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Asymptotic and numerical solutions for shielding of noise sources by coaxial jets

Asymptotic and numerical solutions for shielding of noise sources by coaxial jets
Asymptotic and numerical solutions for shielding of noise sources by coaxial jets
We consider the problem of the shielding of noise by coaxial heated jets, for installation effect applications. Numerical and asymptotic models are derived, and the validity of these models in various parameter regimes is discussed. It is shown that cone of silence shielding can be modeled by the diffraction around a solid body. Comparisons between models and experiments are shown, and the theories are found to agree well with experiment.
Powles, C.
e6cfdd17-dc60-4117-a9d8-c3c0f3870012
Tester, B.
1bd4a793-131b-4173-93cc-3eca70b2d116
Powles, C.
e6cfdd17-dc60-4117-a9d8-c3c0f3870012
Tester, B.
1bd4a793-131b-4173-93cc-3eca70b2d116

Powles, C. and Tester, B. (2008) Asymptotic and numerical solutions for shielding of noise sources by coaxial jets. Proceedings of the 14th AIAA/CEAS Aeroacoustics Conference (29th AIAA Aeroacoustics Conference), Vancouver, Canada. 04 - 06 May 2008. 13 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

We consider the problem of the shielding of noise by coaxial heated jets, for installation effect applications. Numerical and asymptotic models are derived, and the validity of these models in various parameter regimes is discussed. It is shown that cone of silence shielding can be modeled by the diffraction around a solid body. Comparisons between models and experiments are shown, and the theories are found to agree well with experiment.

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More information

Published date: May 2008
Additional Information: Paper Number: AIAA-2008-2975
Venue - Dates: Proceedings of the 14th AIAA/CEAS Aeroacoustics Conference (29th AIAA Aeroacoustics Conference), Vancouver, Canada, 2008-05-04 - 2008-05-06

Identifiers

Local EPrints ID: 57790
URI: http://eprints.soton.ac.uk/id/eprint/57790
PURE UUID: d35b5ec8-9646-48ce-bef1-a3a5d53ed3c6

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Date deposited: 20 Aug 2008
Last modified: 11 Dec 2021 17:53

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Contributors

Author: C. Powles
Author: B. Tester

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