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Simulation of intensity of segregation distributions using three‐dimensional fem analysis: Application to corotating twin screw extrusion processing
Author(s) -
Lawal Adeniyi,
Kalyon Dilhan M.
Publication year - 1995
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.1995.070580912
Subject(s) - extrusion , tracer , intensity (physics) , flow (mathematics) , residence time distribution , mechanics , mixing (physics) , finite element method , residence time (fluid dynamics) , tracking (education) , materials science , physics , thermodynamics , geology , composite material , optics , psychology , pedagogy , geotechnical engineering , quantum mechanics , nuclear physics
The corotating twin screw extrusion flow is simulated to generate the distributions of intensity of segregation and integral measures of mixing and forwarding. The simulation focused on the lenticular kneading disk elements that necessitated the application of a three‐dimensional finite element method to solve the conservation equations. The intensity of segregation distributions were determined by introducing a tracer blob numerically and tracking the concentration of the tracer particles as a function of location and time. In spite of the chaotic nature of the dynamics of this flow, the analyses provided the broad features of twin extrusion flow and its ability to mix. The processing characteristics of kneading disks were found to depend on the stagger angle and complemented earlier numerical and experimental results on residence time distributions and color incorporated tracer analyses. © 1995 John Wiley & Sons, Inc.