Title: 2-D Visualisation of the Flow of Non-wetting Liquid through a Packed Bed
Abstract: A number of studies have been carried out to describe the flow of liquids in packed beds but the non-wetting flow of liquid has received relatively little attention. Non-wetting flow is an important factor in modelling the flow of liquid iron and slag in the blast furnace lower zone where the liquid iron does not wet the coke. This paper reports results of visualisation of the flow of a non-wetting liquid through a 2-D array of regularly packed cylinders. A video technique is used to visualise the liquid flow patterns through the packed bed. Three major flow patterns are identified: rivulet, slug and droplet. The flow regimes depend on liquid fraction, liquid flow rate and height of packed bed. The maximum liquid actual velocity and the liquid distribution at the bottom of the packed bed are also measured using high speed video analysis. Water, mercury and glycerol are selected to examine the effect of physical properties on the liquid flow behaviours and actual velocity. By adding the visual dimension, this study contributes to better understanding of the flow behaviours of non-wetting liquid through a packed bed.
Publication Year: 1996
Publication Date: 1996-01-01
Language: en
Type: article
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