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Melt Conveying in Single-Screw Extruders: Modeling and Simulation

1
Competence Center CHASE GmbH, Altenbergerstrasse 69, 4040 Linz, Austria
2
Institute of Polymer Processing and Digital Transformation, Johannes Kepler University Linz, 4040 Linz, Austria
3
Polymer Engineering Center, Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, WI 53715, USA
*
Author to whom correspondence should be addressed.
Academic Editors: Patrick Ilg and Alexander Malkin
Polymers 2022, 14(5), 875; https://doi.org/10.3390/polym14050875
Received: 27 January 2022 / Revised: 18 February 2022 / Accepted: 21 February 2022 / Published: 23 February 2022
(This article belongs to the Special Issue Theoretical Calculation and Simulation of Polymer)
Numerous analyses have modeled the flow of polymer melts in the melt-conveying zones of single-screw extruders. While initial studies mainly provided exact analytical results for combined drag and pressure flows of Newtonian fluids, more recently developed, numerical methods seek to deepen the understanding of more realistic flow situations that include shear-thinning and non-isothermal effects. With the advent of more powerful computers, considerable progress has been made in the modeling and simulation of polymer melt flows in single-screw extruders. This work reviews the historical developments from a methodological point of view, including (1) exact analytical, (2) numerical, and (3) approximate methods. Special attention is paid to the mathematical models used in each case, including both governing flow equations and boundary conditions. In addition, the literature on leakage flow and curved-channel systems is revisited. View Full-Text
Keywords: modeling and simulation; melt conveying; single-screw extruders; polymer processing modeling and simulation; melt conveying; single-screw extruders; polymer processing
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MDPI and ACS Style

Marschik, C.; Roland, W.; Osswald, T.A. Melt Conveying in Single-Screw Extruders: Modeling and Simulation. Polymers 2022, 14, 875. https://doi.org/10.3390/polym14050875

AMA Style

Marschik C, Roland W, Osswald TA. Melt Conveying in Single-Screw Extruders: Modeling and Simulation. Polymers. 2022; 14(5):875. https://doi.org/10.3390/polym14050875

Chicago/Turabian Style

Marschik, Christian, Wolfgang Roland, and Tim A. Osswald. 2022. "Melt Conveying in Single-Screw Extruders: Modeling and Simulation" Polymers 14, no. 5: 875. https://doi.org/10.3390/polym14050875

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