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A tip loss correction model for wind turbine aerodynamic performance prediction

Author

Listed:
  • Zhong, W.
  • Shen, W.Z.
  • Wang, T.
  • Li, Y.

Abstract

The tip loss is an important phenomenon in wind turbine aerodynamics and has to be modelled separately in the blade element momentum (BEM) method for predicting the wind turbine aerodynamic performance. Instead of following the conventional trend of thought, the present study for the first time regards the interference factors as a summation of two parts. One is determined by the downwash due to the three-dimensional effect and the other is determined by rotation. Two corresponding factors of FS and FR are proposed to represent the effects of the two parts, respectively. This way of consideration implies a new model for the BEM method, providing appropriate tip loss predictions. The new model is validated in BEM computations of the NREL Phase Ⅵ rotor, the Swedish WG 500 rotor, and the NREL 5 MW reference rotor, with a radius of 2.675 m, 5.029 m and 63 m, respectively. It shows a good accuracy in a wide range of tip speed ratios from 1.58 to 11.3, and presents a good robustness in the cases involving high angles of attack and in the cases involving high axial interference factors. That makes the new model attractive for tip loss correction in BEM.

Suggested Citation

  • Zhong, W. & Shen, W.Z. & Wang, T. & Li, Y., 2020. "A tip loss correction model for wind turbine aerodynamic performance prediction," Renewable Energy, Elsevier, vol. 147(P1), pages 223-238.
    • Handle: RePEc:eee:renene:v:147:y:2020:i:p1:p:223-238
    DOI: 10.1016/j.renene.2019.08.125
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    Citations

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    Cited by:

    1. Boatto, Umberto & Bonnet, Paul A. & Avallone, Francesco & Ragni, Daniele, 2023. "Assessment of Blade Element Momentum Theory-based engineering models for wind turbine rotors under uniform steady inflow," Renewable Energy, Elsevier, vol. 214(C), pages 307-317.
    2. Wei Zhong & Wen Zhong Shen & Tong Guang Wang & Wei Jun Zhu, 2019. "A New Method of Determination of the Angle of Attack on Rotating Wind Turbine Blades," Energies, MDPI, vol. 12(20), pages 1-19, October.
    3. Zhong, Junwei & Li, Jingyin, 2020. "Aerodynamic performance prediction of NREL phase VI blade adopting biplane airfoil," Energy, Elsevier, vol. 206(C).

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