Remarks on wind turbine power absorption increase by including the axial force due to the radial pressure gradient in the general momentum theory |
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| Authors: | M. I. Xiros N. I. Xiros |
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| Affiliation: | 1. School of Naval Architecture and Marine Engineering, National Technical University of Athens, Iroon Polytechniou 9, GR‐15710 Zografos, Athens, GreeceSchool of Naval Architecture and Marine Engineering, National Technical University of Athens, Iroon Polytechniou 9, GR‐15710 Zografos, Athens, Greece;2. School of Naval Architecture and Marine Engineering, National Technical University of Athens, Iroon Polytechniou 9, GR‐15710 Zografos, Athens, Greece |
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| Abstract: | 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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| Keywords: | actuator disc general momentum theory wake rotation wake expansion |
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