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https://hdl.handle.net/2440/69884
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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 1520-8524 |
Statement of Responsibility: | 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 aeroacoustics plates (structures) structural acoustics |
Rights: | © 2011 Acoustical Society of America |
DOI: | 10.1121/1.3569698 |
Grant ID: | http://purl.org/au-research/grants/arc/DP1094015 |
Published version: | http://dx.doi.org/10.1121/1.3569698 |
Appears in Collections: | Aurora harvest Environment Institute publications Mechanical Engineering publications |
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