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dc.contributor.authorDrumright-Clarke, Mary Annen
dc.date.accessioned2014-03-14T20:09:44Zen
dc.date.available2014-03-14T20:09:44Zen
dc.date.issued2002-04-15en
dc.identifier.otheretd-04162002-113943en
dc.identifier.urihttp://hdl.handle.net/10919/26895en
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
dc.publisherVirginia Techen
dc.relation.haspartMain2.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectsurfactanten
dc.subjectVOFen
dc.subjectreductionen
dc.subjectVolume of Fluiden
dc.titleNumerical simulations that characterize the effects of surfactant on droplets in shear flowen
dc.typeDissertationen
dc.contributor.departmentMathematicsen
dc.description.degreePh. D.en
thesis.degree.namePh. D.en
thesis.degree.leveldoctoralen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.disciplineMathematicsen
dc.contributor.committeechairRenardy, Yuriko Y.en
dc.contributor.committeememberRenardy, Michael J.en
dc.contributor.committeememberSun, Shu-Mingen
dc.contributor.committeememberRogers, Robert C.en
dc.contributor.committeememberLin, Taoen
dc.contributor.committeememberKim, Jong Uhnen
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-04162002-113943/en
dc.date.sdate2002-04-16en
dc.date.rdate2003-04-17en
dc.date.adate2002-04-17en


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