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Natural Convection During Directional Solidification of a Binary Mixture  

Hwang, In Gook (Department of Chemical and Biochemical Engineering, The University of Suwon)
Choi, Chang Kyun (School of Chemical and Biological Engineering, Seoul National University)
Publication Information
Korean Chemical Engineering Research / v.47, no.2, 2009 , pp. 174-178 More about this Journal
Abstract
A mushy layer of dendritic crystals is often formed during solidification of a binary mixture. Natural convection in the mushy layer is analyzed by using the propagation theory we have developed. The critical Rayleigh numbers for the onset of convection are evaluated numerically using the self-similar stability equations based on Emms and Fowler's model. The present results approach those from quasi-static stability analysis in the limit of a large superheat or a small growth rate of the mushy layer.
Keywords
Propagation Theory; Natural Convection; Solidification; Mushy Layer;
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Times Cited By KSCI : 3  (Citation Analysis)
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