Several ideas for the reduction of transonic blade-vortex interaction (BVI) noise are proposed and tested. Noise due to transonic BVI is analyzed using a finite difference code; the numerically calculated 2D near-field aerodynamic results are extended to 3D linear acoustic far field using the Kirchhoff method. It is shown that the noise can be significantly reduced by splitting the vortex in two. BVI noise is also substantially reduced by reducing the vortex strength and by increasing the angle of attack.


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    Titel :

    Transonic blade-vortex interactions - Noise reduction


    Beteiligte:
    Xue, Y. (Autor:in) / Lyrintzis, A. S. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    01.06.1993



    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :



    Transonic Blade-Vortex Interactions: Noise Reduction

    Y. Xue / A. S. Lyrintzis | AIAA | 1993


    Transonic blade-vortex interactions

    Lyrintzis, Anastasios Sotirios | TIBKAT | 1988


    Far field noise of transonic Blade-Vortex Interactions

    Lyrintzis, A.S. / George, A.R. | Tema Archiv | 1989


    Study of noise mechanisms of transonic blade-vortex interactions

    Lyrintzis, A.S. / Xue, Y. | Tema Archiv | 1991