Bulk viscosity of water in acoustic modal analysis and experiment

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dc.contributor.authorKůrečka, Jancs
dc.contributor.authorHabán, Vladimírcs
dc.contributor.authorHimr, Danielcs
dc.coverage.issue2018cs
dc.coverage.volume180cs
dc.date.accessioned2018-09-24T14:48:11Z
dc.date.available2018-09-24T14:48:11Z
dc.date.issued2018-06-04cs
dc.description.abstractBulk viscosity is an important factor in the damping properties of fluid systems and exhibits frequency dependent behaviour. A comparison between modal analysis in ANSYS Acoustics, custom code and experimental data is presented in this paper. The measured system consists of closed ended water-filled steel pipes of different lengths. The influence of a pipe wall, flanges on both ends and longitudinal waves in the structural part were included in measurement evaluation. Therefore, the obtained values of sound speed and bulk viscosity are parameters of the fluid. A numerical simulation was carried out only using fluid volume in a range of bulk viscosity. Damping characteristics in this range were compared to measured values. The results show a significant influence of sound speed and subsequently, the use of sound speed value regressed from experimental data yields a better fit between the measurement and the computation.en
dc.formattextcs
dc.format.extent1-6cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationEPJ Web of Conferences. 2018, vol. 180, issue 2018, p. 1-6.en
dc.identifier.doi10.1051/epjconf/201818002049cs
dc.identifier.issn2100-014Xcs
dc.identifier.other150102cs
dc.identifier.urihttp://hdl.handle.net/11012/85323
dc.language.isoencs
dc.publisherEDP Sciencescs
dc.relation.ispartofEPJ Web of Conferencescs
dc.relation.urihttps://www.epj-conferences.org/articles/epjconf/abs/2018/15/epjconf_efm2018_02049/epjconf_efm2018_02049.htmlcs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2100-014X/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectbulk viscosityen
dc.subjectfluid acousticsen
dc.titleBulk viscosity of water in acoustic modal analysis and experimenten
dc.title.alternativeDruhá viskozita vody v akustické modální analýze a v experimentucs
dc.type.driverconferenceObjecten
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-150102en
sync.item.dbtypeVAVen
sync.item.insts2020.03.31 09:58:00en
sync.item.modts2020.03.31 07:40:00en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Energetický ústavcs
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