Low-pressure twin-fluid atomization: Effect of mixing process on spray formation

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dc.contributor.authorZaremba, Matoušcs
dc.contributor.authorWeiß, Lukascs
dc.contributor.authorMalý, Milancs
dc.contributor.authorWensing, Michaelcs
dc.contributor.authorJedelský, Jancs
dc.contributor.authorJícha, Miroslavcs
dc.coverage.issue1cs
dc.coverage.volume89cs
dc.date.issued2017-01-01cs
dc.description.abstractThe present work comparably examines four different twin-fluid atomizers operated under the same op- erating conditions. Spray formation was examined by several approaches. The internal flow pattern was estimated using a simplified analytical approach, and the results were supported by the observation of the liquid discharge in the near-nozzle region. A high-speed back illumination was used for visualisation of the primary breakup. In the region of fully developed spray, the dynamics of droplets was studied using a phase-Doppler analyser (PDA). The information obtained from all methods was then correlated. Results show that the spray formation process depends mainly on the internal design of twin-fluid at- omizer at low gas to liquid ratios (GLR). The amount of gas influences the character of the internal two- phase flow, a mechanism of the liquid breakup, droplet dynamics and a resulting drop size distribution. Differences among the atomizers are reduced with the increase in GLR. Moreover, it was shown that a certain mixing process can inherently create the annular internal flow which generates a stable spray characterized by relatively low mean droplet size.en
dc.formattextcs
dc.format.extent277-289cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationINTERNATIONAL JOURNAL OF MULTIPHASE FLOW. 2017, vol. 89, issue 1, p. 277-289.en
dc.identifier.doi10.1016/j.ijmultiphaseflow.2016.10.015cs
dc.identifier.issn0301-9322cs
dc.identifier.orcid0000-0002-1193-519Xcs
dc.identifier.orcid0000-0002-1268-8434cs
dc.identifier.orcid0000-0002-1409-5165cs
dc.identifier.other130067cs
dc.identifier.researcheridAAY-7288-2021cs
dc.identifier.researcheridA-9224-2013cs
dc.identifier.researcheridCVT-7747-2022cs
dc.identifier.scopus57189715785cs
dc.identifier.scopus23090535800cs
dc.identifier.scopus6602494673cs
dc.identifier.urihttp://hdl.handle.net/11012/138390
dc.language.isoencs
dc.publisherElseviercs
dc.relation.ispartofINTERNATIONAL JOURNAL OF MULTIPHASE FLOWcs
dc.relation.urihttp://www.sciencedirect.com/science/article/pii/S0301932216300271cs
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/0301-9322/cs
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/cs
dc.subjectLow-pressureen
dc.subjectAtomizationen
dc.subjectTwin-fluiden
dc.subjectDroplet dynamicsen
dc.subjectLiquid breakupen
dc.subjectBack illuminationen
dc.titleLow-pressure twin-fluid atomization: Effect of mixing process on spray formationen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionacceptedVersionen
sync.item.dbidVAV-130067en
sync.item.dbtypeVAVen
sync.item.insts2024.03.08 17:46:11en
sync.item.modts2024.03.08 17:13:59en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Energetický ústavcs
thesis.grantorVysoké učení technické v Brně. . Friedrich-Alexander Universität Erlangen-Nürnbergcs
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