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DC Field | Value | Language |
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dc.contributor.author | Muhammad, C | - |
dc.contributor.author | Chong, TP | - |
dc.date.accessioned | 2024-03-07T17:33:31Z | - |
dc.date.available | 2024-03-07T17:33:31Z | - |
dc.date.issued | 2023-06-12 | - |
dc.identifier | ORCiD: Tze Pei Chong https://orcid.org/0000-0002-5272-3943 | - |
dc.identifier | AIAA 2023-3336 | - |
dc.identifier.citation | Muhammad, C. and Chong, T.P. (2023) 'Perturbation of Turbulent Boundary Layer by Outer Layer and Inner Layer Devices for Turbulent Noise Source Reduction', AIAA AVIATION 2023 Forum, San Diego, CA and Online, 12-16 June, AIAA 2023-3336, pp. 1 - 15. doi: 10.2514/6.2023-3336. | en_US |
dc.identifier.isbn | 978-1-62410-704-7 | - |
dc.identifier.uri | https://bura.brunel.ac.uk/handle/2438/28487 | - |
dc.description | Session: Acoustic / Fluid Dynamics Interactions I | en_US |
dc.description | View Video Presentation: https://doi.org/10.2514/6.2023-3336.vid | - |
dc.description.abstract | An application of the Large Eddy BreakUp (LEBU) as a source-targeting device to mitigate the wall pressure fluctuations and lateral coherence length scale of a turbulent boundary layer is investigated. Both represent the prominent noise sources for the trailing edge noise radiation. When a LEBU is placed strategically at the outer part of a turbulent boundary layer, the wall pressure spectra can establish a self-similar behaviour against s′, which is a normalised separation distance between the LEBU’s trailing edge and the targeted location for noise mitigation. It is found that s′ has to be greater than 3 in order to achieve an overall reduction in the wall pressure fluctuations. However, this criterion does not apply to the lateral coherence length. The combined effect would reduce the effectiveness of the LEBU to abate the frequency-integrated, overall noise radiation. Under the principle of non-interference, a joint-implementation of RIblets and LEBU (RIBU) can produce promising results where reduction of the frequency-integrated, overall noise radiation can be achieved, again at s′ > 3. | en_US |
dc.description.sponsorship | PhD studentship sponsored by the Thomas Gerald Gray Charitable Trust in the United Kingdom. | en_US |
dc.format.extent | 1 - 15 | - |
dc.format.medium | Electronic | - |
dc.language.iso | en_US | en_US |
dc.publisher | American Institute of Aeronautics and Astronautics | en_US |
dc.relation.uri | https://doi.org/10.2514/6.2023-3336.vid | - |
dc.rights | This is the accepted manuscript version of a conference paper which has been published in final form online 8 June 2023 on AIAA Electronic Library at https://doi.org/10.2514/1.J060716, Copyright © 2023 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved. Author accepted manuscript self-archived with permission of the AIAA per https://www.aiaa.org/publications/Open-Access. All requests for copying and permission to reprint should be submitted to CCC at https://www.copyright.com; employ the ISBN 978-1-62410-704-7 to initiate your request. See also AIAA Rights and Permissions https://www.aiaa.org/randp. | - |
dc.rights.uri | https://www.aiaa.org/publications/Open-Access | - |
dc.source | AIAA AVIATION 2023 Forum | - |
dc.source | AIAA AVIATION 2023 Forum | - |
dc.title | Perturbation of Turbulent Boundary Layer by Outer Layer and Inner Layer Devices for Turbulent Noise Source Reduction | en_US |
dc.type | Conference Paper | en_US |
dc.identifier.doi | https://doi.org/10.2514/6.2023-3336 | - |
dc.relation.isPartOf | AIAA AVIATION 2023 Forum | - |
pubs.publication-status | Published | - |
dc.rights.holder | American Institute of Aeronautics and Astronautics, Inc. | - |
Appears in Collections: | Dept of Mechanical and Aerospace Engineering Research Papers |
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File | Description | Size | Format | |
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FullText.pdf | This is the accepted manuscript version of a conference paper which has been published in final form online 8 June 2023 on AIAA Electronic Library at https://doi.org/10.2514/1.J060716, Copyright © 2023 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved. Author accepted manuscript self-archived with permission of the AIAA per https://www.aiaa.org/publications/Open-Access. All requests for copying and permission to reprint should be submitted to CCC at https://www.copyright.com; employ the ISBN 978-1-62410-704-7 to initiate your request. See also AIAA Rights and Permissions https://www.aiaa.org/randp. | 8.58 MB | Adobe PDF | View/Open |
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