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Effect of shrinkage induced flow on binary alloy dendrite growth: An equivalent undercooling model

Bhattacharya, Anirban and Dutta, Pradip (2014) Effect of shrinkage induced flow on binary alloy dendrite growth: An equivalent undercooling model. In: INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 57 . pp. 216-220.

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Official URL: http://dx.doi.org/ 10.1016/j.icheatmasstransfer.20...

Abstract

This paper presents a theoretical model for studying the effects of shrinkage induced flow on the growth rate of binary alloy dendrites. An equivalent undercooling of the melt is defined in terms of ratio of the phase densities to represent the change in dendrite growth rate due to variation in solutal and thermal transport resulting from shrinkage induced flow. Subsequently, results for dendrite growth rate predicted by the equivalent undercooling model is compared with the corresponding predictions obtained using an enthalpy based numerical method for dendrite growth with shrinkage. The agreement is found to be good. Published by Elsevier Ltd.

Item Type: Journal Article
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Additional Information: Copy right for this article belongs to the PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
Keywords: Dendrite growth rate; Shrinkage flow; Undercooling; Enthalpy method
Department/Centre: Division of Mechanical Sciences > Mechanical Engineering
Date Deposited: 20 Nov 2014 04:38
Last Modified: 20 Nov 2014 04:38
URI: http://eprints.iisc.ernet.in/id/eprint/50306

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