The Finite-Bladed Betz Rotor

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    Abstract

    The finite-bladed optimum Betz rotor is treated. It is first very recently that a complete description of this rotor has been derived. In the chapter, a full analytical solution to the Betz rotor problem will be given, and the results will be compared to other optimum rotor models, both with respect to performance and resulting rotor geometry. It is here shown that for tip speed ratios greater than three, all models result in the same geometry at the outer part of the rotor, whereas the inner part always is different, both with respect to plan form and with respect to twist distribution.
    Original languageEnglish
    Title of host publicationGeneral Momentum Theory for Horizontal Axis Wind Turbines
    Number of pages30
    Volume4
    PublisherSpringer
    Publication date2016
    Pages151-180
    Chapter9
    ISBN (Print)978-3-319-22113-7
    ISBN (Electronic)978-3-319-22114-4
    DOIs
    Publication statusPublished - 2016
    SeriesResearch Topics in Wind Energy
    ISSN2196-7806

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