An idealized shock/boundary-layer interaction problem that is two dimensional in the mean but with a three-component mean velocity field is studied using large-eddy simulations. The problem isolates some aspects of three-dimensionality while avoiding others and can thus offer insights into the differences between two- and three-dimensional problems. The addition of a crossflow increases the size of the separation bubble quite substantially when normalized by the boundary-layer thickness or the momentum thickness but less substantially when normalized by the displacement thickness. All cases studied are found to have a very thin precursor separation bubble before the point of true separation that extends for at least one boundary-layer thickness but remains fully within the viscous sublayer. Simulations at different Reynolds numbers show that the flow reattaches after the precursor bubble at sufficiently high Reynolds number.


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    Titel :

    Large-Eddy Simulations of Idealized Shock/Boundary-Layer Interactions with Crossflow


    Beteiligte:
    Larsson, Johan (Autor:in) / Kumar, Vedant (Autor:in) / Oberoi, Nikhil (Autor:in) / Renzo, Mario Di (Autor:in) / Pirozzoli, Sergio (Autor:in)

    Erschienen in:

    AIAA Journal ; 60 , 5 ; 2767-2779


    Erscheinungsdatum :

    2022-01-31


    Format / Umfang :

    13 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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