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2016 | OriginalPaper | Chapter

9. The Finite-Bladed Betz Rotor

Author : Jens Nørkær Sørensen

Published in: General Momentum Theory for Horizontal Axis Wind Turbines

Publisher: Springer International Publishing

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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.

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previous chapter The Tip Correction
Literature
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Metadata
Title
The Finite-Bladed Betz Rotor
Author
Jens Nørkær Sørensen
Copyright Year
2016
Book
General Momentum Theory for Horizontal Axis Wind Turbines

Print ISBN: 978-3-319-22113-7

Electronic ISBN: 978-3-319-22114-4

Copyright Year: 2016

DOI
https://doi.org/10.1007/978-3-319-22114-4_9