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A comparison of viscoelastic and empirical rheological models in context of squeeze flows
Author(s) -
Descher Stefan,
Wünsch Olaf
Publication year - 2015
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201510243
Subject(s) - carreau fluid , viscoelasticity , rheology , mechanics , context (archaeology) , viscosity , non newtonian fluid , shear stress , materials science , thermodynamics , physics , geology , paleontology
This work compares the behavior of a Giesekus and Carreau‐Yasuda fluid in a squeeze flow between two circular plates. In order to do this the Carreau‐Yasuda model is fitted to the shear viscosity curve of the Giesekus model and the squeeze stress is compared over the process time. The investigations are performed numerically with a 2.5 dimensional wedge model. (© 2015 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)