Prediction of forward fan noise propagation and radiation from intakes
Prediction of forward fan noise propagation and radiation from intakes
This paper presents a prediction method for fan tone noise propagation and radiation,
and a study on the modal power distribution required to accurately model fan broadband
noise. The results from the predictions are validated against rig measurements. In the
prediction method for fan tone noise propagation and radiation, the source can be described
as multimodal at subsonic tip speeds, and composed of a multimodal content and a high
pressure amplitude rotor-locked content at supersonic tip speeds. In-duct sound pressure
level (SPL) measurements from mode detection have been used to calibrate the predictions
American Institute of Aeronautics and Astronautics
Achunche, Iansteel
c4fb7ed1-013b-44df-8582-b65813e21e5f
Astley, Jeremy
cb7fed9f-a96a-4b58-8939-6db1010f9893
Sugimoto, Rie
cb8c880d-0be0-4efe-9990-c79faa8804f0
Kempton, Andrew
08276625-e640-431b-8dd3-1598fe5ec722
2009
Achunche, Iansteel
c4fb7ed1-013b-44df-8582-b65813e21e5f
Astley, Jeremy
cb7fed9f-a96a-4b58-8939-6db1010f9893
Sugimoto, Rie
cb8c880d-0be0-4efe-9990-c79faa8804f0
Kempton, Andrew
08276625-e640-431b-8dd3-1598fe5ec722
Achunche, Iansteel, Astley, Jeremy, Sugimoto, Rie and Kempton, Andrew
(2009)
Prediction of forward fan noise propagation and radiation from intakes.
In Proceedings of the 15th AIAA/CEAS Aeroacoustics Conference (30th AIAA Aeroacoustics Conference).
American Institute of Aeronautics and Astronautics.
14 pp
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
This paper presents a prediction method for fan tone noise propagation and radiation,
and a study on the modal power distribution required to accurately model fan broadband
noise. The results from the predictions are validated against rig measurements. In the
prediction method for fan tone noise propagation and radiation, the source can be described
as multimodal at subsonic tip speeds, and composed of a multimodal content and a high
pressure amplitude rotor-locked content at supersonic tip speeds. In-duct sound pressure
level (SPL) measurements from mode detection have been used to calibrate the predictions
This record has no associated files available for download.
More information
Published date: 2009
Venue - Dates:
15th AIAA/CEAS Aeroacoustics Conference (30th AIAA Aeroacoustics Conference), Miami, USA, 2009-05-10 - 2009-05-12
Identifiers
Local EPrints ID: 71519
URI: http://eprints.soton.ac.uk/id/eprint/71519
PURE UUID: 8d31d2de-e828-4af0-bdda-368e7886025a
Catalogue record
Date deposited: 17 Feb 2010
Last modified: 14 Sep 2022 01:39
Export record
Contributors
Author:
Iansteel Achunche
Author:
Andrew Kempton
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
