Polymer conformations and hysteretic stresses in nonstationary flows of polymer solutions
Idioma
en
Article de revue
Este ítem está publicado en
EPL - Europhysics Letters. 2009-05-12, vol. 86, n° 3, p. 34002
European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing
Resumen en inglés
The low Reynolds number flow of a polymer solution around a cylinder engenders a nonlinear drag force vs. the flow velocity. A velocity quench of such a flow gives rise to a long time relaxation and hysteresis of the stress ...Leer más >
The low Reynolds number flow of a polymer solution around a cylinder engenders a nonlinear drag force vs. the flow velocity. A velocity quench of such a flow gives rise to a long time relaxation and hysteresis of the stress due to history-dependent elastic effects. Our results suggest that such hysteretic behavior has its origin in the long time relaxation dynamics and hysteresis of the polymer conformations.< Leer menos
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