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Dynamics of an axisymmetric electromagnetic 'crucible' melting

Dynamics of an axisymmetric electromagnetic 'crucible' melting

Bojarevics, V., Pericleous, K. ORCID: 0000-0002-7426-9999 and Cross, M. (1999) Dynamics of an axisymmetric electromagnetic 'crucible' melting. In: Alemany, A., Marty, Ph. and Thibault, J. P., (eds.) Transfer Phenomena in Magnetohydrodynamic and Electroconducting Flows: Selected papers of the PAMIR Conference held in Aussois, France 22–26 September 1997. Fluid Mechanics and Its Applications, 51 . Springer Netherlands, Netherlands, pp. 345-357. ISBN 978-94-010-6002-8 (doi:10.1007/978-94-011-4764-4)

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Abstract

Different industrial induction melting processes involve free surface and melt-solid interface of the liquid metal subject to dynamic change during the technological operation. Simulation of the liquid metal dynamics requires to solve the non-linear, coupled hydrodynamic-electromagnetic-heat transfer problem accounting for the time development of the liquid metal free boundary with a suitable turbulent viscosity model. The present paper describes a numerical solution method applicable for various axisymmetric induction melting processes, such as, crucible with free top surface, levitation, semi-levitation, cold crucible and similar melting techniques. The presented results in the cases of semi-levitation and crucible with free top surface meltings demonstrate oscillating transient behaviour of the free metal surface indicating the presence of gravity-inertial-electromagnetic waves which are coupled to the internal fluid flow generated by both the rotational and potential parts of the electromagnetic force.

Item Type: Book Section
Pre-2014 Departments: School of Computing & Mathematical Sciences
Last Modified: 14 Oct 2016 08:59
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
URI: http://gala.gre.ac.uk/id/eprint/67

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