1998•International Polymer ProcessingRequires access

Fluid Mechanics of Intermeshing Counter-Rotating Twin Screw Extruders

M.-H. Hong, James L. White

Abstract

Abstract A simulation is presented of the flow and pumping behavior of an intermeshing counter-rotating twin screw extruder. The problem of incorporating the positive displacement characteristics of moving machine parts in a cylindrical coordinate Flow Analysis Network (FAN) analysis is presented. Screw pumping characteristic curves were determined for various elements of the Leistritz GG modular counter-rotating twin screw extruder for a Newtonian fluid. We discuss the analysis of composite modular counter-rotating twin screw extruders using these screw pumping characteristics.

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Available abstract

Key concepts: Positive displacement meter, Displacement (psychology), Materials science, Mechanical engineering, Screw pump, Mechanics, Flow (mathematics), Modular design