The Mesoscopic Constitutive Equations for Polymeric Fluids and Some Examples of Viscometric Flows

Gregory Pyshnograi, Hyder Nadom Aziz Al Joda, Ivan Pyshnograi

Department of Mathematics, Altai State Technical University, Barnaul, Russia.

DOI: 10.4236/wjm.2012.21003                

Abstract

Constitutive equations for melts and concentrated solutions of linear polymers are derived as consequences of dynamics of a separate macromolecule. The model is investigated for viscometric flows. It was shown that the model gives a good description of non-linear effects of simple shear polymer flows: viscosity anomalies, first and second normal stresses, non-steady shear stresses.

Keywords

Rheology; Linear Polymer Melts and Solutions; Constitutive Equation; Mesoscopic Approach

Conflicts of Interest

The authors declare no conflicts of interest.

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