Interfacial-tension-force Model For The Wavy Stratified Liquid-liquid Flow Pattern Transition: The Usage Of Two Different Approaches

dc.creatorde Castro
dc.creatorMarcelo Souza; Hernandez Rodriguez
dc.creatorOscar Mauricio
dc.date2016
dc.date2017-11-13T11:35:09Z
dc.date2017-11-13T11:35:09Z
dc.date.accessioned2018-03-29T05:49:14Z
dc.date.available2018-03-29T05:49:14Z
dc.identifier978-0-7354-1392-4
dc.identifierProceedings Of The International Conference On Numerical Analysis And Applied Mathematics 2015 (icnaam-2015). Amer Inst Physics, v. 1738, p. , 2016.
dc.identifier0094-243X
dc.identifierWOS:000380803300350
dc.identifier10.1063/1.4952123
dc.identifierhttp://aip.scitation.org/doi/abs/10.1063/1.4952123
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/326553
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1363559
dc.descriptionThe study of the hydrodynamic stability of flow patterns is important in the design of equipment and pipelines for multiphase flows. The maintenance of a particular flow pattern becomes important in many applications, e.g., stratified flow pattern in heavy oil production avoiding the formation of emulsions because of the separation of phases and annular flow pattern in heat exchangers which increases the heat transfer coefficient. Flow maps are drawn to orientate engineers which flow pattern is present in a pipeline, for example. The ways how these flow maps are drawn have changed from totally experimental work, to phenomenological models, and then to stability analysis theories. In this work an experimental liquid-liquid flow map, with water and viscous oil as work fluids, drawn via subjective approach with high speed camera was used to compare to approaches of the same theory: the interfacial-tension-force model. This theory was used to drawn the wavy stratified flow pattern transition boundary. This paper presents a comparison between the two approaches of the interfacial-tension-force model for transition boundaries of liquid-liquid flow patterns: (i) solving the wave equation for the wave speed and using average values for wave number and wave speed; and (ii) solving the same equation for the wave number and then using a correlation for the wave speed. The results show that the second approach presents better results.
dc.description1738
dc.descriptionInternational Conference on Numerical Analysis and Applied Mathematics (ICNAAM)
dc.descriptionSEP 23-29, 2015
dc.descriptionRhodes, GREECE
dc.languageEnglish
dc.publisherAmer Inst Physics
dc.publisherMelville
dc.relationProceedings of the International Conference on Numerical Analysis and Applied Mathematics 2015 (ICNAAM-2015)
dc.rightsfechado
dc.sourceWOS
dc.subjectMultiphase Flow
dc.subjectWavy Stratified Flow Pattern
dc.subjectLiquid-liquid Flow
dc.subjectFlow Pattern Transition
dc.subjectTransition Boundary
dc.titleInterfacial-tension-force Model For The Wavy Stratified Liquid-liquid Flow Pattern Transition: The Usage Of Two Different Approaches
dc.typeActas de congresos


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