The effect of three-dimensional, longitudinal contouring of jet engine nozzle afterbodies is investigated experimentally in a water tunnel facility. Both laminar and turbulent Reynolds numbers are tested for three different afterbody configurations. Results indicate that forced mixer lobe technology can be applied to nozzle afterbodies and decrease drag coefficient by as much as 70 %. Improved exhaust mixing is also possible through such contouring. Exhaust gas attenuation benefits of 125 % have been recorded.


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    Title :

    Lobed nozzle afterbody research


    Additional title:

    Erforschung des ungleichmaessigen Duesenhinterteils


    Contributors:

    Published in:

    AIAA-Papers ; Jul ; 1-9


    Publication date :

    1987


    Size :

    9 Seiten, 14 Bilder, 12 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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