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Wake Geometry Effects on Rotor Blade-Vortex Interaction Noise Directivity
Language: en
Pages: 28
Authors: National Aeronautics and Space Adm Nasa
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Type: BOOK - Published: 2018-10-18 - Publisher:

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Acoustic measurements from a model rotor wind tunnel test are presented which show that the directionality of rotor blade vortex interaction (BVI) noise is stro
Blade-vortex Interaction Noise Generation and Directionality
Language: en
Pages: 360
Authors: Wel-Chong Sim
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Type: BOOK - Published: 1996 - Publisher:

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The Directionality of Blade-vortex Interaction Noise
Language: en
Pages: 332
Authors: Todd Darwin Ringler
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Type: BOOK - Published: 1992 - Publisher:

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Advancing-Side Directivity and Retreating-Side Interactions of Model Rotor Blade-Vortex Interaction Noise
Language: en
Pages: 44
Authors: National Aeronautics and Space Administration (NASA)
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Type: BOOK - Published: 2018-06-30 - Publisher: Createspace Independent Publishing Platform

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Acoustic data are presented from a 40 percent scale model of the four-bladed BO-105 helicopter main rotor, tested in a large aerodynamic wind tunnel. Rotor blad
Rotorcraft Blade-vortex Interaction Noise Reduction Through Attitude and Flight Parameter Variations
Language: en
Pages: 466