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Extensional rheology of dilute polymer solutions in oscillatory cross-slot flow: the transient behaviour of birefringent strands

โœ Scribed by Simon J. Haward; Jeffrey A. Odell; Zhuo Li; Xue-Feng Yuan


Publisher
Springer-Verlag
Year
2010
Tongue
English
Weight
589 KB
Volume
49
Category
Article
ISSN
0035-4511

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We consider stagnation point flow away from a wall for creeping flow of dilute polymer solutions. For a simplified flow geometry, we explicitly show that a narrow region of strong polymer extension (a birefringent strand) forms downstream of the stagnation point in the UCM model and extensions, like