Theory and Application of Regularization Modeling of Turbulence

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    Turbulence readily arises in numerous flows in nature and technology. The large number of degrees of freedom of turbulence poses serious challenges to numerical approaches aimed at simulating and controlling such flows. While the Navier-Stokes equations are commonly accepted to precisely describe fluid turbulence, alternative coarsened descriptions need to be developed to cope with the wide range of length and time scales. These coarsened descriptions are known as large-eddy simulations in which one aims to capture only the primary features of a flow, at considerably reduced computational effort. Such coarsening introduces a closure problem that requires additional phenomenological modeling. A systematic approach to the closure problem, known as regularization modeling, will be reviewed. Its application to turbulent mixing will be illustrated. Leray and LANSalpha regularization are discussed in some detail.
    Original languageUndefined
    Title of host publicationTurbulence and Interactions : proceedings of the TI 2012 conference
    EditorsM.O. Deville, J-L. Estivalezes, V. Gleize, T-H. Lê, M. Terracol, S. Vincent
    Place of PublicationBerlin Heidelberg
    Number of pages12
    ISBN (Print)978-3-662-43488-8
    Publication statusPublished - 2014
    EventTurbulence and Interactions Conference, TI 2012 - La Saline-les-Bains, La Réunion, France
    Duration: 11 Jun 201214 Jun 2012

    Publication series

    NameNotes on Numerical Fluid Mechanics and Multidisciplinary Design
    ISSN (Print)1612-2909


    ConferenceTurbulence and Interactions Conference, TI 2012
    Other11-14 June 2012


    • EWI-25027
    • METIS-306011
    • IR-91881

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