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Numerical Simulation of Polymer Solutions in a Single-Screw Extruder

Institute of Power Engineering and Advanced Technologies, FRC Kazan Scientific Center, Russian Academy of Sciences, 420111 Kazan, Russia
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Appl. Sci. 2019, 9(24), 5423; https://doi.org/10.3390/app9245423
Received: 28 October 2019 / Revised: 5 December 2019 / Accepted: 9 December 2019 / Published: 11 December 2019
(This article belongs to the Section Mechanical Engineering)
Single-screw extruders are the most common equipment used for polymer extrusion. The study of the hydrodynamics of a polymer melts flow in the extruder channel is the basis for modeling and understanding the extrusion process. In general form, the extruder includes a straight section with a screw installed in it. In this study, the three-dimensional mathematical modeling of the polymer solutions flow in the metering zone of a single-screw extruder is performed. The influences of the screw geometry (L/D2 = 1…3) on the flow structure and the pressure drop are analyzed under a speed rotation up to 60 rpm. Aqueous solutions of 0.5% polyacrylamide (0.5% PAA) and 1.5% sodium salt of carboxymethyl cellulose (1.5% CMC) are considered as the working fluid. View Full-Text
Keywords: shear-thinning fluid; single-screw extruder; hydrodynamics; Cross model; polymer solution shear-thinning fluid; single-screw extruder; hydrodynamics; Cross model; polymer solution
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Kadyirov, A.; Gataullin, R.; Karaeva, J. Numerical Simulation of Polymer Solutions in a Single-Screw Extruder. Appl. Sci. 2019, 9, 5423.

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