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dc.contributor.authorDrumright-Clarke, Mary Annen_US
dc.date.accessioned2014-03-14T20:09:44Z
dc.date.available2014-03-14T20:09:44Z
dc.date.issued2002-04-15en_US
dc.identifier.otheretd-04162002-113943en_US
dc.identifier.urihttp://hdl.handle.net/10919/26895
dc.description.abstractNumerical simulations utilizing the code SURFER++ with the incorporation of an insoluble surfactant in the VOF scheme were conducted to characterize the effects of surfactant on a drop in shear flow. The drop is suspended in a matrix liquid. A parameter called reduction, which specifically relates to a percentage decrease in effective surface tension, is used to measure the surfactant amount on the interface. In a model system where reduction = 0.1, viscosity ratio = 1 and density ratio = 1, it was found that stable drops tend to be more elongated and less inclined to the primary flow direction than drops unexposed to surfactant. This can be explained by the location of surfactant at the interface as the drop evolves. Breaking drops also show a flattened angle, but exhibit shorter necks and faster time to break than similar drops without surfactant. As reduction increases, various physical characteristics of the drops change across Reynolds number.en_US
dc.publisherVirginia Techen_US
dc.relation.haspartMain2.pdfen_US
dc.rightsI hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to Virginia Tech or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report.en_US
dc.subjectsurfactanten_US
dc.subjectVOFen_US
dc.subjectreductionen_US
dc.subjectVolume of Fluiden_US
dc.titleNumerical simulations that characterize the effects of surfactant on droplets in shear flowen_US
dc.typeDissertationen_US
dc.contributor.departmentMathematicsen_US
dc.description.degreePh. D.en_US
thesis.degree.namePh. D.en_US
thesis.degree.leveldoctoralen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
thesis.degree.disciplineMathematicsen_US
dc.contributor.committeechairRenardy, Yuriko Y.en_US
dc.contributor.committeememberRenardy, Michael J.en_US
dc.contributor.committeememberSun, Shu-Mingen_US
dc.contributor.committeememberRogers, Robert C.en_US
dc.contributor.committeememberLin, Taoen_US
dc.contributor.committeememberKim, Jong Uhnen_US
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-04162002-113943/en_US
dc.date.sdate2002-04-16en_US
dc.date.rdate2003-04-17
dc.date.adate2002-04-17en_US


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