We report direct numerical simulations of incompressible unsteady open-channel flow. Two mechanisms of turbulence production are considered: shearat the bottom and externally imposed stress at the free surface. We concentrate upon the effects of mutual interaction of small-amplitude gravity waves with in-depth turbulence and statistical properties of the near-free-surface region. Extensions of our approach can be used to study turbulent mixing in the upper ocean and wind-sea interaction, and to provide diagnostics of bulk turbulence.


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    Title :

    Interaction of surface waves with turbulence: direct numerical simulations of turbulent open-channel flow


    Additional title:

    Wechselwirkung zwischen Oberflaechenwellen und Wirbelbildung: direkte numerische Simulation einer offenen Kanalstroemung


    Contributors:
    Borue, V. (author) / Orszag, S.A. (author)

    Published in:

    Publication date :

    1995


    Size :

    23 Seiten, 12 Bilder, 19 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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