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Aeroacoustic characteristics of distributed electric propulsion system in forward flight

This study presents a detailed experimental investigation of the aeroacoustic characteristics of distributed electric propulsion configurations in forward flight, with a focus on the effect of the blade tip separation distance between the propeller blades. Two identical 5-bladed propellers with a diameter of D = 9” and P/D = 1 were mounted on a NACA0018 wing, such that the wake from the propellers impinged directly on the wing. The effects of the blade tip separation distance were investigated while maintaining a constant rotational speed of 8000 rotations per minute. Measurements were acquired at fine increments of wind tunnel speeds ranging from 8 m/s to 16 m/s corresponding to various advance ratios. The spectra and directivity of the far-field noise were studied in detail for both broadband and tonal components.

Complete download (zip, 69.3 MiB)

Creator(s) Mahdi Azarpeyvand, Buda Turhan, Djamel Rezgui, Hasan Kamliya Jawahar, Luke Bowen
Publication date 08 Dec 2023
Language eng
Publisher University of Bristol
Licence Non-Commercial Government Licence for public sector information
DOI 10.5523/bris.2w4fewob4o6l9226sa5n4aigjo
Citation Mahdi Azarpeyvand, Buda Turhan, Djamel Rezgui, Hasan Kamliya Jawahar, Luke Bowen (2023): Aeroacoustic characteristics of distributed electric propulsion system in forward flight. https://doi.org/10.5523/bris.2w4fewob4o6l9226sa5n4aigjo
Total size 69.3 MiB

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