Kao, A. ORCID: 0000-0002-6430-2134, Cai, B., Lee, P. D. and Pericleous, K. ORCID: 0000-0002-7426-9999 (2016) The effects of Thermoelectric Magnetohydrodynamics in directional solidification under a transverse magnetic field. Journal of Crystal Growth, 457:1. pp. 270-274. ISSN 0022-0248 (doi:https://doi.org/10.1016/j.jcrysgro.2016.07.003)

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Abstract

The mechanism of macrosegregation and modification to dendrite size and spacing from a transverse magnetic field has been modelled through direct numerical simulation. The primary driver for this mechanism was identified as a strong Lorentz force formed in the interdendritic region, which leads to a large scale flow circulation. The microstructure evolution is modified by convective transport of solute and the predicted morphological features compare favourably to experimental data in the literature. The numerical results also give an insight into the magnitude of flow velocities within the interdendritic region.

Item Type:	Article
Uncontrolled Keywords:	Directional solidification; Crystal structure; Mass transfer; Magnetic fields; Thermoelectric currents
Subjects:	Q Science > Q Science (General) Q Science > QA Mathematics
Faculty / School / Research Centre / Research Group:	Faculty of Engineering & Science > Centre for Numerical Modelling & Process Analysis (CNMPA) > Computational Science & Engineering Group (CSEG) Faculty of Engineering & Science > School of Computing & Mathematical Sciences (CMS) Faculty of Engineering & Science
Last Modified:	04 Mar 2022 13:07
URI:	http://gala.gre.ac.uk/id/eprint/16738

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