Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.12104/43346
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dc.contributor.authorBautista, F.
dc.contributor.authorSoltero, J.F.A.
dc.contributor.authorPerez-Lopez, J.H.
dc.contributor.authorPuig, J.E.
dc.contributor.authorManero, O.
dc.date.accessioned2015-09-15T18:33:29Z-
dc.date.available2015-09-15T18:33:29Z-
dc.date.issued2000
dc.identifier.urihttp://www.scopus.com/inward/record.url?eid=2-s2.0-0034333503&partnerID=40&md5=74fcd5e77bc8e3a5f8ed28b3b29c98ca
dc.identifier.urihttp://hdl.handle.net/20.500.12104/43346-
dc.description.abstractUnder steady shear flow, elongated micellar solutions show shear stress saturation above a critical shear rate due to the formation of shear bands that result in non-homogeneous flow. Long transients and oscillations accompany this stress plateau. When measurements are done with a controlled stress rheometer, frequently a metastable branch is observed. At higher shear rates, a second upturn is observed above a second critical shear rate, which indicates that homogeneous flow is recovered. Here, a model consisting of the codeformational Maxwell constitutive equation coupled to a kinetic equation to account for the breaking and reformation of the micelles is presented to reproduce the features described above in steady shear flow. The model also predicts a second metastable branch and long transients at higher shear rates and the existence of an inflexion point in stress-shear rate plots above which no shear banding behavior is detected. (C) 2000 Elsevier Science B.V. All rights reserved.Under steady shear flow, elongated micellar solutions show shear stress saturation above a critical shear rate due to the formation of shear bands that result in non-homogeneous flow. Long transients and oscillations accompany this stress plateau. When measurements are done with a controlled stress rheometer, frequently a metastable branch is observed. At higher shear rates, a second upturn is observed above a second critical shear rate, which indicates that homogeneous flow is recovered. Here, a model consisting of the codeformational Maxwell constitutive equation coupled to a kinetic equation to account for the breaking and reformation of the micelles is presented to reproduce the features described above in steady shear flow. The model also predicts a second metastable branch and long transients at higher shear rates and the existence of an inflexion point in stress-shear rate plots above which no shear banding behavior is detected.
dc.relation.isreferencedbyScopus
dc.relation.isreferencedbyWOS
dc.titleOn the shear banding flow of elongated micellar solutions
dc.typeArticle
dc.identifier.doi10.1016/S0377-0257(00)00128-2
dc.relation.ispartofjournalJournal of Non-Newtonian Fluid Mechanics
dc.relation.ispartofvolume94
dc.relation.ispartofissue1
dc.relation.ispartofpage57
dc.relation.ispartofpage66
dc.subject.keywordCodeformational Maxwell constitutive equation; Micellar solutions; Steady shear flow
dc.contributor.affiliationBautista, F., Departamento De Ingenier�a Qu�mica -- CUCEI, Universidad De Guadalajara, Boul. M. Garcia Barragan # 1451, Guadalajara, Jal. 44430, Mexico; Soltero, J.F.A., Departamento De Ingenier�a Qu�mica -- CUCEI, Universidad De Guadalajara, Boul. M. Garcia Barragan # 1451, Guadalajara, Jal. 44430, Mexico; P�rez-L�pez, J.H., Departamento De Ingenier�a Qu�mica -- CUCEI, Universidad De Guadalajara, Boul. M. Garcia Barragan # 1451, Guadalajara, Jal. 44430, Mexico; Puig, J.E., Departamento De Ingenier�a Qu�mica -- CUCEI, Universidad De Guadalajara, Boul. M. Garcia Barragan # 1451, Guadalajara, Jal. 44430, Mexico; Manero, O., Instituto De Investigaciones En Materiales, Universidad Nacional Aut�noma De M�xico, Apdo. Postal 70-360, M�xico, D.F. 04510, Mexico
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