Horizontal Axis Wind Turbine Post Stall Airfoil Characteristics Synthesization

    Research output: Contribution to conferencePaper


    Blade-element/momentum performance prediction codes are routinely used for wind turbine design and analysis. A weakness of these codes is their inability to consistently predict peak power upon which the machine structural design and cost are strongly dependent. The purpose of this study was to compare post-stall airfoil characteristics synthesization theory to a systematically acquired windtunnel data set in which the effects of aspect ratio, airfoil thickness, and Reynolds number were investigated. The results of this comparison identified discrepancies between current theory and the wind tunnel data which could not be resolved. Other factors not previously investigated may account for these discrepancies and have a significant effect on peak power prediction.
    Original languageAmerican English
    Number of pages7
    StatePublished - 1991
    EventFirst DOE/NASA Wind Turbine Technology Workshop - Cleveland, Ohio
    Duration: 1 May 19841 May 1984


    ConferenceFirst DOE/NASA Wind Turbine Technology Workshop
    CityCleveland, Ohio

    Bibliographical note

    First presented at the DOE/NASA Wind Turbine Technology Workshop, Cleveland, Ohio, May 1984, proceedings unpublished; work performed by Rockwell International Wind Energy Research Center, Golden, Colorado, and Texas A&M University, College Station, Texas

    NREL Publication Number

    • NREL/TP-257-4400


    • blades
    • peak power
    • wind turbines


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