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Three‐dimensional flow simulation of a film‐casting process
Author(s) -
Sakaki Kazutaka,
Katsumoto Ryuichi,
Kajiwara Toshihisa,
Funatsu Kazumori
Publication year - 1996
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.10577
Subject(s) - materials science , mechanics , enhanced data rates for gsm evolution , flow (mathematics) , die (integrated circuit) , air gap (plumbing) , bead , isothermal process , finite element method , casting , computer simulation , composite material , mechanical engineering , thermodynamics , structural engineering , engineering , physics , nanotechnology , telecommunications
Three‐dimensional flow simulation of a film‐casting process was performed using a finite element method assuming an isothermal and steady Newtonian flow. The simulation was carried out under industrial operation conditions. The neck‐in and the edge bead phenomena could be simulated. The effects of draw ratio, air gap length, and die width on these phenomena are discussed. The neck‐in and the edge bead phenomena were affected by the draw ratio and air gap length and not by the die width. The neck‐in value, which was defined as the difference between the die width and film width at the chill roll, increased with the draw ratio and air gap length.