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Structural Feasibility of a Wind Turbine Blade Inspired by an Owl Airfoil

Author

Listed:
  • Dean Sesalim

    (Department of Mechanical and Product Design Engineering, Swinburne University of Technology, Hawthorn, VIC 3122, Australia)

  • Jamal Naser

    (Department of Mechanical and Product Design Engineering, Swinburne University of Technology, Hawthorn, VIC 3122, Australia)

Abstract

Geometrical solutions for aerodynamic limitations comprise a major development towards improving the wind energy capture efficiency and aerodynamic performance of wind turbines. However, the implementation of some mechanisms such as considerably thin airfoils have been a hurdle due to the available manufacturing methods and cost effectiveness. Moreover, the analysis has been mostly focused on analyzing and optimizing the aerodynamic aspect of wind turbines, independently of the structural performance necessary to support the optimized aerodynamic performance. Therefore, this paper analyzes the fluid–structure interaction (FSI) of a wind turbine with a relatively thin airfoil section using computational fluid dynamics (CFD) and finite element analysis (FEA) to evaluate the total displacement as well as the stresses acting on the blade as the results of the aerodynamic pressure distribution. Using the structural design, geometrical scales, and material properties of baseline model, the structural performance reflected by the thin airfoil design is isolated. Not only did the thin airfoil reduce the volume of the material and, therefore, the weight of the modified blade, but it was also able to provide high rigidity, which is necessary to support better aerodynamic performance. This was found to be influenced by the structural shape of the turbine blade, resulting in a maximum total deformation of less than 5.9 × 10 −7 m, which is very negligible in comparison to the scale of the turbine blade in this analysis.

Suggested Citation

  • Dean Sesalim & Jamal Naser, 2025. "Structural Feasibility of a Wind Turbine Blade Inspired by an Owl Airfoil," Energies, MDPI, vol. 18(5), pages 1-14, March.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:5:p:1288-:d:1606487
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    References listed on IDEAS

    as
    1. MacPhee, David W. & Beyene, Asfaw, 2015. "Experimental and Fluid Structure Interaction analysis of a morphing wind turbine rotor," Energy, Elsevier, vol. 90(P1), pages 1055-1065.
    2. Lee, Kyoungsoo & Huque, Ziaul & Kommalapati, Raghava & Han, Sang-Eul, 2017. "Fluid-structure interaction analysis of NREL phase VI wind turbine: Aerodynamic force evaluation and structural analysis using FSI analysis," Renewable Energy, Elsevier, vol. 113(C), pages 512-531.
    3. Santo, G. & Peeters, M. & Van Paepegem, W. & Degroote, J., 2019. "Dynamic load and stress analysis of a large horizontal axis wind turbine using full scale fluid-structure interaction simulation," Renewable Energy, Elsevier, vol. 140(C), pages 212-226.
    4. Dean Sesalim & Jamal Naser, 2024. "Effects of an Owl Airfoil on the Aeroacoustics of a Small Wind Turbine," Energies, MDPI, vol. 17(10), pages 1-16, May.
    5. Dean Sesalim & Jamal Naser, 2024. "The Effects of a Seagull Airfoil on the Aerodynamic Performance of a Small Wind Turbine," Energies, MDPI, vol. 17(11), pages 1-17, June.
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