Results are given from a study in which models used in large-eddy simulation of turbulent flow are tested using results of exact simulations of the Navier-Stokes equations. The results to date are for models of the eddy-viscosity type applied to incompressible homogeneous turbulence (either isotropic or in the presence of applied irrotational plane strain). The comparisons are by means of correlation coefficients; model parameters are calculated by matching the r.m.s. magnitudes of the exact and modeled quantities. Effects on these correlation coefficients and model parameters are shown for variations in attributes of the large-eddy simulation (e.g., filter type and width, differencing method) as well as in parameters of the flow simulated (e.g., Reynolds number, strain rate). (DePo)


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    Titel :

    Direct testing of subgrid-scale models


    Weitere Titelangaben:

    Direkte Erprobung nicht massstabsgerechter Flugzeugmodelle


    Beteiligte:
    McMillan, O.J. (Autor:in) / Ferziger, J.H. (Autor:in)

    Erschienen in:

    AIAA-Papers ; Jan ; 1-9


    Erscheinungsdatum :

    1979


    Format / Umfang :

    9 Seiten, 9 Bilder, 3 Tabellen, 13 Quellen


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Direct Testing of Subgrid-Scale Models

    J. H. Ferziger | AIAA | 1979


    Direct testing of subgrid-scale models

    MCMILLAN, O. / FERZIGER, J. | AIAA | 1979


    Improved subgrid-scale models for large-eddy simulation

    BARDINA, J. / FERZIGER, J. / REYNOLDS, W. | AIAA | 1980


    Tests of subgrid-scale models in strained turbulence

    MCMILLAN, O. / FERZIGER, J. / ROGALLO, R. | AIAA | 1980


    Scale-Similar Subgrid Stress Models for Large-Eddy Simulations

    Sarghini, F. / Piomelli, U. / AIAA | British Library Conference Proceedings | 1998