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Please use this identifier to cite or link to this item: http://bura.brunel.ac.uk/handle/2438/1798

Title: Numerical analysis of the hydrodynamic behaviour of immiscible metallic alloys in twin-screw rheomixing process
Authors: Tang, H
Wrobel, L C
Fan, Z
Keywords: Immiscible alloys
rheomixing process
VOF
shear-induced turbulent flow
twin-screw extruder
optimisation
Publication Date: 2006
Publisher: Elsevier
Citation: Materials & Design, Volume 27, Pages 1065-1075.
Abstract: A numerical analysis by a VOF method is presented for studying the hydrodynamic mechanisms of the rheomixing process by a twin-screw extruder (TSE). The simplified flow field is established based on a systematic analysis of flow features of immiscible alloys in TSE rheomixing process. The studies focus on the fundamental microstructure mechanisms of rheological behaviour in shear-induced turbulent flows. It is noted that the microstructure of immiscible alloys in the mixing process is strongly influenced by the interaction between droplets, which is controlled by shearing forces, viscosity ratio, turbulence, and shearing time. The numerical results show a good qualitative agreement with the experimental results, and are useful for further optimisation design of prototypical rheomixing processes.
URI: http://bura.brunel.ac.uk/handle/2438/1798
ISSN: 0261-3069
Appears in Collections:School of Engineering and Design Research papers
Materials Engineering
Mechanical and Aerospace Engineering

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