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Aeroacoustic carousel

Aeroacoustic carousel
Aeroacoustic carousel
Closed-Circuit wind tunnels in which air is driven by fans are widely used for aerodynamic testing. For aeroacoustic tests, in which the radiated sound field must be measured in the presence of flow, they have two major problems: the fan makes them noisy, and the hard walls make them reverberant.
The ideal aeroacoustic test facility would be quiet and anechoic. It is difficult to satisfy these requirements in a standard wind tunnel because anechoic and noise-muffling treatments tend to increase flow resistance so that the fan has to work harder resulting in more noise. In this Note a novel alternative that will eliminate the fan and allow as much anechoic treatment as desired will be proposed.
0001-1452
435-437
Wright, M.C.M.
2ed7ef7e-9a6e-4f41-99cc-d7bea39cdb80
Wright, M.C.M.
2ed7ef7e-9a6e-4f41-99cc-d7bea39cdb80

Wright, M.C.M. (2005) Aeroacoustic carousel. AIAA Journal, 43 (2), 435-437.

Record type: Article

Abstract

Closed-Circuit wind tunnels in which air is driven by fans are widely used for aerodynamic testing. For aeroacoustic tests, in which the radiated sound field must be measured in the presence of flow, they have two major problems: the fan makes them noisy, and the hard walls make them reverberant.
The ideal aeroacoustic test facility would be quiet and anechoic. It is difficult to satisfy these requirements in a standard wind tunnel because anechoic and noise-muffling treatments tend to increase flow resistance so that the fan has to work harder resulting in more noise. In this Note a novel alternative that will eliminate the fan and allow as much anechoic treatment as desired will be proposed.

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Published date: 2005

Identifiers

Local EPrints ID: 27993
URI: http://eprints.soton.ac.uk/id/eprint/27993
ISSN: 0001-1452
PURE UUID: 1215157b-56e1-4894-93c6-ad158457445d

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Date deposited: 02 May 2006
Last modified: 08 Jan 2022 09:54

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Contributors

Author: M.C.M. Wright

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