Analysis of fluid flow in a stirred reverberatory furnace with different impellers, by physical and numerical modeling
DOI:
https://doi.org/10.3989/revmetalm.0906Keywords:
Aluminum refining, Turbulent multiphase flow, Mathematical modeling, Physical modelingAbstract
A fluid flow analysis and particle trajectory in a 5 t molten capacity scaled 1:2 model of a reverberatory furnace was performed using both physical and numerical simulation. The design of the system allowed studying the behavior of the liquid in a system agitated by impellers. The parameters studied were, rotating speed, shape and height of the impeller. The physical and numerical simulations were used to determine circulation and mixing times, fluid flow patterns and velocity profiles in the agitation and melting chambers. Using experimental data, it was possible to establish the interaction between turbulent flow and circulating solid particles. The original design of the reverberatory furnace was modified based on the physical and numerical simulation analysis. The new design showed an increased magnesium removal rate by means of a more efficient and faster mixing.
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