Selection of model liquid with refractive index matching for visualization of internal flow in a scaled atomizer model

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dc.contributor.authorSapík, Marcelcs
dc.contributor.authorMalý, Milancs
dc.contributor.authorJedelský, Jancs
dc.contributor.authorWigley, Grahamcs
dc.contributor.authorCejpek, Ondřejcs
dc.coverage.issue1cs
dc.coverage.volume213cs
dc.date.issued2019-06-28cs
dc.description.abstractA scaled transparent modular model of pressure-swirl (PS) atomizer was prepared from cast PMMA (Poly(methyl methacrylate), Perspex™, Plexiglas™) with the aim to achieve a better understanding of internal flow and subsequent spray formation. Because of use of high-speed imaging and Laser Doppler Anemometry (LDA) the working liquid had to be selected with respect of a refractive index matching (RIM) with the atomizer material. The liquid should be colourless and chemically non-aggressive to the model material with suitable viscosity to achieve the Reynolds number of the internal flow of the original atomizer. Froude number should be high enough to neglect the influence of gravity on the flow. An extensive search for transparent liquids and materials of enlarged models was made with a focus on RIM in performed experiments. Several liquids were chosen, and their chemical effect on PMMA was tested. Despite the successful tests that proved the liquid suit the case, the model material was damaged and the tests proved to be insufficient. For this reason, the tests were modified to better involve the stress of the bolted model. It turned out that a force effect (bolt in the thread, pre-stressed bolt connection) on the material has a significant influence on the acceleration of the chemical effect. The internal flow was examined using a high-speed camera with several liquids.en
dc.formattextcs
dc.format.extent1-6cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationEPJ Web of Conferences. 2019, vol. 213, issue 1, p. 1-6.en
dc.identifier.doi10.1051/epjconf/201921302070cs
dc.identifier.issn2100-014Xcs
dc.identifier.orcid0000-0002-1193-519Xcs
dc.identifier.orcid0000-0002-1268-8434cs
dc.identifier.orcid0000-0002-7854-9533cs
dc.identifier.other151981cs
dc.identifier.researcheridAAD-1936-2019cs
dc.identifier.researcheridAAY-7288-2021cs
dc.identifier.researcheridA-9224-2013cs
dc.identifier.scopus57201154516cs
dc.identifier.scopus57189715785cs
dc.identifier.scopus23090535800cs
dc.identifier.urihttp://hdl.handle.net/11012/193672
dc.language.isoencs
dc.publisherEDP Sciencescs
dc.relation.ispartofEPJ Web of Conferencescs
dc.relation.urihttps://www.epj-conferences.org/articles/epjconf/abs/2019/18/epjconf_efm18_02070/epjconf_efm18_02070.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.subjectAtomizationen
dc.subjectNozzleen
dc.subjectPMMAen
dc.subjectRefractive Indexen
dc.titleSelection of model liquid with refractive index matching for visualization of internal flow in a scaled atomizer modelen
dc.type.driverconferenceObjecten
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-151981en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:46:47en
sync.item.modts2025.01.17 16:39:20en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Energetický ústavcs
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. EÚ-odbor termomechaniky a techniky prostředícs
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EÚ-odbor termomechaniky a techniky prostředí