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Numerical characterisation of noise generated by a distributed-propulsion propeller

Sharma, Sidharath; Huang, Guangyuan; Ambrose, Stephen; Jefferson-Loveday, Richard

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Authors

Sidharath Sharma

Guangyuan Huang

Richard Jefferson-Loveday



Abstract

The shift towards sustainable and eco-friendly future of aviation is further catalysed by the aggressive targets set by administrative and industrial stakeholders. It has emerged as one of the solutions with the potential to increase overall efficiency and improve noise emissions. This paper characterises the flow and acoustic field associated with a DEP propeller. A hybrid methodology using scale-resolving turbulence formulation and an acoustic analogy is used to predict aerodynamic noise generation and acoustic wave propagation to the far-field for an isolated DEP propeller. The numerical predictions are observed to be in reasonable agreement with the measured values for both aerodynamic and aero-acoustic attributes. The sensitivity of far-field acoustic spectra to the integration surface is also presented. The results are further analysed to identify dominant noise sources in the system including propeller and wake flows.

Citation

Sharma, S., Huang, G., Ambrose, S., & Jefferson-Loveday, R. (2022). Numerical characterisation of noise generated by a distributed-propulsion propeller. . https://doi.org/10.2514/6.2022-2878

Conference Name 28th AIAA/CEAS Aeroacoustics 2022 Conference
Conference Location Southampton, UK
Start Date Jun 14, 2022
End Date Jun 17, 2022
Acceptance Date May 17, 2022
Online Publication Date Jun 13, 2022
Publication Date Jun 14, 2022
Deposit Date Jun 29, 2022
Publicly Available Date Mar 29, 2024
Publisher American Institute of Aeronautics and Astronautics
Series Title AIAA/CEAS Aeroacoustics Conference
ISBN 9781624106644
DOI https://doi.org/10.2514/6.2022-2878
Public URL https://nottingham-repository.worktribe.com/output/8765869
Publisher URL https://arc.aiaa.org/doi/abs/10.2514/6.2022-2878

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