Circulation control for the rotors of large horizontal axis wind turbines

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Circulation control, augmenting aerofoil lift and reducing drag using air jets is long established but little considered for wind turbine applications. This is a top-level exploration of the basic concept which involves a substantial part of the rotor blade having low solidity, elliptical sections which generate little lift and drag when passive, greatly moderating extreme storm loads when the rotor is idling. The CC rotor can then be expanded in diameter by ~ 30% within the same loading envelop of a standard rotor with gain in energy capture to compensate for added cost in the rotor systems.
Original languageEnglish
Number of pages4
Publication statusPublished - 17 Jun 2018
EventGrand Renewable Energy 2018 - Pacifico Yokohama, Yokohama, Japan
Duration: 17 Jun 201822 Jun 2018


ConferenceGrand Renewable Energy 2018
Abbreviated titleGRE 2018
Internet address


  • wind turbine blades
  • circulation control
  • rotor
  • elliptical aerofoil
  • extreme loads


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