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.
Transonic blade-vortex interactions - Noise reduction
Journal of Aircraft ; 30 , 3
1993-06-01
Miscellaneous
No indication
English
Transonic Blade-Vortex Interactions: Noise Reduction
Online Contents | 1993
|Transonic Blade-Vortex Interactions: Noise Reduction
AIAA | 1993
|Far field noise of transonic Blade-Vortex Interactions
Tema Archive | 1989
|Study of noise mechanisms of transonic blade-vortex interactions
Tema Archive | 1991
|Acoustics of transonic blade-vortex interactions
AIAA | 1988
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