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Numerical simulation of profile extrusion dies without flow separation
Author(s) -
Hurez P.,
Tanguy P. A.,
Blouin D.
Publication year - 1993
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760331506
Subject(s) - extrusion , materials science , pressure drop , power law fluid , mechanics , computer simulation , lubrication , finite element method , volumetric flow rate , flow (mathematics) , perpendicular , newtonian fluid , mechanical engineering , composite material , thermodynamics , engineering , geometry , mathematics , physics
Lubrication theory has been applied to solve flow problems in profile extrusion dies without flow separations, for Newtonian and power law type fluids. The method is based on velocity calculation within cross sections perpendicular to the flow. Pressure drop can also be obtained from a macroscopic balance, if the flow rate is known. Comparison of pressure drops in 2‐D and 3‐D geometries has been made with numerical simulation obtained by a finite element method. Results show a good accuracy of the proposed method.