Characterization and Comparison of Baseline Aerodynamic Performance of Optimally Twisted versus Non-Twisted HAWT Blades

    Research output: Contribution to conferencePaper

    Abstract

    NREL has completed the initial twisted blade field tests of the 'Unsteady Aerodynamics Experiment.' This test series continues systematic measurements of unsteady aerodynamic phenomena prevalent in stall-controlled horizontal axis wind turbines (HAWTs). The blade twist distribution optimizes power production at a single angle of attack along the span. Abrupt transitions into and out of stall arecreated due to rapid changes in inflow. Data from earlier experiments have been analyzed extensively to characterize the steady and unsteady response of untwisted blades. In this report, a characterization and comparison of the baseline aerodynamic performance of the twisted versus non-twisted blade sets will be presented for steady flow conditions.
    Original languageAmerican English
    PagesVol. I: 143-148
    Number of pages6
    StatePublished - 1996
    EventEnergy Week '96 - Houston, Texas
    Duration: 29 Jan 19962 Feb 1996

    Conference

    ConferenceEnergy Week '96
    CityHouston, Texas
    Period29/01/962/02/96

    NREL Publication Number

    • NREL/CP-21861

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