Detached-eddy simulation of flow around the NREL phase VI blade

Jeppe Johansen, Niels N. Sørensen, J.A. Michelsen, S. Schreck

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    The detached-eddy simulation model implemented in the computational fluid dynamics code EllipSys3D is used to calculate the flow around the non-rotating NREL Phase VI wind turbine blade. Results are presented for flow around a parked blade at fixed angle of attack and a blade pitching along the blade axis. Computed blade characteristics are compared with experimental data from the NREL/NASA Ames Phase VI unsteady experiment. The detached-eddy simulation model is a method for predicting turbulence in computational fluid dynamics computations, which combines a Reynolds-averaged Navier–Stokes method in the boundary layer with a large-eddy simulation in the free shear flow. The present study focuses on static and dynamic stall regions highly relevant for stall-regulated wind turbines. Computations do predict force coefficients and pressure distributions fairly well. Results using detached-eddy simulation show considerably more three-dimensional flow structures compared to conventional two-equation Reynolds-averaged Navier–Stokes turbulence models, but no particular improvements are seen in the global blade characteristics. Copyright © 2002 John Wiley & Sons, Ltd.
    Original languageEnglish
    JournalWind Energy
    Volume5
    Issue number2-3
    Pages (from-to)185-197
    ISSN1095-4244
    DOIs
    Publication statusPublished - 22 Jul 2002

    Keywords

    • wind turbine aerodynamics
    • computational fluid dynamics
    • Navier–Stokes
    • turbulence modelling
    • detached-eddy simulation
    • NREL

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