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Fundamentals of Global Modeling for Polymer Extrusion

1
Polymer Processing Department, Faculty of Production Engineering, Warsaw University of Technology, 02-524 Warsaw, Poland
2
Politech Ltd., 86-031 Bydgoszcz, Poland
*
Author to whom correspondence should be addressed.
Polymers 2019, 11(12), 2106; https://doi.org/10.3390/polym11122106
Received: 25 October 2019 / Revised: 3 December 2019 / Accepted: 13 December 2019 / Published: 15 December 2019
A review paper is presented on modeling for polymer extrusion for both single screw and twin-screw extrusion. An issue of global modeling is discussed, which includes modeling for solid conveying, melting, melt flow, and co-operation of the screw/die system. The classical approach to global modeling of the extrusion process, which is based on separate models for each section of the screw, i.e., solid transport section, melting and pre-melting sections, and the melt flow section is presented. In this case, the global model consists of the elementary models. A novel continuous concept of global modeling based on CFD (Computational Fluids Dynamics) computations is also presented, and a concept of using the DEM (Discrete Element Method) computation coupled with CFD computations is discussed. View Full-Text
Keywords: polymers; extrusion; modeling polymers; extrusion; modeling
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MDPI and ACS Style

Wilczyński, K.; Nastaj, A.; Lewandowski, A.; Wilczyński, K.J.; Buziak, K. Fundamentals of Global Modeling for Polymer Extrusion. Polymers 2019, 11, 2106.

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