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Liquid Crystals and their Application
Russian Journal Zhidkie kristally i ikh prakticheskoe ispol'zovanie Жидкие кристаллы и их практическое использование |
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Zhidk. krist. ikh prakt. ispol'z. = Liq. Cryst. and their Appl., 2014, 14 (1), 22—31. |
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Non-Newtonian Flow of Structured Systems. VII. Shear Banding
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E. A. Kirsanov, Yu. N. Timoshin
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Author affiliations
Moscow State Region Socio-Humanitarian Institute
Zelenaya st., 30, 140410 Kolomna, Moscow Region, Russia.
E-mail: Kirsanov47@mail.ru
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Abstract
The shear-banding phenomenon in worm-like micellar systems is studied. It is shown that the shear bands can be explained within the framework of a structural model of the flow. Flow curves are well approximated by the Newton equation or generalized flow equation at low and high shear regions. The intermediate region with a non-monotonic behavior appears due to the transition from one flow regime to another with increasing shear rate or shear stress.
Keywords: worm-like micellar systems, shear-banding phenomenon, plastic and pseudoplastic flow
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