Horizontal axis wind turbines remain the dominant technology for extraction of wind power and this is expected to persist into the future as net-zero deadlines approach. Therefore, the continual improvement of their efficiency is imperative, for which a comprehensive understanding of their aerodynamics is necessary. This study presents wall-modelled large-eddy simulation of a 2.5D HAWT blade section model. At zero angle of attack, computed wall shear stress, surface pressure, and lift and drag statistics compare excellently with existing experimental data. The method is later applied to a near stall case and discussion is made on its application to future work. This study forms part of a wider project to investigate the potential for noise reduction geometry on wind turbine blades.

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Wall-Modelled Large-Eddy Simulation of a Horizontal Axis Wind Turbine Blade Section

  • Lucy Mackie,
  • Hao Xia,
  • Rob Watson

摘要

Horizontal axis wind turbines remain the dominant technology for extraction of wind power and this is expected to persist into the future as net-zero deadlines approach. Therefore, the continual improvement of their efficiency is imperative, for which a comprehensive understanding of their aerodynamics is necessary. This study presents wall-modelled large-eddy simulation of a 2.5D HAWT blade section model. At zero angle of attack, computed wall shear stress, surface pressure, and lift and drag statistics compare excellently with existing experimental data. The method is later applied to a near stall case and discussion is made on its application to future work. This study forms part of a wider project to investigate the potential for noise reduction geometry on wind turbine blades.