Trailing Edge Noise Prediction of Wind Turbine Airfoils: A Benchmark Exercise

O. Ferret Gasch, S. Oerlemans, B. W. Faßmann, M. Herr, F. Bertagnolio, A. Fischer, B. Arnold, T. Lutz

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


    This paper presents a trailing edge noise prediction study of two state-of-the-art wind turbine airfoils, benchmarked against dedicated aerodynamic and acoustic wind tunnel experiments. Blind predictions were carried out by three institutes with long experience in trailing edge noise simulation: the German Aerospace Centre (DLR), the Danish Technical University (DTU), and the Institute of Aerodynamics and Gas Dynamics (IAG) at the University of Stuttgart. Experimental data and engineering predictions were provided by Siemens Gamesa Renewable Energy (SGRE). While the aerodynamic predictions generally show good agreement, the acoustic results of the different codes exhibit substantial scatter, even in terms of relative sound pressure levels. This means that for industrial design decisions, where high accuracy is needed (
    Original languageEnglish
    Title of host publicationProceedings of the 25th AIAA/CEAS Aeroacoustics Conference
    PublisherAerospace Research Central (ARC)
    Publication date2019
    ISBN (Electronic)978-1-62410-588-3
    Publication statusPublished - 2019
    Event25th AIAA/CEAS Aeroacoustics Conference - Technical University of Delft, Delft, Netherlands
    Duration: 20 May 201923 May 2019
    Conference number: 25


    Conference25th AIAA/CEAS Aeroacoustics Conference
    LocationTechnical University of Delft
    Internet address


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