Numerical modeling of three-dimensional polymer melt flow in a cooling extruder.
Published: 2006
Language: eng
Number of pages: 100
ISBN-13: 9780494161715
Description: The geometry of the cooling extruder in a tandem extrusion system is one of the most important factors influencing polymer melt consistency. Understanding momentum and energy transport may help to improve the geometry of a cooling extruder. The objective of this study, was to implement a numerical methodology to model the momentum transport of polymer melt flowing in a cooling extruder.A numerical technique for solving the momentum equations for non-Newtonian fluid was developed. A finite element algorithm was used to solve the governing equations. A power-law model was used to describe the non-Newtonian behavior of the fluid. The simulation of the polymer melt flow was performed based on a moving barrel formulation. A periodic inlet/outlet boundary condition was used to model fully developed flow. A variety of tests were performed to validate the simulation technique, and the effects of polymer properties on melt flow behavior were studied.
Notes: Source: Masters Abstracts International, Volume: 44-06, page: 2984.

Thesis (M.A.Sc.)--University of Toronto, 2006.

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