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Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/74308

Type: Journal article
Title: Aeroacoustic effects of a cylinder-plate configuration
Author: Winkler, M.
Becker, K.
Doolan, C.
Kameier, F.
Paschereit, C.
Citation: AIAA Journal, 2012; 50(7):1614-1620
Publisher: Amer Inst Aeronaut Astronaut
Issue Date: 2012
ISSN: 0001-1452
Statement of
Responsibility: 
Michael Winkler, Klaus Becker, Con Doolan, Frank Kameier and Christian Oliver Paschereit
Abstract: Aerodynamically generated noise can be amplified enormously by the insertion of a plate behind a cylinder. In this work, the aeroacoustic sound generation of a cyliner-plate configuration placed in a steady flow has be investigated experimentally. The amplification of the generated sound is quantified, and the condition for the amplification is analyzed in detail. In the experiments, the distance between cylinder and plate as well as the flow velocity were varied. A critical spacing that depends on the Reynolds number was found, for which the sound pressure levels rise dramatically. The variation of the distance and the flow velocity also showed a hysteresis effect regarding the occurance of the sound-pressure amplification.
Rights: © 2012 AIAA
RMID: 0020120750
DOI: 10.2514/1.J051578
Appears in Collections:Mechanical Engineering publications
Environment Institute publications
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