Effect of Leading Edge serrations in reducing aerofoil noise near stall conditions
Effect of Leading Edge serrations in reducing aerofoil noise near stall conditions
This paper aims at evaluating the possibility of reducing the noise generated by the separated flow over an aerofoil, due to conditions near to or of stall, by the introduction of serrations on its leading edge. First of all the onset of the separation on the aerofoil surface and the associated noise have been investigated. Different serration geometries as regards wavelength and height are considered, in order to identify the configuration which performs the best in terms of noise.
American Institute of Aeronautics and Astronautics
Lacagnina, Giovanni
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Paruchuri, Chaitanya
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Berk, Tim
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Joseph, Phillip
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Hasheminejad, Seyed Mohammad
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Stalnov, Oksana
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Chong, Tze Pei
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Ganapathisubramani, Bharathram
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25 June 2018
Lacagnina, Giovanni
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Paruchuri, Chaitanya
5c1def64-6347-4be3-ac2d-b9f6a314b81d
Berk, Tim
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Joseph, Phillip
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Hasheminejad, Seyed Mohammad
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Stalnov, Oksana
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Chong, Tze Pei
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Ganapathisubramani, Bharathram
5e69099f-2f39-4fdd-8a85-3ac906827052
Lacagnina, Giovanni, Paruchuri, Chaitanya, Berk, Tim, Joseph, Phillip, Hasheminejad, Seyed Mohammad, Stalnov, Oksana, Chong, Tze Pei and Ganapathisubramani, Bharathram
(2018)
Effect of Leading Edge serrations in reducing aerofoil noise near stall conditions.
In 24th AIAA/CEAS Aeroacoustics Conference.
American Institute of Aeronautics and Astronautics..
(doi:10.2514/6.2018-3285).
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Conference or Workshop Item
(Paper)
Abstract
This paper aims at evaluating the possibility of reducing the noise generated by the separated flow over an aerofoil, due to conditions near to or of stall, by the introduction of serrations on its leading edge. First of all the onset of the separation on the aerofoil surface and the associated noise have been investigated. Different serration geometries as regards wavelength and height are considered, in order to identify the configuration which performs the best in terms of noise.
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e-pub ahead of print date: 24 June 2018
Published date: 25 June 2018
Venue - Dates:
24th AIAA/CEAS Aeroacoustics Conference, , Atlanta, United States, 2018-06-25 - 2018-06-29
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Local EPrints ID: 422194
URI: http://eprints.soton.ac.uk/id/eprint/422194
PURE UUID: d1f34d89-c2e5-4d89-a790-8609e9b04d70
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Date deposited: 18 Jul 2018 16:31
Last modified: 16 Mar 2024 04:05
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Author:
Giovanni Lacagnina
Author:
Tim Berk
Author:
Seyed Mohammad Hasheminejad
Author:
Oksana Stalnov
Author:
Tze Pei Chong
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