Melt Conveying in Single-Screw Extruders: Modeling and Simulation
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 under...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-02-01
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| Series: | Polymers |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4360/14/5/875 |
| _version_ | 1797474117789679616 |
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| author | Christian Marschik Wolfgang Roland Tim A. Osswald |
| author_facet | Christian Marschik Wolfgang Roland Tim A. Osswald |
| author_sort | Christian Marschik |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-09T20:25:37Z |
| format | Article |
| id | doaj.art-c56c300ef78e484c89d042a145252a28 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T20:25:37Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-c56c300ef78e484c89d042a145252a282023-11-23T23:37:36ZengMDPI AGPolymers2073-43602022-02-0114587510.3390/polym14050875Melt Conveying in Single-Screw Extruders: Modeling and SimulationChristian Marschik0Wolfgang Roland1Tim A. Osswald2Competence Center CHASE GmbH, Altenbergerstrasse 69, 4040 Linz, AustriaInstitute of Polymer Processing and Digital Transformation, Johannes Kepler University Linz, 4040 Linz, AustriaPolymer Engineering Center, Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, WI 53715, USANumerous 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.https://www.mdpi.com/2073-4360/14/5/875modeling and simulationmelt conveyingsingle-screw extruderspolymer processing |
| spellingShingle | Christian Marschik Wolfgang Roland Tim A. Osswald Melt Conveying in Single-Screw Extruders: Modeling and Simulation Polymers modeling and simulation melt conveying single-screw extruders polymer processing |
| title | Melt Conveying in Single-Screw Extruders: Modeling and Simulation |
| title_full | Melt Conveying in Single-Screw Extruders: Modeling and Simulation |
| title_fullStr | Melt Conveying in Single-Screw Extruders: Modeling and Simulation |
| title_full_unstemmed | Melt Conveying in Single-Screw Extruders: Modeling and Simulation |
| title_short | Melt Conveying in Single-Screw Extruders: Modeling and Simulation |
| title_sort | melt conveying in single screw extruders modeling and simulation |
| topic | modeling and simulation melt conveying single-screw extruders polymer processing |
| url | https://www.mdpi.com/2073-4360/14/5/875 |
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