Pericleous, Koulis A. ORCID: https://orcid.org/0000-0002-7426-9999, Djambazov, Georgi ORCID: https://orcid.org/0000-0001-8812-1269, Bojarevics, Valdis ORCID: https://orcid.org/0000-0002-7326-7748 and Ward, R.M. (2009) A unified 3D model of the VAR process. In: Lee, Peter D., Mitchell, Alec and Williamson, Rod, (eds.) International Symposium on Liquid Metal Processing and Casting - LMPC 2009. The Minerals, Metals & Materials Society, Warrendale, Pennsylvania, USA, pp. 21-28. ISBN 978-0-87339-743-8

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Abstract

A 3D time-dependent model of the VAR process has been developed using CFD techniques. The model solves the coupled field equations for fluid flow, heat transfer (including phase change) and electromagnetic field, for both the electrode and the ingot. The motion of the electic arc 'preferred spot' can be specified based on observations. Correlations are sought between the local gap height, resulting from instantaneous liquid pool surface shape and electrode tip shape, and the arc motion. The detailed behaviour of the melting film on the electrode tip is studies using a spectral free surface technique, which allows investigation of the drops' detachment and drip shorts.

Item Type:	Book Section
Additional Information:	This paper forms part of the Proceedings from the International Symposium on Liquid Metal Processing and Casting - LMPC 2009, held 20-23 September 2009, in Santa Fe, New Mexico, USA. The Proceedings are available for purchase on CD ROM format from the publisher.
Uncontrolled Keywords:	VAR, MHD flow, melting/solidification, magnetic fields
Subjects:	T Technology > TS Manufactures T Technology > TN Mining engineering. Metallurgy Q Science > QA Mathematics
Pre-2014 Departments:	School of Computing & Mathematical Sciences School of Computing & Mathematical Sciences > Centre for Numerical Modelling & Process Analysis School of Computing & Mathematical Sciences > Centre for Numerical Modelling & Process Analysis > Computational Science & Engineering Group School of Computing & Mathematical Sciences > Department of Computer Systems Technology School of Computing & Mathematical Sciences > Department of Mathematical Sciences
Related URLs:	Publisher Organisation
Last Modified:	27 Apr 2020 22:56
URI:	http://gala.gre.ac.uk/id/eprint/1489

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