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The effects of Thermoelectric Magnetohydrodynamics in directional solidification under a transverse magnetic field

The effects of Thermoelectric Magnetohydrodynamics in directional solidification under a transverse magnetic field

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 / Department / Research Group: Faculty of Architecture, Computing & Humanities
Faculty of Architecture, Computing & Humanities > Centre for Numerical Modelling & Process Analysis (CNMPA) > Computational Science & Engineering Group (CSEG)
Faculty of Architecture, Computing & Humanities > Department of Mathematical Sciences
Last Modified: 02 Mar 2019 15:53
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
Selected for GREAT 2019: None
URI: http://gala.gre.ac.uk/id/eprint/16738

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