Wind tunnel tests of a free yawing downwind wind turbine

David Robert Verelst, Torben J. Larsen, J.W. van Wingerden

    Research output: Contribution to conferencePosterResearchpeer-review

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    Abstract

    During February and April 2012 a series of wind tunnel tests were performed at the TU Delft Open Jet Facility (OJF) with a three bladed downwind wind turbine and a rotor radius of 0.8 meters. The setup includes an off the shelf three bladed hub, nacelle and generator on which relatively flexible blades are mounted. The tower support structure has free yawing capabilities provided at the tower base. A short overview on the technical details of the experiment is provided as well as a brief summary of the design process. The discussed test cases show that the turbine is stable while operating in free yawing
    conditions. Further, the effect of the tower shadow passage on the blade flapwise strain measurement is evaluated. Finally, data from the experiment is compared with preliminary simulations using DTU Wind Energy's aeroelastic simulation program HAWC2.
    Original languageEnglish
    Publication date2012
    Number of pages1
    Publication statusPublished - 2012
    EventThe science of Making Torque from Wind 2012: 4th scientific conference - Universität Oldenburg, Oldenburg, Germany
    Duration: 9 Oct 201211 Oct 2012
    http://www.forwind.de/makingtorque/Home.html

    Conference

    ConferenceThe science of Making Torque from Wind 2012
    LocationUniversität Oldenburg
    Country/TerritoryGermany
    CityOldenburg
    Period09/10/201211/10/2012
    Internet address

    Bibliographical note

    This research is partly funded by EU 7th Framework Marie Curie IAPP grant no. 230698 WINDFLOWER and NWO Veni Grant no. 11930 Reconfigurable Floating Wind Farms

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