Blade-Wake Interaction Noise for Small Hovering Rotors, Part I: Characterization Study

What is it about?

Blade-wake interaction noise caused by perpendicular blade-vortex interactions between rotor blades was studied in this work. An optimal prediction model was identified using machine learning methodology and was used to characterize this blade-wake interaction noise subject to varying inputs related to geometric parameters and operating conditions. Three types of blade-wake interaction noise were discovered and a prediction modeling framework was established for further modeling efforts.

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