Ability of the e-TellTale sensor to detect flow features over wind turbine blades: flow stall/reattachment dynamics - Laboratoire Interdisciplinaire des Sciences du Numérique Access content directly
Preprints, Working Papers, ... Year : 2020

Ability of the e-TellTale sensor to detect flow features over wind turbine blades: flow stall/reattachment dynamics

Abstract

Monitoring the flow features over wind turbine blades is a challenging task that has become more and more crucial. This paper is devoted to demonstrate the ability of the e-TellTale sensor to detect the flow stall/reattachment dynamics over wind turbine blades. This sensor is made of a strip with a strain gauge sensor at its base. The velocity field was acquired using TR-PIV measurements over an oscillating 2D blade section equipped with an e-TellTale sensor. PIV images were postprocessed to detect movements of the strip, which was compared to movements of flow. Results show good agreement between the measured velocity field and movements of the strip regarding the stall/reattachment dynamics.
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Dates and versions

hal-02888487 , version 1 (11-12-2020)

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Attribution - NonCommercial

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Antoine Soulier, Caroline Braud, Dimitri Voisin, Bérengère Podvin. Ability of the e-TellTale sensor to detect flow features over wind turbine blades: flow stall/reattachment dynamics. 2020. ⟨hal-02888487⟩
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