Title: Lattice Boltzmann modelling of refractory-slag interaction

Authors: S. Arnout, F. Verhaeghe, B. Blanpain, P. Wollants

Addresses: Department of Metallurgy and Materials Engineering, Katholieke Universiteit Leuven, Belgium. ' Department of Metallurgy and Materials Engineering, Katholieke Universiteit Leuven, Belgium. ' Department of Metallurgy and Materials Engineering, Katholieke Universiteit Leuven, Belgium. ' Department of Metallurgy and Materials Engineering, Katholieke Universiteit Leuven, Belgium

Abstract: A model to simulate the dissolution of multi-phase solid structures of arbitrary shape in multi-component fluids is developed. The dissolution reaction is supposed to be congruent and diffusion-controlled. The model uses a multi-component Lattice Boltzmann scheme in combination with a volume-tracking scheme for the moving interfaces. Equilibrium concentrations are imposed on the interfaces using an off-grid boundary condition. The resulting diffusion flux determines the dissolution rate. The model is applied to the dissolution of a laminar multi-phase solid in a diffusion boundary layer, and to a simplified three-component refractory-slag system.

Keywords: Lattice Boltzmann modelling; dissolution; multi-phase structures; refractory; CFD; computational fluid dynamics; laminar multi-phase solids; diffusion boundary layers; refractory-slag systems.

DOI: 10.1504/PCFD.2007.013003

Progress in Computational Fluid Dynamics, An International Journal, 2007 Vol.7 No.2/3/4, pp.111 - 117

Published online: 03 Apr 2007 *

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