Title: Modelling the gas-liquid flow in an ironmaking blast furnace

Authors: A.B. Yu, G.X. Wang, S.J. Chew, P. Zulli

Addresses: Centre for Simulation and Modelling of Particulate Systems, School of Materials Science and Engineering, University of New South Wales, Sydney, NSW 2052, Australia. ' Centre for Simulation and Modelling of Particulate Systems, School of Materials Science and Engineering, University of New South Wales, Sydney, NSW 2052, Australia. ' BHP Steel Research Laboratories, P.O. Box 202, Port Kembla, NSW 2505, Australia. ' BHP Steel Research Laboratories, P.O. Box 202, Port Kembla, NSW 2505, Australia '

Abstract: A mathematical model is presented to describe the discrete flow of liquid within and below the blast furnace cohesive zone. The model is developed based on a force balance approach to describe the liquid flow and a stochastic treatment to take into account the complex packing structure. The interaction between gas and liquid flows has been included in the governing equations, so that the localised liquid flow in a packed bed can be modelled with or without gas flow. The validity is demonstrated by comparing model predictions and measurements obtained under different gas and/or liquid flow conditions. Application of the model to blast furnace is discussed with reference to the interaction between gas and liquid phases and the effect of cohesive zone shape.

Keywords: blast furnace; multiphase flow; porous media; mathematical model.

DOI: 10.1504/PCFD.2004.003787

Progress in Computational Fluid Dynamics, An International Journal, 2004 Vol.4 No.1, pp.29 - 38

Published online: 24 Dec 2003 *

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