusic Editors, ERCOFTAC Series vol 14, Springer
  
  Sous presse
ISBN / ISSN 978-90-481-9602-9
résumé Streamwise/wall-parallel volumes of a turbulent boundary layer at Req = 7800 and 13300 are measured using a 4 camera (2048x2048 px) tomographic particle image velocimetry (Tomo-PIV) system in the turbulent boundary layer wind tunnel at the Laboratoire de M´ecanique de Lille (LML). A measurement volume of 1200x180x1200 points was achieved, the large boundary layer provided by this tunnel (d ~ 0:3 m) resulting in measurements volumes of 470+ x70+ x470+ and 920+x140+x920+, respectively. Volumes were reconstructed using both the standard MART algorithm and the accelerated MLOS-SMART approach. The quality of the data acquired by these two techniques is assessed based on the mean velocity profiles, velocity fluctuations and velocity power spectra.
mots clés Tomographic PIV Turbulent boundary layer
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