Experimental observation and matching numerical simulation for the deformation and breakup of immiscible drops in oscillatory shear

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dc.contributorVirginia Techen
dc.contributor.authorWannaborworn, S.en
dc.contributor.authorMackley, M. R.en
dc.contributor.authorRenardy, Yuriko Y.en
dc.contributor.departmentMathematicsen
dc.date.accessed2014-03-11en
dc.date.accessioned2014-03-26T17:35:13Zen
dc.date.available2014-03-26T17:35:13Zen
dc.date.issued2002-09en
dc.description.abstractThis paper describes experimental results on the way immiscible drops of a Newtonian fluid can deform and breakup when subject to oscillatory shear deformation. The paper also reports a matching three-dimensional numerical simulation of corresponding events. Using an optical shearing apparatus and a modified rheometer, experimental observations on the deformation of drops with a viscosity ratio of unity were carried out for a range of strain amplitudes and frequencies. For moderate strain deformations, it was discovered experimentally that the drop deformation oscillates between a maximum and a nonzero minimum deformation parameter and that the numerical simulation was able to capture both this and start up effects. For large strain deformations it was experimentally observed that breakup occurred only by one mechanism; namely, end pinching, and this was successfully matched by the numerical simulation. The results for oscillatory deformation and breakup are compared with those obtained in steady shear. (C) 2002 The Society of Rheology.en
dc.description.sponsorshipNSF-INT 9815106en
dc.description.sponsorshipACS-PRFen
dc.description.sponsorshipNSF-DMS SCREMSen
dc.description.sponsorshipIllinois NCSA CTS990010N, CTS990059N, CTS990063Nen
dc.description.sponsorshipPetroleum Research Fund, administered by the ACSen
dc.description.sponsorshipCambridge Overseas Trust, Cambridge Thai Foundation and Linkam Scientific Instruments Ltd.en
dc.identifier.citationJ. Rheol. 46, 1279 (2002); http://dx.doi.org/10.1122/1.1501960en
dc.identifier.doihttps://doi.org/10.1122/1.1501960en
dc.identifier.issn0148-6055en
dc.identifier.urihttp://hdl.handle.net/10919/46793en
dc.identifier.urlhttp://scitation.aip.org/content/sor/journal/jor2/46/5/10.1122/1.1501960en
dc.language.isoen_USen
dc.publisherAIP Publishingen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectinterfacial-tensionen
dc.subjectflowsen
dc.subjectdynamicsen
dc.subjectsteadyen
dc.subjectfluidsen
dc.titleExperimental observation and matching numerical simulation for the deformation and breakup of immiscible drops in oscillatory shearen
dc.title.serialJournal of Rheologyen
dc.typeArticle - Refereeden

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