The kneading section.(Three-Dimensional Flow Modeling of a Self-Wiping Corotating Twin-Screw Extruder, part 2): An article from: Polymer Engineering and Science

This digital document is an article from Polymer Engineering and Science, published by Society of Plastics Engineers, Inc. on April 15, 1996. The length of the article is 5227 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.

From the author: Three-dimensional flow simulations of kneading elements in an intermeshing corotating twin-screw extruder are performed by solving the Navier Stokes equations with a finite element package, Sepran. Instead of using the whole geometry of the 8-shaped barrel a simplified geometry is used, representing a large part of the geometry during the rotating action of the kneading paddle. The goal of these calculations is to study the dependence of several factors that influence mixing, such as shear rate, elongation rate, pressure, and the flow profile in the extruder on various extruder parameters, such as fluid viscosity, rotation speed, and throughput. The shear and elongation rate and the pressure drop are calculated for varying viscosities. The various stagger angles possible for disc configurations in the corotating twin-screw extruder are modeled. The axial backflow volume is calculated for varying values of rotation speed and throughput.

Citation Details
Title: The kneading section.(Three-Dimensional Flow Modeling of a Self-Wiping Corotating Twin-Screw Extruder, part 2)
Author: D.J. van der Wal
Publication:Polymer Engineering and Science (Refereed)
Date: April 15, 1996
Publisher: Society of Plastics Engineers, Inc.
Volume: v36 Issue: n7 Page: p912(13)

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