Material matters: Controllable rubber trailing edge flap regulates load on wind turbine blades

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    In wind farms, nearby wind turbines exert considerable influence and generate turbulence on turbine blades. Because the blades are so long, there can be considerable differences in localized loading from the gusts along the blade. The Risø DTU researchers has developed a controllable rubber trailing edge flap, known as CRTEF. The trailing edge blade design is expected to help mitigate localized loading, and its molded rubber design, the sharp trailing edge, produces less noise and greater output. With CRTEF, the blade automatically has a completely sharp edge. The elastic flap tested in an open jet wind tunnel shows promising results. In the wind tunnel, it is possible to regulate the wind speed as well as turn the blade profile to simulate a change in wind direction in relation to the profile.
    Original languageEnglish
    JournalMaterials Performance
    Volume49
    Issue number4
    Pages (from-to)14-17
    ISSN0094-1492
    Publication statusPublished - 2010

    Keywords

    • Wind energy
    • Aeroelastic design methods

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