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Some studies of annular extrudate swell phenomena
Author(s) -
Seo Yongsok
Publication year - 1990
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1990.070410104
Subject(s) - die swell , newtonian fluid , generalized newtonian fluid , power law fluid , swell , non newtonian fluid , shear thinning , surface tension , mechanics , herschel–bulkley fluid , materials science , rheology , shear (geology) , shear rate , physics , composite material , thermodynamics , extrusion
As a part of continuous study, annular extrudate swell phenomena was investigated using a finite element method. For a Newtonian fluid, gravitational force and surface tension effects are considered. For non‐Newtonian fluids, power‐law fluid and second‐order fluid were considered. Some interesting results were found for non‐Newtonian fluids. For highly shear thinning fluid, thickness was contracted instead of swelling. For second‐order fluid, the analysis was confined only to weak elastic fluid. Explanations are presented for high Weisenberg number problems.