Noise model for serrated trailing edges compared to wind tunnel measurements

Andreas Fischer, Franck Bertagnolio, Wen Zhong Shen, Jesper Madsen

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    A new CFD RANS based method to predict the far field sound pressure emitted from an aerofoil with serrated trailing edge has been developed. The model was validated by comparison to measurements conducted in the Virginia Tech Stability Wind Tunnel. The model predicted 3 dB lower sound pressure levels, but the tendencies for the different configurations were predicted correctly. Therefore the model can be used to optimise the serration geometry. A disadvantage of the new model is that the computational costs are significantly higher than for the Amiet model for a straight trailing edge. However, it is by decades faster than LES methods.
    Original languageEnglish
    Article number022053
    Book seriesJournal of Physics: Conference Series (Online)
    Number of pages9
    Publication statusPublished - 2016
    EventThe Science of Making Torque from Wind 2016 - Technische Universität München (TUM), Munich, Germany
    Duration: 5 Oct 20167 Oct 2016
    Conference number: 6


    ConferenceThe Science of Making Torque from Wind 2016
    LocationTechnische Universität München (TUM)
    Internet address


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