The vortex growth of a K.B.K.Z. fluid in an abrupt contraction
type: Item
instance of: scholarly article
title: The vortex growth of a K.B.K.Z. fluid in an abrupt contraction
zbMATH Open document ID: 0666.76031
DOI: 10.1016/0377-0257(88)85051-1
author: S. H. Smith
published in: Journal of Non-Newtonian Fluid Mechanics
publication date: 1988-01-01T00:00:00Z
review text: A constitutive equation of the K.B.K.Z. type is used to describe the flow behavior of LDPE melts in abrupt contractions. The numerical algorithm is the finite element method based on a fixed mesh while the strain history is calculated along streamlines. It is shown that the calculations based on the K.B.K.Z. model do predict the occurrence of vortices at relatively low values of the Weissenberg number, which in general is not the case with other less realistic models.
Mathematics Subject Classification ID: 76A10
Mathematics Subject Classification ID: 76M99
zbMATH DE Number: 4091004
zbMATH Keywords: constitutive equation of the K.B.K.Z. type
zbMATH Keywords: LDPE melts
zbMATH Keywords: abrupt contractions
zbMATH Keywords: finite element method
zbMATH Keywords: low values of the Weissenberg number
MaRDI profile type: Publication
full work available at URL: 0377-0257(88)85051-1
OpenAlex ID: W1998941612
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description: scientific article; zbMATH DE number 4091004