In most current turbofan engines, the interaction between fan wakes and the outlet guide vanes in the by-pass duct or the inlet guide vanes of the core engine, is the major noise generating mechanism. To analyze and predict the sound field, a lifting surface approximation of the vanes has been widely accepted as a practical method. However, over the years, experimental validation has been only partial. Recently, a set of complete and clean experimental data on rotor/stator interaction has become available, which adds significantly to the existing material. In the present paper these data are used for a detailed comparison with results of a lifting surface method. Despite an unsteady normal velocity up to 20 percent of the main velocity, a good agreement between measured and computed vane pressures is found.


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    Title :

    Experimental validation of a lifting surface model for rotor wake - stator interaction


    Additional title:

    Experimentelle Untermauerung eines Modells mit Auftriebswelle zur Ermittlung der Wechselwirkung zwischen Rotorwiderstand und Stator


    Contributors:

    Published in:

    AIAA-Papers ; Apr ; 1-7


    Publication date :

    1988


    Size :

    7 Seiten, 11 Bilder, 12 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English