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	Experimental studies and numerical model validation of overflowing 2D foam to test flotation cell crowder designs
	Cole, K.E. ; Brito-Parada, P.R. ; Xu, C. ; Neethling, S.J. ; Cilliers, J.J.
	2012
DOI	10.1016/j.cherd.2012.05.009
英文摘要	A computational fluid dynamics model of froth motion has been developed to assess different flotation cell designs. This work presents an implementation of the model in a 2D case, to compare the simulated bubble velocity distribution and streamlines to an experimental foaming system. The model uses finite elements to solve Laplace's equation for a potential function from which the foam velocity can be obtained. It requires the air recovery, or the amount of air that overflows a flotation cell as unburst bubbles, as an input parameter to calculate the foam velocity distribution and bubble streamlines. The air recovery was obtained by image analysis from a vertical, overflowing monolayer of foam (2D) created in a Hele-Shaw column, which mimicked important flowing properties of flotation froths such as coalescence. Inserts were included in the foam column to represent potential crowder designs for industrial flotation cells. Three different designs were chosen to compare the effect of insert depth and shape, including rectangles and a triangle. The effect of the insert design on the overflowing foam is obvious from visual assessment of the bubble streamlines and velocity distribution, which were closely agreed by both the experiment and model. ? 2012 The Institution of Chemical Engineers.; EI; 0; 12; 2196-2201; 90
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/262915]
专题	计算机科学技术研究所
推荐引用方式 GB/T 7714	Cole, K.E.,Brito-Parada, P.R.,Xu, C.,et al. Experimental studies and numerical model validation of overflowing 2D foam to test flotation cell crowder designs[J],2012.
APA	Cole, K.E.,Brito-Parada, P.R.,Xu, C.,Neethling, S.J.,&Cilliers, J.J..(2012).Experimental studies and numerical model validation of overflowing 2D foam to test flotation cell crowder designs..
MLA	Cole, K.E.,et al."Experimental studies and numerical model validation of overflowing 2D foam to test flotation cell crowder designs".(2012).

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