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2021 | OriginalPaper | Chapter

Drone Propeller Noise Under Static and Steady Inflow Conditions

Authors : Con Doolan, Yendrew Yauwenas, Danielle Moreau

Published in: Flinovia—Flow Induced Noise and Vibration Issues and Aspects-III

Publisher: Springer International Publishing

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Abstract

Drone propeller noise under static and steady inflow conditions has been studied. A numerical model that couples a blade element momentum theory model with a frequency-domain acoustic model is presented. Experimental acoustic data for a 12-inch drone propeller under static and steady inflow are compared with the model. The model compares well against the experimental data for the fundamental tone and first 2–3 harmonics under steady inflow. Discrepancies at the higher harmonics are likely due to the point-loading assumption used to apply the aerodynamic loads in the acoustic model. Comparisons under static conditions are poor and this is thought to be caused by the limited nature of the aerodynamic model used. The results suggest that an accurate and versatile aerodynamics model is most important for accurate prediction of drone propeller noise over a wide range of operating conditions.

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Metadata
Title
Drone Propeller Noise Under Static and Steady Inflow Conditions
Authors
Con Doolan
Yendrew Yauwenas
Danielle Moreau
Copyright Year
2021
DOI
https://doi.org/10.1007/978-3-030-64807-7_3

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