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Numerical simulation of flow of viscoelastic fluids
Author(s) -
Wünsch Olaf,
Krebs Mathias
Publication year - 2007
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.200700592
Subject(s) - viscoelasticity , newtonian fluid , flow (mathematics) , mechanics , non newtonian fluid , generalized newtonian fluid , constitutive equation , computer simulation , rheology , materials science , thermodynamics , physics , finite element method , shear rate
The paper deals with the numerical calculation of highly viscous, non‐newtonian fluid flows in apparatus of mechanical engineering. We use a differential constitutive equation to approximate the real behaviour of technical fluids like polymer melts. By means of calculated flow examples in two and three dimensional geometries we demonstrate the influence of the non‐newtonian behaviour. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)