This paper concerns the experimental characterization of the aerodynamic noise of a two-dimensional 1/11 scale wing, supplied with a leading-edge slat and a trailing-edge flap. Three configurations are depicted, takeoff, cruise and landing. The experimental results are analyzed for the noisiest configuration, that is landing. Two noise sources, localized in the slat-wing slot and the wing-flap slot, are displayed. Sound is preferentially radiated from the wing pressure side. Moreover radiation from the wing-flap slot and from the flap trailing-edge are shown to interfer in far field. In parallel to the experimental study, an attempt is made to represent the wing-flap noise radiation with the help of existing analytical theories.


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    Title :

    Aerodynamic noise of a two-dimensional wing with high-lift devices


    Additional title:

    Aerodynamische Schallemission einer zweidimensionalen Tragfläche mit Auftriebshilfen


    Contributors:
    Perennes, S. (author) / Roger, M. (author)


    Publication date :

    1998


    Size :

    11 Seiten, 14 Bilder, 6 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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