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Stress gradient-induced migration effects in the Taylor-Couette flow of a dilute polymer solution. (English) Zbl 1012.76007
The authors study a fully developed Taylor-Couette flow of dilute polymer solution. The governing equations are based on the model of binary mixture of a polymer additive modeled as Oldroyd-B fluid, and a Newtonian solvent. The calculations show the development of strong gradient-induced polymer migration toward the inner cylinder with increasing Deborah number, and the stability of steady-state solution at moderate values of Deborah number.

MSC:
76A10 Viscoelastic fluids
82D60 Statistical mechanics of polymers
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