An Audible Demonstration Of The Speed Of Sound In Bubbly Liquids

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dc.contributor.utaustinauthorWilson, Preston S.en
dc.creatorWilson, Preston S.en
dc.creatorRoy, Ronald A.en
dc.date.accessioned2015-09-09T15:50:51Zen
dc.date.available2015-09-09T15:50:51Zen
dc.date.issued2008-10en
dc.description.abstractThe speed of sound in a bubbly liquid is strongly dependent upon the volume fraction of the gas phase, the bubble size distribution, and the frequency of the acoustic excitation. At sufficiently low frequencies, the speed of sound depends primarily on the gas volume fraction. This effect can be audibly demonstrated using a one-dimensional acoustic waveguide, in which the flow rate of air bubbles injected into a water-filled tube is varied by the user. The normal modes of the waveguide are excited by the sound of the bubbles being injected into the tube. As the flow rate is varied, the speed of sound varies as well, and hence, the resonance frequencies shift. This can be clearly heard through the use of an amplified hydrophone and the user can create aesthetically pleasing and even musical sounds. In addition, the apparatus can be used to verify a simple mathematical model known as Wood's equation that relates the speed of sound of a bubbly liquid to its void fraction. (c) 2008 American Association of Physics Teachers.en
dc.description.departmentMechanical Engineeringen
dc.description.sponsorshipen
dc.identifier.citationPreston S. Wilson, Ronald A. Roy. An Audible Demonstration Of The Speed Of Sound In Bubbly Liquids. American Journal of Physics, 76, 975 (Oct., 2008) DOI: 10.1119/1.2907773en
dc.identifier.doi10.1119/1.2907773en
dc.identifier.issn0002-9505en
dc.identifier.urihttp://hdl.handle.net/2152/31138en
dc.identifier.urlen
dc.language.isoEnglishen
dc.relation.ispartofserialAmerican Journal of Physicsen
dc.rightsAdministrative deposit of works to Texas ScholarWorks: This works author(s) is or was a University faculty member, student or staff member; this article is already available through open access or the publisher allows a PDF version of the article to be freely posted online. The library makes the deposit as a matter of fair use (for scholarly, educational, and research purposes), and to preserve the work and further secure public access to the works of the University.en
dc.rights.holderen
dc.subjectgas-bubblesen
dc.subjectsurfaceen
dc.subjectnoiseen
dc.subjectwavesen
dc.subjectwateren
dc.subjecteducation, scientific disciplinesen
dc.subjectphysics, multidisciplinaryen
dc.titleAn Audible Demonstration Of The Speed Of Sound In Bubbly Liquidsen
dc.typeArticleen

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