Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/349114
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dc.contributor.CRUESPUNIVERSIDADE ESTADUAL DE CAMPINASpt_BR
dc.contributor.authorunicampCastro, Marcelo Souza de-
dc.typeArtigopt_BR
dc.titleInterfacial-tension-force model for the wavy-stratified liquid–liquid flow pattern transitionpt_BR
dc.contributor.authorRodriguez, Oscar M.H.-
dc.contributor.authorCastro, Marcelo S.-
dc.subjectFluxos estratificadospt_BR
dc.subject.otherlanguageStratified flowspt_BR
dc.description.abstractThe flow of two immiscible liquids is of common occurrence in a wide range of natural and industrial processes. The interest in liquid–liquid flow has recently increased mainly due to the petroleum industry, where oil and water are often transported together for long distances. In the current Brazilian offshore scenario, significant amount of water is being produced, and it tends to increase. The one-dimensional two-fluid model is used to model the wavy stratified liquid–liquid flow. A stability analysis is carried out, including the interfacial tension force and a single transition criterion is proposed. A new destabilizing term arises, which is a function of the cross-section curvature of the interface. The existence of short interfacial waves is considered and the effect of a concave or convex cross-section interface shape is included in the analysis. It is shown that the new interfacial tension term plays an important role in regions of extreme in situ volume fractions. The kinematic wave theory is used to model the observed interfacial wave. New geometrical and kinematic wave data are used to validate the proposed model. Transition boundaries are drawn on flow maps of the superficial velocities and the agreement with present data and data from literature is encouraging. The results help to elucidate the actual nature of the typical wavy structure observed in stratified flow and can be used for the proposition of more accurate flow-pattern transition modelspt_BR
dc.relation.ispartofInternational journal of multiphase flowpt_BR
dc.publisher.cityOxfordpt_BR
dc.publisher.countryReino Unidopt_BR
dc.publisherElsevierpt_BR
dc.date.issued2014-
dc.date.monthofcirculationJan.pt_BR
dc.language.isoengpt_BR
dc.description.volume58pt_BR
dc.description.firstpage114pt_BR
dc.description.lastpage126pt_BR
dc.rightsFechadopt_BR
dc.sourceWOSpt_BR
dc.identifier.issn0301-9322pt_BR
dc.identifier.eissn1879-3533pt_BR
dc.identifier.doi10.1016/j.ijmultiphaseflow.2013.09.003pt_BR
dc.identifier.urlhttps://www.sciencedirect.com/science/article/pii/S0301932213001389pt_BR
dc.description.sponsorshipCONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQpt_BR
dc.description.sponsordocumentnumberNão tempt_BR
dc.date.available2020-09-11T14:34:02Z-
dc.date.accessioned2020-09-11T14:34:02Z-
dc.description.provenanceSubmitted by Susilene Barbosa da Silva (susilene@unicamp.br) on 2020-09-11T14:34:02Z No. of bitstreams: 0. Added 1 bitstream(s) on 2021-01-07T20:39:34Z : No. of bitstreams: 1 000329553800010.pdf: 1712489 bytes, checksum: a6d5de4029fe38d46ad01ed54ddc93fd (MD5) Bitstreams deleted on 2021-01-08T14:10:12Z: 000329553800010.pdf,. Added 1 bitstream(s) on 2021-01-08T14:13:16Z : No. of bitstreams: 1 000329553800010.pdf: 1712489 bytes, checksum: a6d5de4029fe38d46ad01ed54ddc93fd (MD5) Bitstreams deleted on 2021-01-13T13:27:09Z: 000329553800010.pdf,. Added 1 bitstream(s) on 2021-01-13T13:29:00Z : No. of bitstreams: 1 000329553800010.pdf: 1712489 bytes, checksum: a6d5de4029fe38d46ad01ed54ddc93fd (MD5)en
dc.description.provenanceMade available in DSpace on 2020-09-11T14:34:02Z (GMT). No. of bitstreams: 0 Previous issue date: 2014en
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/349114-
dc.contributor.departmentDepartamento de Energiapt_BR
dc.contributor.unidadeFaculdade de Engenharia Mecânicapt_BR
dc.subject.keywordLiquid–liquid flowpt_BR
dc.subject.keywordHeavy oilpt_BR
dc.subject.keywordStratified flowpt_BR
dc.subject.keywordInterface shapept_BR
dc.identifier.source000329553800010pt_BR
dc.creator.orcid0000-0001-9797-9144pt_BR
dc.type.formArtigopt_BR
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