An open rotor experiment was conducted at cruise Mach numbers and the unsteady pressure in the nearfield was measured. The system included extensive performance measurements, which can help provide insight into the noise generating mechanisms in the absence of flow measurements. A set of data acquired at a constant blade pitch angle but various rotor speeds was examined. The tone levels generated by the front and rear rotor were found to be nearly equal when the thrust was evenly balanced between rotors.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Nearfield Unsteady Pressures at Cruise Mach Numbers for a Model Scale Counter-Rotation Open Rotor


    Beteiligte:

    Kongress:

    18th AIAA/CEAS Aeroacoustics Conference (33rd AIAA Aeroacoustics Conference) ; 2012 ; Colorado Springs, CO, US



    Erscheinungsdatum :

    2012-09-01




    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch