Broadband slat noise attenuation potential with acoustic liner treatment
Broadband slat noise attenuation potential with acoustic liner treatment
The acoustic field produced by broadband noise sources on the slat of a high lift wing model is predicted using a hybrid method based on a LES (large eddy simulation) of the compressible flow for the noise generation and APE (acoustic perturbation equations) calculation for the acoustic propagation. The potential for noise control using acoustic liners within the slat gap region of the high-lift wing is investigated by solving the APE with a broadband time domain impedance boundary condition. Results show that attenuation of the broadband noise is obtained with the acoustic liner treatment in the slat gap.
Ma, Z.
abdbc8a5-60a7-4a4c-b7b6-68ce39028aaf
Zhang, X.
3056a795-80f7-4bbd-9c75-ecbc93085421
Smith, M.
d9779343-0788-4c57-b6b9-8109bddb3504
6 May 2008
Ma, Z.
abdbc8a5-60a7-4a4c-b7b6-68ce39028aaf
Zhang, X.
3056a795-80f7-4bbd-9c75-ecbc93085421
Smith, M.
d9779343-0788-4c57-b6b9-8109bddb3504
Ma, Z., Zhang, X. and Smith, M.
(2008)
Broadband slat noise attenuation potential with acoustic liner treatment.
14th AIAA/CEAS Aeroacoustics Conference, Vancouver, Canada.
05 - 07 May 2008.
17 pp
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
The acoustic field produced by broadband noise sources on the slat of a high lift wing model is predicted using a hybrid method based on a LES (large eddy simulation) of the compressible flow for the noise generation and APE (acoustic perturbation equations) calculation for the acoustic propagation. The potential for noise control using acoustic liners within the slat gap region of the high-lift wing is investigated by solving the APE with a broadband time domain impedance boundary condition. Results show that attenuation of the broadband noise is obtained with the acoustic liner treatment in the slat gap.
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aiaa-2008-2964.ppt
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Published date: 6 May 2008
Venue - Dates:
14th AIAA/CEAS Aeroacoustics Conference, Vancouver, Canada, 2008-05-05 - 2008-05-07
Organisations:
Aerodynamics & Flight Mechanics
Identifiers
Local EPrints ID: 64090
URI: http://eprints.soton.ac.uk/id/eprint/64090
PURE UUID: d06b07fe-5a8d-494d-a6ac-9fcfdec3f289
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Date deposited: 01 Dec 2008
Last modified: 15 Mar 2024 11:46
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Contributors
Author:
Z. Ma
Author:
X. Zhang
Author:
M. Smith
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