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Study of dendrite growth in a rotational flow field

Karagadde, Shyamprasad and Bhattacharya, Anirban and Tomar, Gaurav and Dutta, Pradip (2011) Study of dendrite growth in a rotational flow field. In: 21st National and 10th ISHMT-ASME Heat and Mass Transfer Conference, December 27-30, 2011, Indian Institute of Technology Madras, Chennai, India.

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Abstract

A numerical model to study the growth of dendrites in a pure metal solidification process with an imposed rotational flow field is presented. The micro-scale features of the solidification are modeled by the well-known enthalpy technique. The effect of flow changing the position of the dendrite is captured by the Volume of Fluid (VOF) method. An imposed rigid-body rotational flow is found to gradually transform the dendrite into a globular microstructure. A parametric study is carried out for various angular velocities and the time for merger of dendrite arms is compared with the order estimate obtained from scaling.

Item Type: Conference Proceedings
Additional Information: Copyright of this article belongs to ASME.
Department/Centre: Division of Mechanical Sciences > Mechanical Engineering
Depositing User: Anirban Bhattacharya
Date Deposited: 07 Aug 2013 06:33
Last Modified: 07 Aug 2013 06:34
URI: http://eprints.iisc.ac.in/id/eprint/46936

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