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dc.contributorVirginia Tech
dc.contributor.authorWannaborworn, S.
dc.contributor.authorMackley, M. R.
dc.contributor.authorRenardy, Y.
dc.date.accessioned2014-03-26T17:35:13Z
dc.date.available2014-03-26T17:35:13Z
dc.date.issued2002-09
dc.identifier.citationJ. Rheol. 46, 1279 (2002); http://dx.doi.org/10.1122/1.1501960
dc.identifier.issn0148-6055
dc.identifier.urihttp://hdl.handle.net/10919/46793
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.
dc.description.sponsorshipNSF-INT 9815106
dc.description.sponsorshipACS-PRF
dc.description.sponsorshipNSF-DMS SCREMS
dc.description.sponsorshipIllinois NCSA CTS990010N, CTS990059N, CTS990063N
dc.description.sponsorshipPetroleum Research Fund, administered by the ACS
dc.description.sponsorshipCambridge Overseas Trust, Cambridge Thai Foundation and Linkam Scientific Instruments Ltd.
dc.language.isoen_US
dc.publisherAIP Publishing
dc.subjectinterfacial-tension
dc.subjectflows
dc.subjectdynamics
dc.subjectsteady
dc.subjectfluids
dc.titleexperimental observation and matching numerical simulation for the deformation and breakup of immiscible drops in oscillatory shear
dc.typeArticle
dc.identifier.urlhttp://scitation.aip.org/content/sor/journal/jor2/46/5/10.1122/1.1501960
dc.date.accessed2014-03-11
dc.title.serialJournal of Rheology
dc.identifier.doihttps://doi.org/10.1122/1.1501960


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