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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