Prof. Dr. Sandrine Aubrun
École Centrale de Nantes, France
Research in wakes has evolved dramatically the last decade and are still increasing, hence there is an increasing interest and need for a common forum.
The technical committee for wakes and wind farm aerodynamics has been established since 2021 and gather activities in this field within the EAWE community and collects experts from all around the world sharing their knowledge in this field. We coordinate existing activities and initialize new.
The committee has since more than 10 years organized the biannual Wake Conference hosted in Visby, Sweden.
The committee meet regularly on-line, while face-to-face meetings are held in connection with other planned seminars or conferences of EAWE (for example Torque or WESC conferences).
The work within the test turbine working group should consist of collect and present information about:
More info here: www.wakeconference.se
More info here: http://tweet-ie.eu/Blind_Test
Join us for the next insightful webinar on “The impact of coherent large-scale vortices generated by helix active wake control on the recovery process of wind turbine wakes.”
Helix active wake control—a technique that leverages individual blade pitch control to induce a non-uniform, rotating thrust distribution over the rotor plane—has emerged as a promising strategy to accelerate wake recovery and mitigate wake-induced power losses. Several studies have provided a well-founded overview of the key aspects of the helix. Nevertheless, the physical mechanisms that enhance the mean kinetic energy in the wake to accelerate its recovery still lack a causal explanation. Using Large Eddy Simulations (LES), we observe that helix active wake control generates large-scale coherent vortices in the wake, with distinct characteristics depending on whether the helix rotates clockwise (CW) or counterclockwise (CCW). These vortices enhance the transport of mean kinetic energy into the wake and thereby accelerate the wake recovery. Interestingly, the vortex system of the CCW helix entrains more kinetic energy into the wake, providing a causal explanation for the consistently superior performance of the CCW helix observed in prior studies.
Get to know the talented individuals behind our committee.
Prof. Dr. Jens Nørkær Sørensen
DTU, Denmark
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