Measurements behind model wind turbines: further evidence of wake meandering

Authors

  • D. Medici,

    Corresponding author
    1. Linné Flow Centre, KTH Mechanics, Royal Institute of Technology, S-100 44 Stockholm, Sweden
    • c/o Garrad Hassan and Partners Ltd., St Vincent's Works, Silverthorne Lane, Bristol, BS20QD, England
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    • Current address: c/o Garrad Hassan and Partners Ltd., St Vincent's Works, Silverthorne Lane, Bristol, BS20QD, England

  • P. H. Alfredsson

    1. Linné Flow Centre, KTH Mechanics, Royal Institute of Technology, S-100 44 Stockholm, Sweden
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Abstract

The frequency of wind turbine wake meandering was studied using wind turbine models with one, two and three blades. The one-bladed turbine did not give rise to any meandering motion, whereas meandering was observed for both the two- and three-bladed turbines at high enough rotational speeds. It was shown that both the thrust of the turbine and the tip-speed ratio influence the meandering. Copyright © 2007 John Wiley & Sons, Ltd.

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