Title: Simulations of Broadband Noise of a Small UAV Propeller
Abstract: Simulations of Broadband Noise of a Small UAV Propeller Reda R. Mankbadi , Samuel O. Afari , and Vladimir V. Golubev. Embry-Riddle Aeronautical University, Daytona Beach, FL, 32114 High-fidelity simulations of the unsteady flow and radiated noise of a UAV propeller are presented herein. We aim at capturing the broad-band noise associated with both the propeller and its wake. The current results are found to be in good agreement with several data including the thrust generated, the unsteady flow structure, as well as the radiated sound spectra and directivity. We focus on understanding the physics of the turbulence-generated noise and how it propagates to the near- and the far- acoustic fields. This is analyzed by computing the dilatation field, the Lighthill-stress terms, and each term in the integrand of FWH integral solution of the far field.
Publication Year: 2020
Publication Date: 2020-01-05
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 7
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