Articles | Volume 5, issue 3
Wind Energ. Sci., 5, 929–944, 2020
https://doi.org/10.5194/wes-5-929-2020
Wind Energ. Sci., 5, 929–944, 2020
https://doi.org/10.5194/wes-5-929-2020

Research article 23 Jul 2020

Research article | 23 Jul 2020

Differences in damping of edgewise whirl modes operating an upwind turbine in a downwind configuration

Gesine Wanke et al.

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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
AR by Gesine Wanke on behalf of the Authors (17 Feb 2020)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (05 May 2020) by Alessandro Croce
RR by Anonymous Referee #1 (05 Jun 2020)
RR by Vasilis A. Riziotis (09 Jun 2020)
ED: Publish subject to technical corrections (18 Jun 2020) by Alessandro Croce
ED: Publish subject to technical corrections (22 Jun 2020) by Jakob Mann(Chief Editor)
AR by Gesine Wanke on behalf of the Authors (23 Jun 2020)  Author's response    Manuscript
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Short summary
Converting an upwind wind turbine into a downwind configuration is shown to come with higher edgewise loads due to lower edgewise damping. The study shows from modal displacements of a reduced-order turbine model that the interaction between the forces on the rotor, the rotor motion, and the tower torsion is the main reason for the observed damping decrease.