Experimental results are presented for static acoustic tests of a 1/12 scale model over-the-wing target type thrust reverser. The model configuration simulates a design that is applicable to the over-the-wing short-haul advanced technology engine. Aerodynamic screening tests of a variety of reverser designs identified configurations that satisfied a reverse thrust requirement of 35 percent of forward thrust at a nozzle pressure ratio of 1.29. The variations in the reverser configuration included, blocker door angle, blocker door lip angle and shape, and side skirt shape. Acoustic data are presented and compared for the various configurations. The model data scaled to a single full size engine show that peak free field perceived noise levels at a 152.4 meter sideline distance range from 98 to 104 PNdB.(Kursetz)


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    Title :

    Over-the-wing model thrust reverser noise tests


    Additional title:

    Modellversuche zur Gerauschentwicklung bei Anwendung von Umkehrschubduesen in der Tragflachenumstroemung


    Contributors:

    Published in:

    Publication date :

    1977


    Size :

    19 Seiten, 13 Bilder, 10 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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