A dynamic stall model for airfoils with deformable trailing edges

Peter Bjørn Andersen, Mac Gaunaa, Dan Christian Bak, Morten Hartvig Hansen

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    Abstract

    The present work contains an extension of the Beddoes-Leishman (B-L) type dynamic stall model, as described by Hansen et al. [7]. In this work a Deformable Trailing Edge Geometry (DTEG) has been added to the dynamic stall model. The model predicts the unsteady aerodynamic forces and moments on an airfoil section undergoing arbitrary motion in heave, lead-lag, pitch, Trailing Edge (TE) flapping. In the linear region, the model reduces to the inviscid model of Gaunaa [4], which includes the aerodynamic effect of a thin airfoil with a deformable camberline in inviscid flow. Therefore, the proposed model can be considered a crossover between the work of Gaunaa for the attached flow region and Hansen et al. The model will be compared to wind tunnel measurements from Velux described by Bak et al. [8].
    Original languageEnglish
    Article number012028
    Book seriesJournal of Physics Conference Series
    Volume75
    Number of pages10
    ISSN1742-6588
    DOIs
    Publication statusPublished - 2007
    Event2nd International Conference on "The Science of Making Torque From Wind" - Kgs. Lyngby, Denmark
    Duration: 28 Aug 200731 Aug 2007
    Conference number: 2
    http://www.twind2007.mek.dtu.dk/

    Conference

    Conference2nd International Conference on "The Science of Making Torque From Wind"
    Number2
    CountryDenmark
    CityKgs. Lyngby
    Period28/08/200731/08/2007
    Internet address

    Keywords

    • Dynamic Stall
    • Trailing edge flaps

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