High Reynolds investigations on the ability of the full scale e-TellTale sensor to detect flow separation on a wind turbine blade section release_wq65iba6pjhnnif7v4vshsmljy

by Antoine Soulier, Caroline Braud, Dimitri Voisin, Danbon Frédéric

Released as a post by Copernicus GmbH.

2021  

Abstract

Abstract. The complexity of the flow over a wind turbine blade makes its understanding and monitoring a challenging task, especially on operating wind turbines. The innovative e-Telltale sensor is developed for that purpose : detecting the flow separation on wind turbines blades. In this paper, high Reynolds wind tunnel tests have been performed with different configurations of full scale e-Telltale sensors and wall pressure measurements on a wind turbine blade section. A comparison between the lift curve and the e-Telltale signal was used to evaluate the ability of the sensor to detect flow separation. Results show different interesting properties of the sensor response depending on its size, position along the chord and its fitting process that could be used in real applications.
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Date   2021-05-17
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