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Numerical approach of grinding process in a stirred media mill

Gers, Romain and Climent, Eric and Legendre, Dominique and Anne-Archard, Dominique and Frances, Christine Numerical approach of grinding process in a stirred media mill. (2007) In: Symposium PARTEC2007, 29-31 Mar 2007, Nuremberg, Germany .

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Official URL: http://www.partec2007.de

Abstract

Producing nanoparticles in dense suspensions can be achieved in a stirred media mill. However the mechanism of fragmentation in the mill is still not well understood and the process remains laborious because of the considerable energy needed. We focus on the numerical analysis of the global hydrodynamics in the mill for determining the parameters which control the efficiency of the collisions between grinding beads (impact velocities and orientation of the collision). The suspension flow is modelled with effective physical properties. We solve directly the Navier-Stokes equations in an axisymmetric two-dimensional domain. Then, we select some particular impact configurations of two spherical beads and simulate the flow motion during the film drainage.

Item Type:Conference or Workshop Item (Paper)
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
French research institutions > Centre National de la Recherche Scientifique - CNRS
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Deposited By: Hélène Dubernard
Deposited On:13 Nov 2008 09:54

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