Articles | Volume 5, issue 2
Wind Energ. Sci., 5, 577–590, 2020

Special issue: Wind Energy Science Conference 2019

Wind Energ. Sci., 5, 577–590, 2020
Research article
15 May 2020
Research article | 15 May 2020

Development of a second-order dynamic stall model

Niels Adema et al.

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Cited articles

Choudry, A., Leknys, R., Arjomandi, M., and Kelso, R.: An insight into the dynamic stall lift characteristics, J. Exp. Therm. Fluid Sci., 58, 188–208,, 2014. 
De Vaal, J. B.: Heuristic modelling of dynamic stall for wind turbines, MSc Thesis, TU Delft, Delft, the Netherlands, 2009. 
DNV GL: Loads and site conditions for wind turbines, Standard DNVGL-ST-0437, available at: (last access: 7 November 2018), 2016. 
Gonzalez, A. and Munduate, X.: Unsteady modelling of the oscillating S809 aerofoil and NREL phase VI parked blade using the Beddoes–Leishman dynamic stall model, J. Phys.: Conf. Ser., 75, 012020,, 2007. 
Hoffmann, M. J., Reuss Ramsay, R., and Gregorek, G. M.: Effects of Grit Roughness and Pitch Oscillations on the NACA 4415 Airfoil, Technical Report NREL/TP-422-7815, available at: (last access: 3 September 2018), 1996. 
Short summary
It is crucial to model dynamic stall accurately to reduce inaccuracies in predicting fatigue and extreme loads. This paper investigates a new dynamic stall model. Improvements are proposed based on experiments. The updated model shows significant improvements over the initial model; however, further validation and research are still required. This updated model might be incorporated into future wind turbine design codes and will hopefully reduce inaccuracies in predicted wind turbine loads.