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Type: Journal article
Title: Broadband trailing edge noise from a sharp-edged strut
Author: Moreau, D.
Brooks, L.
Doolan, C.
Citation: Journal of the Acoustical Society of America, 2011; 129(5):2820-2829
Publisher: Acoustical Society of America American Institiute of Physics
Issue Date: 2011
ISSN: 0001-4966
Statement of
Danielle J. Moreau, Laura A. Brooks, and Con J. Doolan
Abstract: This paper presents experimental data concerning the flow and noise generated by a sharp-edged flat plate at low-to-moderate Reynolds number (Reynolds number based on chord of 2.0 × 10(5) to 5.0 × 10(5)). The data are used to evaluate a variety of semi-empirical trailing edge noise prediction methods. All were found to under-predict noise at lower frequencies. Examination of the velocity spectra in the near wake reveals that there are energetic velocity fluctuations at low frequency about the trailing edge. A semi-empirical model of the surface pressure spectrum is derived for predicting the trailing edge noise at low-to-moderate Reynolds number.
Keywords: acoustic noise
plates (structures)
structural acoustics
Rights: © 2011 Acoustical Society of America
DOI: 10.1121/1.3569698
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Appears in Collections:Aurora harvest
Environment Institute publications
Mechanical Engineering publications

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