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Preliminary results of the conditional analysis of wall friction during laminarturbulent transition of a rough wall boundary layer

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    0377870 - ÚT 2013 DE eng A - Abstract
    Jonáš, Pavel - Hladík, Ondřej - Mazur, Oton - Uruba, Václav
    Preliminary results of the conditional analysis of wall friction during laminarturbulent transition of a rough wall boundary layer.
    83rd Annual Meeting of the International Association of Applied Mathematics and Mechanics. Darmstadt: TU Darmstadt, 2012 - (Alber, H.; Tropea, C.). s. 214
    [Annual Meeting of the International Association of Applied Mathematics and Mechanics /83./. 26.03.2012-30.03.2012, Darmstadt]
    R&D Projects: GA ČR(CZ) GAP101/12/1271; GA ČR GAP101/10/1230
    Institutional support: RVO:61388998
    Keywords : laminar/turbulent transition * wall friction * rough wall * boundary layer
    Subject RIV: BK - Fluid Dynamics
    http://www.gamm2012.tu-darmstadt.de/

    The transitional intermittency is investigated in the zero pressure gradient boundary layer developing on the surface covered with sand paper. The transitional intermittency factor distribution is derived by means of the TERA method. Evaluated are the probability density function and the conditioned probability density functions of the wall friction, relevant moments and the mean residence time of the wall friction in laminar and turbulent state.
    Permanent Link: http://hdl.handle.net/11104/0217816

     
     
Number of the records: 1  

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