Stress-gradient induced migration of polymers in complex geometries

• Main Author: Τσούκα, Σοφία
• Other Authors: Τσαμόπουλος, Ιωάννης
• Format: Thesis
• Language: English
• Published: 2015
• Subjects: Polymers; Fluid mechanics; Computational; FEM; Viscoelastic; Rheology; Πολυμερή; Ρευστομηχανική; Υπολογιστική; Πεπερασμένα στοιχεία; Ιξωδοελαστικό; Ρεολογία; 532.51

We study the flow of a dilute polymer solution in a wavy channel under steady-state flow conditions by employing the non-equilibrium thermodynamics two-fluid model (Mavrantzas-Beris, 1992), allowing for the coupling between polymer concentration and polymer stresses. The resulting highly complex sys...