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Numerical simulation and experimental verification of nonisothermal flow in counter‐rotating nonintermeshing continuous mixers
Author(s) -
Ishikawa Takeshi,
Kihara ShinIchi,
Funatsu Kazumori,
Amaiwa Teruo,
Yano Kazunori
Publication year - 2000
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.11170
Subject(s) - materials science , mixing (physics) , computer simulation , mechanics , flow (mathematics) , newtonian fluid , mechanical engineering , finite element method , static mixer , volumetric flow rate , thermodynamics , composite material , viscosity , engineering , physics , quantum mechanics
We have developed non‐Newtonian and nonisothermal flow simulation codes in twin screw extruders using the finite element method. These codes can simulate the fully filled part of several kinds of screw elements, such as full flight screws, kneading discs, rotors, and their combinations. In this paper, we describe how we applied them to simulate a counter‐rotating nonintermeshing continuous mixer, LCM100G, by Kobe Steel, Ltd. The LCM100G is a Farrel‐type continuous mixer that has two mixing stages. We focused on the second mixing stage, since the flow domain of this stage is almost filled by polymer melts. Numerical simulations at various flow rates were performed. We also carried out experimental observations to verify the numerical simulations. Pressure and temperature profiles from the simulations were found to be in good agreement with the experimental results.