Application of engineering models to predict wake deflection due to a tilted wind turbine

Srinivas Guntur, Niels Troldborg, Mac Gaunaa

    Research output: Contribution to conferencePosterResearchpeer-review

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    It is a known fact that the power produced by
    wind turbines operating inside an array decreases
    due to the wake effects of the upstream turbines.
    It has been proposed previously to use the yaw
    mechanism as a potential means to steer the upstream
    wake away from downstream turbines, however
    such a mechanism introduces control complications
    due to changing wind directions. Deflecting
    the wake in the vertical direction using tilt, on the
    other hand, overcomes this challenge. In this paper,
    the feasibility of steering wake is explored in
    a simple uniform inflow case. This is done by trying
    to model the wake deflection as a function of
    the yaw/tilt angle and the rotor thrust, initially using
    the momentum and vortex theories. Thereafter,
    a relatively more promising empirical model based
    on a set of actuator disc CFD computations is proposed.
    Finally, comments are made on the feasibility
    of wake control using yaw/tilt.
    Original languageEnglish
    Publication date2012
    Number of pages1
    Publication statusPublished - 2012
    EventEWEC 2012 - European Wind Energy Conference & Exhibition - Copenhagen, Denmark
    Duration: 16 Apr 201219 Apr 2012


    ConferenceEWEC 2012 - European Wind Energy Conference & Exhibition
    Internet address


    • Wind turbines
    • Yaw
    • Tilt
    • Wake deflection
    • EWEA 2012


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