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dc.contributor.authorAlexandrou, Andreas N.en
dc.contributor.authorConstantinou, N.en
dc.contributor.authorGeorgiou, Georgios C.en
dc.creatorAlexandrou, Andreas N.en
dc.creatorConstantinou, N.en
dc.creatorGeorgiou, Georgios C.en
dc.description.abstractThe purpose of this work is to simulate shear rejuvenation and aging effects in shear thinning yield stress fluids in a typical rotational rheometer and to provide a common framework to describe the behavior of yield stress materials in general. This is particularly important in the determination of material constants under both steady and unsteady conditions. The breakdown and buildup of structure are studied using a theory based on the Herschel-Bulkley flow model that it is consistent with experimental data. The theory is implemented using a novel computational method. Interestingly, the simulations reveal the existence of time-dependent shear banding that occurs within the gap when the macroscopically imposed shear rate is below a certain critical value. Shear banding is analyzed in detail and results showing the effects of major parameters on the phenomenon are presented. © 2009 Elsevier B.V. All rights reserved.en
dc.sourceJournal of Non-Newtonian Fluid Mechanicsen
dc.subjectShear flowen
dc.subjectShear bandingen
dc.subjectStructural parameteren
dc.subjectYield stressen
dc.subjectShear rejuvenationen
dc.subjectHerschel-Bulkley fluiden
dc.titleShear rejuvenation, aging and shear banding in yield stress fluidsen
dc.description.endingpage17Σχολή Θετικών και Εφαρμοσμένων Επιστημών / Faculty of Pure and Applied SciencesΤμήμα Μαθηματικών και Στατιστικής / Department of Mathematics and Statistics
dc.description.notes<p>Cited By :22</p>en
dc.source.abbreviationJ.Non-Newton.Fluid Mech.en
dc.contributor.orcidGeorgiou, Georgios C. [0000-0002-7451-224X]

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