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A Scaled Numerical Simulation Model for Structural Analysis of Large Wind Turbine Blade

Author

Listed:
  • Guoqiang Gao

    (School of Electromechanical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China)

  • Hongsheng Shu

    (School of Electromechanical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China)

  • Zixin Yi

    (School of Electromechanical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China)

  • Shuyi Yang

    (School of Electromechanical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China)

  • Juchuan Dai

    (School of Electromechanical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China)

  • Fan Zhang

    (School of Electromechanical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China)

Abstract

Numerical simulation technology is a crucial tool for reducing costs and increasing efficiency in the wind power industry. However, with the development of large-scale wind turbines, the computational cost of numerical simulation has gradually increased. This paper uses the geometric similarity, structural similarity criterion, Reynolds similarity and boundary layer theory to establish a scaled model of the geometric three-dimensional shape, composite material, and finite element mesh of large wind turbine blades. The study analyzes the aerodynamic, gravitational, and centrifugal load variations within the scaled model. The proportional relationship between the scaled model’s operating parameters, the numerical simulation’s environmental parameters, and the mechanical response parameters is established. These parameters are coordinated to ensure the similarity of the blade structure and the fluid dynamics. For a geometric scale factor of 0.316, the relative difference in maximum deflection is 4.52%, with a reduction in calculation time by 48.1%. On the premise of ensuring the calculation accuracy of the aerodynamic and structural response of the blade, the calculation efficiency is effectively improved.

Suggested Citation

  • Guoqiang Gao & Hongsheng Shu & Zixin Yi & Shuyi Yang & Juchuan Dai & Fan Zhang, 2024. "A Scaled Numerical Simulation Model for Structural Analysis of Large Wind Turbine Blade," Energies, MDPI, vol. 17(19), pages 1-19, September.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:19:p:4849-:d:1487123
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    References listed on IDEAS

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    1. Marzec, Łukasz & Buliński, Zbigniew & Krysiński, Tomasz, 2021. "Fluid structure interaction analysis of the operating Savonius wind turbine," Renewable Energy, Elsevier, vol. 164(C), pages 272-284.
    2. Zhang, Dongqin & Liu, Zhenqing & Li, Weipeng & Hu, Gang, 2023. "LES simulation study of wind turbine aerodynamic characteristics with fluid-structure interaction analysis considering blade and tower flexibility," Energy, Elsevier, vol. 282(C).
    3. Li, Jian & Liu, Ranhui & Yuan, Peng & Pei, Yanli & Cao, Renjing & Wang, Gang, 2020. "Numerical simulation and application of noise for high-power wind turbines with double blades based on large eddy simulation model," Renewable Energy, Elsevier, vol. 146(C), pages 1682-1690.
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