Active control of source sound power radiation in uniform flow
Active control of source sound power radiation in uniform flow
Many suggested applications of active noise control involve the presence of a background air flow such as in ventilation ducts, exhaust stacks and the radiation from turbofan engines. This paper is a theoretical study aimed at assessing the effect of a uniform flow on the ability of simple sources actively to control free field sound power radiation. In particular, the minimum sound power radiated by two point volume velocity sources situated in an unbounded uniform fluid which moves with a uniform steady velocity is determined. Also the maximum sound power that can be absorbed by a point volume velocity source from an incident plane wave is determined.
357-364
Joseph, P.
9c30491e-8464-4c9a-8723-2abc62bdf75d
Morfey, C. L.
d5f9a8d0-7d8a-4915-a522-bf49dee111f2
Nelson, P. A.
5c6f5cc9-ea52-4fe2-9edf-05d696b0c1a9
30 April 1998
Joseph, P.
9c30491e-8464-4c9a-8723-2abc62bdf75d
Morfey, C. L.
d5f9a8d0-7d8a-4915-a522-bf49dee111f2
Nelson, P. A.
5c6f5cc9-ea52-4fe2-9edf-05d696b0c1a9
Joseph, P., Morfey, C. L. and Nelson, P. A.
(1998)
Active control of source sound power radiation in uniform flow.
Journal of Sound and Vibration, 212 (2), .
(doi:10.1006/jsvi.1997.1461).
Abstract
Many suggested applications of active noise control involve the presence of a background air flow such as in ventilation ducts, exhaust stacks and the radiation from turbofan engines. This paper is a theoretical study aimed at assessing the effect of a uniform flow on the ability of simple sources actively to control free field sound power radiation. In particular, the minimum sound power radiated by two point volume velocity sources situated in an unbounded uniform fluid which moves with a uniform steady velocity is determined. Also the maximum sound power that can be absorbed by a point volume velocity source from an incident plane wave is determined.
This record has no associated files available for download.
More information
Published date: 30 April 1998
Additional Information:
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
Identifiers
Local EPrints ID: 468697
URI: http://eprints.soton.ac.uk/id/eprint/468697
ISSN: 0022-460X
PURE UUID: 5418da43-da9b-4edb-8009-5b04367a9692
Catalogue record
Date deposited: 23 Aug 2022 16:43
Last modified: 17 Mar 2024 02:32
Export record
Altmetrics
Contributors
Author:
C. L. Morfey
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics
