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Computer‐aided analysis of a linearly tapered coat‐hanger die
Author(s) -
Liu TaJo,
Hong ChinNan,
Chen KunChou
Publication year - 1988
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.760282302
Subject(s) - die (integrated circuit) , flow (mathematics) , materials science , mechanical engineering , mechanics , engineering drawing , engineering , physics , nanotechnology
We describe the computer‐aided engineering analysis of a linearly tapered coat‐hanger die in this paper. The general governing equation for flow distribution inside the die was derived first. On the basis of this equation, we have developed the design formula for a die to deliver uniform flow. In addition, we have also examined the variations of lateral flow uniformities and residence time distributions of polymeric liquids under several different design and operating conditions: (1) using manifolds with non‐circular cross‐sections, (2) adjusting production widths, (3) delivering fluids with different viscosities, and (4) enlarging manifolds for practical production considerations.