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Numerical and experimental investigation of three‐dimensional flow in extrusion dies
Author(s) -
Gupta Mahesh,
Jaluria Yogesh,
Sernas Valentinas,
Esseghir Mohamed,
Kwon Tai H.
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.760330704
Subject(s) - extrusion , pressure drop , materials science , die (integrated circuit) , finite element method , computer simulation , flow (mathematics) , mechanics , composite material , structural engineering , physics , engineering , nanotechnology
The univariant element, Q 1 P 0 , and the multivariant elements, Q 1 +P 0 and R 2 +P 0 , are compared for the numerical simulation of the flow in extrusion dies. The pressure distribution obtained by using the Q 1 P 0 element was found to be afflicted with the checkerboard pressure mode. On the other hand, the multivariant elements, Q 1 +P 0 and R 2 +P 0 , gave accurate and physically reasonable velocity and pressure distributions. The computed values of the pressure drop across extrusion dies matched well with the pressure drop determined experimentally.