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Morphology of Bubble Formation on Droplet Impact upon Thin Liquid Layers

2020-01-05Conference object Restricted access
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dc.contributor.authorRibeiro, Daniela
dc.contributor.authorPanão, Miguel
dc.contributor.authorBarata, Jorge M M
dc.contributor.authorSilva, A. R. R.
dc.date.accessioned2020-08-31T10:34:08Z
dc.date.available2020-08-31T10:34:08Z
dc.date.issued2020-01-05
dc.description.abstractWithin the wide possibilities for the resultant outcome of a single droplet impinging upon a liquid film, there is an unstudied phenomenon that seems to be underestimated or forgotten in time. The formation of a bubble by the crown sheet closure at the top after crown splash is the focus of this paper. The phenomenon was deeply studied as well as its occurrence, main features, and physical significance. It is important to understand completely the phenomenon to asses if it should be encouraged or avoided inside the combustion chamber of an IC engine, since it has higher production of secondary atomization due to the larger lifetime, and on the other hand, the bubble bursting increase the production of airborne particles that could affectthe pollutant emissions. Several impacts conditions were tested and it was found three different types of bubble formation depending on the jets formed at the closure point. The event was observed both from below and from the side, enhancing the knowledge about the droplet-film impact itself. The main features were studied including, the bubbling height and diameter, and the propagation velocity of the first perturbation imposed on the liquid film.pt_PT
dc.description.sponsorshipFundação para a Ciência e a Tecnologia (FCT) e Fundação Luso-Americana para o Desenvolvimento (FLAD) Proj. nº 05/2020pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.2514/6.2020-1577pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.6/10403
dc.language.isoengpt_PT
dc.peerreviewednopt_PT
dc.publisherAmerican Institute of Aeronautics and Astronautics Inc, AIAApt_PT
dc.relationAssociate Laboratory of Energy, Transports and Aeronautics
dc.relation.publisherversionhttps://arc.aiaa.org/doi/pdf/10.2514/6.2020-1577pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectDroplet Impactpt_PT
dc.subjectThin Liquid Layerspt_PT
dc.subjectBubble Formationpt_PT
dc.subjectExperimentalpt_PT
dc.subjectSecondary atomisationpt_PT
dc.subjectBiofuelspt_PT
dc.titleMorphology of Bubble Formation on Droplet Impact upon Thin Liquid Layerspt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitleAssociate Laboratory of Energy, Transports and Aeronautics
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FEMS%2F50022%2F2019/PT
oaire.citation.conferencePlaceOrlando, Flórida, Estados Unidos da Américapt_PT
oaire.citation.endPage12pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleAIAA Scitech 2020 Forumpt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameRibeiro
person.familyNamePanão
person.familyNameMartins Barata
person.familyNameResende Rodrigues da Silva
person.givenNameDaniela
person.givenNameMiguel Rosa Oliveira
person.givenNameJorge Manuel
person.givenNameAndré
person.identifiertnDRoxYAAAAJ
person.identifierhFY_5JYAAAAJ&hl
person.identifierJ-4185-2012
person.identifier.ciencia-id181F-16AE-4536
person.identifier.ciencia-idF611-BBCC-DAA8
person.identifier.ciencia-id8219-4B2B-E1C7
person.identifier.orcid0000-0001-5059-5303
person.identifier.orcid0000-0001-9561-9268
person.identifier.orcid0000-0001-9014-5008
person.identifier.orcid0000-0002-4901-7140
person.identifier.scopus-author-id8900941900
person.identifier.scopus-author-id11439470600
person.identifier.scopus-author-id11440407500
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.embargofctPara ter acesso ao artigo é pagar à American Institute of Aeronautics and Astronauticpt_PT
rcaap.rightsclosedAccesspt_PT
rcaap.typeconferenceObjectpt_PT
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