TITLE:
The Mesoscopic Constitutive Equations for Polymeric Fluids and Some Examples of Viscometric Flows
AUTHORS:
Gregory Pyshnograi, Hyder Nadom Aziz Al Joda, Ivan Pyshnograi
KEYWORDS:
Rheology; Linear Polymer Melts and Solutions; Constitutive Equation; Mesoscopic Approach
JOURNAL NAME:
World Journal of Mechanics,
Vol.2 No.1,
February
29,
2012
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.