Remarks on wind turbine power absorption increase by including the axial force due to the radial pressure gradient in the general momentum theory | Zendy

Xiros M. I. | Zendy; Xiros N. I. | Zendy

Open Access

Remarks on wind turbine power absorption increase by including the axial force due to the radial pressure gradient in the general momentum theory

Author(s) -

Xiros M. I.,

Xiros N. I.

Publication year - 2006

Publication title -

wind energy

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.743

H-Index - 92

eISSN - 1099-1824

pISSN - 1095-4244

DOI - 10.1002/we.203

Subject(s) - momentum (technical analysis) , turbine , mechanics , limit (mathematics) , physics , absorption (acoustics) , power (physics) , pressure gradient , quantum electrodynamics , classical mechanics , optics , thermodynamics , mathematical analysis , mathematics , finance , economics

It is shown that the general momentum theory, in the form that it has been published previously, underestimates the axial force and the absorbed power, possibly by a large amount if the expansion of the wake is large. Consequently, the Betz limit, theoretically, can probably be exceeded by a correspondingly large amount. Copyright © 2006 John Wiley &Sons, Ltd.

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