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Effect of boundary layer suction on performance of a 2 MW wind turbine

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  • Moussavi, S. Abolfazl
  • Ghaznavi, Aidin

Abstract

Fixed geometry of wind turbine blades imposes some limitations on their operation, making them less efficient in off design conditions which is quite common in real operation. In this work, it is shown that flow separation is the main cause of efficiency drop in under rated wind speeds where the pitch regulation system is not effective. To resolve the problem, the boundary layer suction technique is proposed and studied on a MW class wind turbine. It is shown that by creating a narrow slot at the inboard section of the blade and applying different suction intensities, the power coefficient of the rotor can be improved by up to 8.1%. At the same time, the thrust coefficient variation is limited to only 3.8% which is well compensated by structural safety factors.

Suggested Citation

  • Moussavi, S. Abolfazl & Ghaznavi, Aidin, 2021. "Effect of boundary layer suction on performance of a 2 MW wind turbine," Energy, Elsevier, vol. 232(C).
    • Handle: RePEc:eee:energy:v:232:y:2021:i:c:s0360544221013207
    DOI: 10.1016/j.energy.2021.121072
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    References listed on IDEAS

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    Cited by:

    1. Wang, Longjun & Alam, Md. Mahbub & Rehman, Shafiqur & Zhou, Yu, 2022. "Effects of blowing and suction jets on the aerodynamic performance of wind turbine airfoil," Renewable Energy, Elsevier, vol. 196(C), pages 52-64.
    2. Sun, Yukun & Qian, Yaoru & Wang, Tongguang & Wang, Long & Zhu, Chengyong & Gao, Yang, 2025. "Quantitative impact of combining blowing and suction flow control on a floating offshore wind turbine aerodynamic performance under the surge motion," Renewable Energy, Elsevier, vol. 238(C).
    3. Wang, Peilin & Liu, Qingsong & Li, Chun & Miao, Weipao & Yue, Minnan & Xu, Zifei, 2022. "Investigation of the aerodynamic characteristics of horizontal axis wind turbine using an active flow control method via boundary layer suction," Renewable Energy, Elsevier, vol. 198(C), pages 1032-1048.
    4. Sun, Yukun & Qian, Yaoru & Wang, Tongguang & Wang, Long & Zhu, Chengyong & Gao, Yang, 2024. "Investigation of the wind turbine aerodynamic performance via the combining blowing and suction flow control," Energy, Elsevier, vol. 307(C).
    5. Md. Rafsan Zani & Nir Saar Maor & Dhanush Bhamitipadi Suresh & Yaqing Jin, 2024. "Turbulent Boundary Layer Control with Multi-Scale Riblet Design," Energies, MDPI, vol. 17(15), pages 1-15, August.

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