This study evaluates the feasibility of applying a newly developed dynamic hybrid Reynolds-averaged Navier–Stokes/large-eddy simulation modeling framework to predict the massively separated flow around a GLC-305 airfoil with a 22.5 min leading-edge glaze ice accretion. Three-dimensional numerical simulations were performed at R e = 3.5 × 10 6 , M = 0.12 , and α = 6 deg . Comparisons were made between experimental data and simulation results computed using two Reynolds-averaged Navier–Stokes models (Menter’s shear stress transport k - ω and Spalart–Allmaras) and two hybrid Reynolds-averaged Navier–Stokes/large-eddy simulation models (delayed detached-eddy simulation and the dynamic hybrid Reynolds-averaged Navier–Stokes/large-eddy simulation model). All models overpredicted the mean wall static pressures on the suction surface. Wall pressure predictions obtained using the Reynolds-averaged Navier–Stokes and dynamic hybrid Reynolds-averaged Navier–Stokes/large-eddy simulation models exhibited qualitatively better agreement with experiments than did delayed detached-eddy simulation predictions, and the dynamic hybrid Reynolds-averaged Navier–Stokes/large-eddy simulation model produced the best agreement for the mean streamwise velocity profiles. Turbulent intensity profiles showed substantial mesh sensitivity for the delayed detached-eddy simulation model simulations, whereas the dynamic hybrid Reynolds-averaged Navier–Stokes/large-eddy simulation model results qualitatively compared well with the experiments and exhibited only a small degree of mesh sensitivity. Unique to the dynamic hybrid Reynolds-averaged Navier–Stokes/large-eddy simulation simulations was the accurate prediction of the flow reattachment location. None of the Reynolds-averaged Navier–Stokes models predicted flow reattachment, and the delayed detached-eddy simulation model predicted a substantially delayed flow reattachment.


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    Titel :

    Hybrid Reynolds-Averaged Navier–Stokes/Large-Eddy Simulation Models for Flow Around an Iced Wing


    Beteiligte:
    Alam, M. F. (Autor:in) / Thompson, David S. (Autor:in) / Walters, D. Keith (Autor:in)

    Erschienen in:

    Journal of Aircraft ; 52 , 1 ; 244-256


    Erscheinungsdatum :

    2014-05-12


    Format / Umfang :

    13 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch