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Dynamical structure of the turbulent boundary layer on rough surface

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    0360701 - ÚT 2012 RIV AT eng A - Abstract
    Uruba, Václav - Jonáš, Pavel - Hladík, Ondřej
    Dynamical structure of the turbulent boundary layer on rough surface.
    82nd Annual Scientific Conference of the International Association of Applied Mathematics and Mechanics. Graz: Graz University of Technology, 2011 - (Brenn, G.). s. 279-279. ISBN 978-3-85125-145-6.
    [Annual Scientific Conference of the International Association of Applied Mathematics and Mechanics /82./. 18.04.2011-21.04.2011, Graz]
    R&D Projects: GA ČR GA101/08/1112; GA ČR GAP101/10/1230
    Institutional research plan: CEZ:AV0Z20760514
    Keywords : turbulent boundary layer * dynamics * rough surface
    Subject RIV: BK - Fluid Dynamics

    The experiments on dynamics of turbulent boundary layer on the plane rough wall without pressure gradient are to be presented. Sand roughness of the wall is considered. Measurements are carried out using Time-Resolved PIV technique in plains parallel and perpendicular to the wall. Dynamics of the patterns is studied using Proper Orthogonal Decomposition technique evaluating energetic structures in the flow. The results on rough wall are compared with the base case of boundary layer on smooth wall.
    Permanent Link: http://hdl.handle.net/11104/0198189

     
     
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