Articles | Volume 7, issue 2
https://doi.org/10.5194/wes-7-647-2022
https://doi.org/10.5194/wes-7-647-2022
Research article
 | 
23 Mar 2022
Research article |  | 23 Mar 2022

High-Reynolds-number wind turbine blade equipped with root spoilers – Part 1: Unsteady aerodynamic analysis using URANS simulations

Thomas Potentier, Emmanuel Guilmineau, Arthur Finez, Colin Le Bourdat, and Caroline Braud

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Cited articles

Alber, J., Soto-Valle, R., Manolesos, M., Bartholomay, S., Nayeri, C. N., Schönlau, M., Menzel, C., Paschereit, C. O., Twele, J., and Fortmann, J.: Aerodynamic effects of Gurney flaps on the rotor blades of a research wind turbine, Wind Energ. Sci., 5, 1645–1662, https://doi.org/10.5194/wes-5-1645-2020, 2020. a
Bach, A. B.: Gurney flaps and micro-tabs for load control on wind turbines, PhD thesis, Technischen Universität Berlin, Berlin, https://doi.org/10.14279/depositonce-5127, 2016. a
Boeije, C., de Vries, H., Cleine, I., van Emden, E., Zwart, G., Stobbe, H., Hirschberg, A., and Hoeijmakers, H.: Fluidic load control for wind turbines blades, in: Proceedings of the 47th AIAA Aerospace Sciences Meeting, 5–8 January, 2009, Orlando, Florida, USA, edited by: Hand, M., AIAA – American Institute of Aeronautics and Astronautics Inc., 1–8, https://doi.org/10.2514/6.2009-684, 2009. a
Cathalifaud, P., Godard, G., Braud, C., and Stanislas, M.: The flow structure behind vortex generators embedded in a decelerating turbulent boundary layer, J. Turbulence, 10, N42, https://doi.org/10.1080/14685240903273881, 2009. a
Cole, J. A., Vieira, B. A. O., Coder, J. G., Premi, A., and Maughmer, M. D.: Experimental Investigation into the Effect of Gurney Flaps on Various Airfoils, J. Aircraft, 50, 1287–1294, https://doi.org/10.2514/1.C032203, 2013. a
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Short summary
The spoiler is found to efficiently rearrange the mean flow seen by thick aerofoil: adding lift throughout the positive angles of attack, the drawback is a high drag penalty coupled with high unsteadiness of the aerodynamic forces. The impact of this type of excitation will be quantified further in terms of energy production and fatigue in future work.
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