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Experimental study of fluid-structure interaction at a model wind turbine blade using optical measurement techniques

: Kröger, L.; Wester, T.T.B.; Langidis, A.; Nietiedt, S.; Göring, M.; Luhmann, T.; Peinke, J.; Hölling, M.; Gülker, G.

Volltext ()

Institute of Physics -IOP-, London:
The Science of Making Torque from Wind, TORQUE 2020 : 28 September - 2 October 2020, The Netherlands (online)
Bristol: IOP Publishing, 2020 (Journal of physics. Conference series 1618)
Art. 032025, 7 S.
International Conference "The Science of Making Torque from Wind" (TORQUE) <2020, Online>
Konferenzbeitrag, Elektronische Publikation
Fraunhofer IWES ()

Experimental studies of fluid-structure interaction on a single blade of the model wind turbine MoWiTO 1.8, which has been designed as an aerodynamically downscaled wind tunnel model of the NREL 5 MW turbine, were performed. Tailored inflow generated by means of a 2D active grid is used to induce dynamic stall through periodic angle of inflow changes. The interactions at the model wind turbine blade are investigated using two high-speed and non intrusive optical measurement techniques. The aerodynamics around the turbine blade is measured using temporal highly resolved particle image velocimetry (PIV) measurements at the suction side of the blade. Synchronized measurements with a high-speed photogrammetric system are linking the aerodynamic events to high accuracy measurements of the blade deflections.