Propeller noise in the acoustic near field is presently determined through the integration of the pressure-time history in the tangential direction of a numerically generated flowfield around a propfan of SR-3 type, including the shock wave system in the vicinity of the propeller tip. This acoustic analysis yields overall sound pressure levels, and the associated frequency spectra, as a function of observer location.


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    Title :

    Numerical evaluation of propeller noise including nonlinear effects


    Contributors:

    Published in:

    Publication date :

    1986-06-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




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