Articles | Volume 2, issue 1
Wind Energ. Sci., 2, 307–316, 2017
https://doi.org/10.5194/wes-2-307-2017

Special issue: The Science of Making Torque from Wind (TORQUE) 2016

Wind Energ. Sci., 2, 307–316, 2017
https://doi.org/10.5194/wes-2-307-2017

Research article 15 Jun 2017

Research article | 15 Jun 2017

Joukowsky actuator disc momentum theory

Gijs A. M. van Kuik

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Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Reconsider after major revisions (13 Mar 2017) by Carlo L. Bottasso
AR by Gijs van Kuik on behalf of the Authors (20 Mar 2017)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (20 Mar 2017) by Carlo L. Bottasso
RR by Anonymous Referee #1 (10 May 2017)
ED: Publish as is (10 May 2017) by Carlo L. Bottasso
ED: Publish as is (10 May 2017) by Joachim Peinke(Chief Editor)
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Short summary
Actuator disc theory is the basis of most rotor design methods. However, the off-design condition of a very low rotational speed Ω is still a topic for scientific discussions. A small modification in the momentum theory for Joukowsky discs with uniform circulation results in the efficiency going to 0 instead of ∞ when Ω goes to 0. For high values of Ω, the classical momentum theory is reproduced. The new theory is confirmed by a very good match with numerically obtained results.