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
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
11 May 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.
15th AIAA/CEAS Aeroacoustics Conference (30th AIAA Aeroacoustics Conference), , Miami, United States.
11 - 13 May 2009.
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
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Published date: 11 May 2009
Venue - Dates:
15th AIAA/CEAS Aeroacoustics Conference (30th AIAA Aeroacoustics Conference), , Miami, United States, 2009-05-11 - 2009-05-13
Identifiers
Local EPrints ID: 71519
URI: http://eprints.soton.ac.uk/id/eprint/71519
PURE UUID: 8d31d2de-e828-4af0-bdda-368e7886025a
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Date deposited: 17 Feb 2010
Last modified: 16 Jan 2026 18:01
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Contributors
Author:
Iansteel Achunche
Author:
Andrew Kempton
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