Online (PDF) Advancing Side Directivity And Retreating Side Interactions Of Model Rotor Blade Vortex Interaction Noise Download

Language: en
Pages: 44

Advancing-Side Directivity and Retreating-Side Interactions of Model Rotor Blade-Vortex Interaction Noise

Authors: National Aeronautics and Space Administration (NASA)

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Type: BOOK - Published: 2018-06-30 - Publisher: Createspace Independent Publishing Platform

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

Language: en
Pages: 28

Wake Geometry Effects on Rotor Blade-Vortex Interaction Noise Directivity

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