Wind noise spectra in small Reynolds number turbulent flows

Zhao, S; Cheng, E; Qiu, X; Burnett, I; Liu, JCC

Wind noise spectra in small Reynolds number turbulent flows

Zhao, S

Cheng, E

Qiu, X

Burnett, I

Liu, JCC

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Publication Type:: Journal Article
Citation:: Journal of the Acoustical Society of America, 2017, 142 (5), pp. 3227 - 3233
Issue Date:: 2017-11-01

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Field	Value	Language
dc.contributor.author	Zhao, S https://orcid.org/0000-0002-6261-8864	en_US
dc.contributor.author	Cheng, E https://orcid.org/0000-0003-1632-8062	en_US
dc.contributor.author	Qiu, X https://orcid.org/0000-0002-5181-1220	en_US
dc.contributor.author	Burnett, I https://orcid.org/0000-0003-3795-7722	en_US
dc.contributor.author	Liu, JCC	en_US
dc.date.issued	2017-11-01	en_US
dc.identifier.citation	Journal of the Acoustical Society of America, 2017, 142 (5), pp. 3227 - 3233	en_US
dc.identifier.issn	0001-4966	en_US
dc.identifier.uri	http://hdl.handle.net/10453/126019
dc.description.abstract	© 2017 Acoustical Society of America. Wind noise spectra caused by wind from fans in indoor environments have been found to be different from those measured in outdoor atmospheric conditions. Although many models have been developed to predict outdoor wind noise spectra under the assumption of large Reynolds number [Zhao, Cheng, Qiu, Burnett, and Liu (2016). J. Acoust. Soc. Am. 140, 4178-4182, and the references therein], they cannot be applied directly to the indoor situations because the Reynolds number of wind from fans in indoor environments is usually much smaller than that experienced in atmospheric turbulence. This paper proposes a pressure structure function model that combines the energy-containing and dissipation ranges so that the pressure spectrum for small Reynolds number turbulent flows can be calculated. The proposed pressure structure function model is validated with the experimental results in the literature, and then the obtained pressure spectrum is verified with the numerical simulation and experiment results. It is demonstrated that the pressure spectrum obtained from the proposed pressure structure function model can be utilized to estimate wind noise spectra caused by turbulent flows with small Reynolds numbers.	en_US
dc.relation	http://purl.org/au-research/grants/arc/LP140100740
dc.relation.ispartof	Journal of the Acoustical Society of America	en_US
dc.relation.isbasedon	10.1121/1.5012740	en_US
dc.rights	info:eu-repo/semantics/openAccess
dc.subject.classification	Acoustics	en_US
dc.title	Wind noise spectra in small Reynolds number turbulent flows	en_US
dc.type	Journal Article
utslib.citation.volume	5	en_US
utslib.citation.volume	142	en_US
utslib.for	0203 Classical Physics	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Professional Practice and Leadership
utslib.copyright.status	open_access	*
pubs.issue	5	en_US
pubs.publication-status	Published	en_US
pubs.volume	142	en_US

Abstract:

© 2017 Acoustical Society of America. Wind noise spectra caused by wind from fans in indoor environments have been found to be different from those measured in outdoor atmospheric conditions. Although many models have been developed to predict outdoor wind noise spectra under the assumption of large Reynolds number [Zhao, Cheng, Qiu, Burnett, and Liu (2016). J. Acoust. Soc. Am. 140, 4178-4182, and the references therein], they cannot be applied directly to the indoor situations because the Reynolds number of wind from fans in indoor environments is usually much smaller than that experienced in atmospheric turbulence. This paper proposes a pressure structure function model that combines the energy-containing and dissipation ranges so that the pressure spectrum for small Reynolds number turbulent flows can be calculated. The proposed pressure structure function model is validated with the experimental results in the literature, and then the obtained pressure spectrum is verified with the numerical simulation and experiment results. It is demonstrated that the pressure spectrum obtained from the proposed pressure structure function model can be utilized to estimate wind noise spectra caused by turbulent flows with small Reynolds numbers.

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http://hdl.handle.net/10453/126019