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Evaluating dynamic stall models for thick wind turbine airfoils

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  • Doosttalab, Mehdi
  • Ferreira, Carlos Simão
  • Ragni, Daniele
  • Yu, Wei
  • Rautmann, Christof

Abstract

The accuracy of the Beddoes–Leishman and Risø dynamic stall models is evaluated against experiments on thick wind turbine airfoils with a relative thickness of 35% and trailing edge thicknesses of 10% and 2%, both with and without vortex generators. The dynamic lift, drag, and pitching moment coefficients simulation results are compared with the measurements, obtained in the TU Delft LTT wind tunnel at a Reynolds number of Re=1×106 and dynamic reduced frequency of 0.064. The study revealed that while the aforementioned models successfully predicted the direction of the dynamic cycles, they inaccurately captured the dynamic stall behavior of thick flatback and non-flatback airfoils in all configurations, particularly in separated flows. There was no significant difference observed in the performance of the two models. The reasons for modeling failure are thoroughly examined from both fundamental and mathematical perspectives, and suggestions for improvements are provided. The findings raise concerns regarding the accuracy and reliability of the dynamic load assessment and aeroelasticity analysis for modern large wind turbines, using current dynamic stall models and underscore the necessity for enhancing the existing models.

Suggested Citation

  • Doosttalab, Mehdi & Ferreira, Carlos Simão & Ragni, Daniele & Yu, Wei & Rautmann, Christof, 2026. "Evaluating dynamic stall models for thick wind turbine airfoils," Renewable Energy, Elsevier, vol. 260(C).
    • Handle: RePEc:eee:renene:v:260:y:2026:i:c:s0960148125027600
    DOI: 10.1016/j.renene.2025.125096
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    References listed on IDEAS

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    1. Liu, Xiong & Liang, Shi & Li, Gangqiang & Godbole, Ajit & Lu, Cheng, 2020. "An improved dynamic stall model and its effect on wind turbine fatigue load prediction," Renewable Energy, Elsevier, vol. 156(C), pages 117-130.
    2. Ge, Mingwei & Sun, Haitao & Meng, Hang & Li, Xintao, 2024. "An improved B-L model for dynamic stall prediction of rough-surface airfoils," Renewable Energy, Elsevier, vol. 226(C).
    3. Moon, Hyeongi & Jeong, Junhee & Park, Sunho & Ha, Kwangtae & Jeong, Jae-Ho, 2023. "Numerical and experimental validation of vortex generator effect on power performance improvement in MW-class wind turbine blade," Renewable Energy, Elsevier, vol. 212(C), pages 443-454.
    4. Wang, Lin & Liu, Xiongwei & Kolios, Athanasios, 2016. "State of the art in the aeroelasticity of wind turbine blades: Aeroelastic modelling," Renewable and Sustainable Energy Reviews, Elsevier, vol. 64(C), pages 195-210.
    5. Choudhry, Amanullah & Arjomandi, Maziar & Kelso, Richard, 2016. "Methods to control dynamic stall for wind turbine applications," Renewable Energy, Elsevier, vol. 86(C), pages 26-37.
    6. Huang, Bin & Wang, Pengzhong & Wang, Lu & Cao, Tingfa & Wu, Dazhuan & Wu, Peng, 2021. "A combined method of CFD simulation and modified Beddoes-Leishman model to predict the dynamic stall characterizations of S809 airfoil," Renewable Energy, Elsevier, vol. 179(C), pages 1636-1649.
    7. Doosttalab, Mehdi & Ferreira, Carlos Simao & Ragni, Daniele & Yu, Wei & Rautmann, Christof, 2025. "Vortex generator effects on dynamic stall of thick airfoils," Renewable Energy, Elsevier, vol. 255(C).
    8. De Tavernier, D. & Ferreira, C. & Viré, A. & LeBlanc, B. & Bernardy, S., 2021. "Controlling dynamic stall using vortex generators on a wind turbine airfoil," Renewable Energy, Elsevier, vol. 172(C), pages 1194-1211.
    9. Melani, P.F. & Aryan, N. & Greco, L. & Bianchini, A., 2024. "The Beddoes-Leishman dynamic stall model: Critical aspects in implementation and calibration," Renewable and Sustainable Energy Reviews, Elsevier, vol. 202(C).
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