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.
Aerodynamic noise of a two-dimensional wing with high-lift devices
Aerodynamische Schallemission einer zweidimensionalen Tragfläche mit Auftriebshilfen
1998
11 Seiten, 14 Bilder, 6 Quellen
Aufsatz (Konferenz)
Englisch
Tragfläche (Aerodynamik) , Aerodynamik , Schallemission , Auftrieb , zweidimensionale Darstellung , experimentelle Untersuchung , Versuchsmodell , Maßstab , Konfiguration , Landeklappe , Flugverhalten , Schallquelle , Druckverlauf , Versuchsanlage , Strömungsgeschwindigkeit , Druckstoß , numerisches Verfahren , Landung , Flugzeugstart
Aerodynamic Noise Reduction for High-Lift Devices on a Swept Wing Model (AIAA 2006-0212)
British Library Conference Proceedings | 2006
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