Investigation into the mechanisms of propeller-wing interaction noise
Investigation into the mechanisms of propeller-wing interaction noise
This paper presents the preliminary experimental investigation of the dominant noise sources from the propeller-wing configuration at hover conditions. A parametric study is performed to investigate the sensitivity of the radiated noise to the axial separation distance z and the offset separation distance d between propeller and wing. This study is performed on even and odd bladed propellers across various azimuthal and polar angles. It was observed that null interaction acoustic pressure is obtained exactly below the wing for an even number of blades while for an odd number of blades null was observed at even harmonics. Analytical predictions for Potential-field, viscous-wake and tip vortex interactions for tonal noise is used to prove this hypothesis for zero offset position in the current paper. Significant increase in the tonal and broadband noise is observed for an offset wing configuration when the wing is placed in tip vortex flow. One of the possible reasons behind this is attributed to the enhanced interaction of tip vortex-wing interactions due to interaction length on the wing.
Aerospace Research Central
Paruchuri, Chaitanya C.
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Akiwate, Deepak C.
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Palleja-Cabre, Sergi
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Karimian, Amin
8f2e1624-afff-4e07-b2cd-e780209608d7
Joseph, Phillip
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Parry, Anthony
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Paruchuri, Chaitanya C.
5c1def64-6347-4be3-ac2d-b9f6a314b81d
Akiwate, Deepak C.
b6f50d26-e59b-413e-9c66-0ee0a869813c
Palleja-Cabre, Sergi
b841a96c-05d1-4f08-a197-8693cb3a3f90
Karimian, Amin
8f2e1624-afff-4e07-b2cd-e780209608d7
Joseph, Phillip
9c30491e-8464-4c9a-8723-2abc62bdf75d
Parry, Anthony
5fde3fdc-35a1-4788-afd8-4b69863c09fb
Paruchuri, Chaitanya C., Akiwate, Deepak C., Palleja-Cabre, Sergi, Karimian, Amin, Joseph, Phillip and Parry, Anthony
(2022)
Investigation into the mechanisms of propeller-wing interaction noise.
In 28th AIAA/CEAS Aeroacoustics 2022 Conference.
Aerospace Research Central.
17 pp
.
(doi:10.2514/6.2022-2936).
Record type:
Conference or Workshop Item
(Paper)
Abstract
This paper presents the preliminary experimental investigation of the dominant noise sources from the propeller-wing configuration at hover conditions. A parametric study is performed to investigate the sensitivity of the radiated noise to the axial separation distance z and the offset separation distance d between propeller and wing. This study is performed on even and odd bladed propellers across various azimuthal and polar angles. It was observed that null interaction acoustic pressure is obtained exactly below the wing for an even number of blades while for an odd number of blades null was observed at even harmonics. Analytical predictions for Potential-field, viscous-wake and tip vortex interactions for tonal noise is used to prove this hypothesis for zero offset position in the current paper. Significant increase in the tonal and broadband noise is observed for an offset wing configuration when the wing is placed in tip vortex flow. One of the possible reasons behind this is attributed to the enhanced interaction of tip vortex-wing interactions due to interaction length on the wing.
More information
e-pub ahead of print date: 13 June 2022
Additional Information:
Funding Information: the first author would like to acknowledge the financial support of the Royal Academy of Engineering (RF\201819 \ 18 \ 194). The authors would also like to thanks Rolls-Royce for technical support.
Venue - Dates:
28th AIAA/CEAS Aeroacoustics 2022 Conference, Hilton at the Ageas Bowl, Southampton, United Kingdom, 2022-06-14 - 2022-06-17
Identifiers
Local EPrints ID: 468393
URI: http://eprints.soton.ac.uk/id/eprint/468393
PURE UUID: 6ff1c53a-bb97-4bee-a564-a6cc0d0ee288
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Date deposited: 12 Aug 2022 18:35
Last modified: 17 Mar 2024 04:10
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Contributors
Author:
Deepak C. Akiwate
Author:
Anthony Parry
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