Measurement of Cyclic Flows in Trachea Using PIV and Numerical simulation

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dc.contributor.authorBělka, Miloslavcs
dc.contributor.authorElcner, Jakubcs
dc.contributor.authorJedelský, Jancs
dc.contributor.authorBoiron, Oliviercs
dc.contributor.authorKnapp, Yannickcs
dc.contributor.authorBailly, Luciecs
dc.coverage.issue1cs
dc.coverage.volume92cs
dc.date.accessioned2020-08-06T10:57:34Z
dc.date.available2020-08-06T10:57:34Z
dc.date.issued2015-05-06cs
dc.description.abstractInhalation of pharmaceutical aerosols is a convenient way to treat lung or even systemic diseases. For effective treatment it is very important to understand air flow characteristics within respiratory airways and determine deposition hot spots. In this paper the air flow in trachea was investigated by numerical simulations. To validate these results we carried out particle image velocimetry experiments and compared resulting velocity fields. Simplified geometry of respiratory airways from oral cavity to 4th generation of branching was employed. Air flow characteristics were analysed during sinusoidal breathing pattern for light activity conditions (period 4 s and tidal volume 1 l). The observed flow fields indicated that the flow in trachea is turbulent during the sinusoidal flow except phases of flow turnarounds. The flow was skewed to front side of the trachea during inspiration and had twin-peak profile during expiration because of the mixing from daughter branches. The methods were compared and good agreement was found. This validation of CFD simulation can result into its further usage in respiratory airflow studies.en
dc.description.abstractInhalace farmaceutických aerosolů je pohodlný způsob, kterým se lečí dýchací obtíže. Pro efektivní léčbu je potřeba přivést aerosol na předem určené místo a k tomu je nutné dobře porozumět proudění v dýchacích cestách. V tomto článku byl studováno proudění v průdušnici za pomoci PIV a CFD. Byla snaha validovat výsledky simulací pomocí experimentu. Proudění se měřilo v zjednodušeném modelu plic během sinusoidového dechového režimu. Byla nalezena dobrá shoda, což povedeno k dalšímu použití CFD při studiu proudění v plicích.cs
dc.formattextcs
dc.format.extent1-4cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationEPJ Web of Conferences. 2015, vol. 92, issue 1, p. 1-4.en
dc.identifier.doi10.1051/epjconf/20159202006cs
dc.identifier.issn2100-014Xcs
dc.identifier.other110746cs
dc.identifier.urihttp://hdl.handle.net/11012/194767
dc.language.isoencs
dc.publisherEDP Sciencescs
dc.relation.ispartofEPJ Web of Conferencescs
dc.relation.urihttps://www.epj-conferences.org/articles/epjconf/abs/2015/11/epjconf_efm2014_02006/epjconf_efm2014_02006.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.subjectparticle image velocimetryen
dc.subjectCFDen
dc.subjecttracheaen
dc.subjectlaryngeal jeten
dc.subjectparticle image velocimetry
dc.subjectCFD
dc.subjectprůdušnice
dc.subjectlaryngealní proud
dc.titleMeasurement of Cyclic Flows in Trachea Using PIV and Numerical simulationen
dc.title.alternativeStudie cyklického proudění v průdušnici za použití PIV a numerických simulacícs
dc.type.driverconferenceObjecten
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-110746en
sync.item.dbtypeVAVen
sync.item.insts2020.08.06 12:57:34en
sync.item.modts2020.08.06 12:16:40en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Energetický ústavcs
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