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Flow visualisation of polymer melts in abrupt contraction extrusion dies: quantification of melt recirculation and flow patterns

Polymer MeltsRheological Constitutive EquationViscoplastic FluidEngineeringRheological MeasurementFlow VisualisationFluid MechanicsMechanical EngineeringRheological PropertyPolymer ProcessingRheologySolid MechanicsMultiphase FlowPlasticitySolidificationPolymer MeltMelt Recirculation