Duct effects on acoustic source radiation
Duct effects on acoustic source radiation
This paper presents a detailed numerical investigation into the effects of a semi-infinite hard-walled duct on the radiation due to point dipole sources rotating around the duct axis. In particular, this paper is concerned with the effect of source position relative to the duct open end and its comparison with radiation in a free field. This study was motivated by the increasing tendency for ducted propellers and fans to be located close to the open end relative to the acoustic wavelength. In this study the conditions are established under which duct effects on source radiation may be neglected.
1037-1051
Baddour, Benjamin
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Joseph, Phillip
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McAlpine, Alan
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Leung, Ronnie
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Baddour, Benjamin
97085cca-8d2d-4220-8144-51fa91efe3bb
Joseph, Phillip
9c30491e-8464-4c9a-8723-2abc62bdf75d
McAlpine, Alan
aaf9e771-153d-4100-9e84-de4b14466ed7
Leung, Ronnie
9ac6df13-1781-4a52-97c9-75175c6ad971
Baddour, Benjamin, Joseph, Phillip, McAlpine, Alan and Leung, Ronnie
(2023)
Duct effects on acoustic source radiation.
AIAA Journal, 62 (3), .
(doi:10.2514/1.J063444).
Abstract
This paper presents a detailed numerical investigation into the effects of a semi-infinite hard-walled duct on the radiation due to point dipole sources rotating around the duct axis. In particular, this paper is concerned with the effect of source position relative to the duct open end and its comparison with radiation in a free field. This study was motivated by the increasing tendency for ducted propellers and fans to be located close to the open end relative to the acoustic wavelength. In this study the conditions are established under which duct effects on source radiation may be neglected.
Text
Baddour_etal_AIAA2024
- Accepted Manuscript
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e-pub ahead of print date: 28 December 2023
Identifiers
Local EPrints ID: 488976
URI: http://eprints.soton.ac.uk/id/eprint/488976
ISSN: 0001-1452
PURE UUID: 911fdffb-bc12-42d0-854c-2be4952b7ff0
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Date deposited: 10 Apr 2024 16:35
Last modified: 11 Apr 2024 01:35
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Author:
Benjamin Baddour
Author:
Ronnie Leung
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