Articles | Volume 3, issue 2
Wind Energ. Sci., 3, 545–551, 2018
https://doi.org/10.5194/wes-3-545-2018
Wind Energ. Sci., 3, 545–551, 2018
https://doi.org/10.5194/wes-3-545-2018
Research article
22 Aug 2018
Research article | 22 Aug 2018

Dynamic inflow effects in measurements and high-fidelity computations

Georg Raimund Pirrung and Helge Aagaard Madsen

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Latest update: 28 Sep 2022
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Short summary
A wind turbine sees an overshoot in loading after a step change in pitch angle because the wake takes some time to reach a new equilibrium. The time constants of this dynamic inflow effect are expected to decrease significantly towards the blade tip. This radial dependency has not been found to the expected extent in previous analyses of force measurements from the NASA Ames Phase VI experiment. In the present article the findings from the experiment are explained based on a simple vortex model.