Wind Energy Science
Wind Energy Science
WES
Articles | Volume 8, issue 2
Articles | Volume 8, issue 2
https://doi.org/10.5194/wes-8-247-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/wes-8-247-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 8, issue 2
Brief communication
 | 
24 Feb 2023
Brief communication |  | 24 Feb 2023

Brief communication: A clarification of wake recovery mechanisms

Maarten Paul van der Laan, Mads Baungaard, and Mark Kelly

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Short summary
Understanding wind turbine wake recovery is important to mitigate energy losses in wind farms. Wake recovery is often assumed or explained to be dependent on the first-order derivative of velocity. In this work we show that wind turbine wakes recover mainly due to the second-order derivative of the velocity, which transport momentum from the freestream towards the wake center. The wake recovery mechanisms and results of a high-fidelity numerical simulation are illustrated using a simple model.
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