Influence of anisotropic liners on the attenuation of sound in circular ducts

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dc.contributorVirginia Tech. Engineering Science and Mechanics Departmenten
dc.contributor.authorSun, Johnen
dc.contributor.authorNayfeh, Ali H.en
dc.contributor.departmentBiomedical Engineering and Mechanicsen
dc.date.accessed2015-05-12en
dc.date.accessioned2015-05-28T14:56:08Zen
dc.date.available2015-05-28T14:56:08Zen
dc.date.issued1976en
dc.description.abstractAn analysis is presented of the sound propagation and attenuation in a circular duct carrying a uniform mean flow and lined with an anisotropicporous material backed by cellular cavities. A combination of a fourth-order Runge-Kutta routine and a Newton-Raphson procedure is used to determine the effects of the liner properties, the flowMach number, and the sound frequency on the attenuation of spinning and nonspinning modes. The results show that low-frequency noise is better attenuated by anisotropic liners. The optimum liner is the one whose axial resistivity increases with increasing frequency.en
dc.description.sponsorshipNaval Surface Weapons Centeren
dc.format.extent6 pagesen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationSun, J. N. & Nayfeh, A. H. (1976). Influence of anisotropic liners on the attenuation of sound in circular ducts. Journal of the Acoustical Society of America, 59(5), 1065-1070. doi: 10.1121/1.380971en
dc.identifier.doihttps://doi.org/10.1121/1.380971en
dc.identifier.issn0001-4966en
dc.identifier.urihttp://hdl.handle.net/10919/52718en
dc.identifier.urlhttp://scitation.aip.org/content/asa/journal/jasa/59/5/10.1121/1.380971en
dc.language.isoen_USen
dc.publisherAcoustical Society of Americaen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectAnisotropyen
dc.subjectDuct flowsen
dc.subjectAcoustic analysisen
dc.subjectAcoustic noiseen
dc.subjectAcoustical effectsen
dc.titleInfluence of anisotropic liners on the attenuation of sound in circular ductsen
dc.title.serialJournal of the Acoustical Society of Americaen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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