The unsteady turbulent flow around a three-dimensional finite-span wing at stall is investigated by means of a zonal detached-eddy simulation. The computation captures a nondelayed development of unsteady structures at the beginning of the separation and accurately resolves the energy cascade in the fully turbulent mixing layer over a large frequency range. A comparison with the experimental data shows that the zonal detached-eddy simulation approach clearly improves the prediction of the mean flow, whereas classical Reynolds-averaged Navier–Stokes methods usually fail. A spectral analysis of pressure signals highlights the origin and the characteristics of the various unsteady mechanisms involved in this complex flow.


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    Titel :

    Zonal Detached-Eddy Simulation of Separated Flow Around a Finite-Span Wing


    Beteiligte:
    Richez, F. (Autor:in) / Le Pape, A. (Autor:in) / Costes, M. (Autor:in)

    Erschienen in:

    AIAA Journal ; 53 , 11 ; 3157-3166


    Erscheinungsdatum :

    2015-09-21


    Format / Umfang :

    10 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch