Bojarevics, Valdis ORCID: https://orcid.org/0000-0002-7326-7748, Roy, Alan and Pericleous, Koulis ORCID: https://orcid.org/0000-0002-7426-9999 (2011) Numerical model of electrode induction melting for gas atomization. COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, 30 (5). pp. 1455-1466. ISSN 0332-1649 (doi:10.1108/03321641111152612)

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Abstract

Purpose: The purpose of this paper is to create a numerical model of electrode induction melting process for the gas atomization (EIGA) and process and investigate the complex interaction of the electromagnetic and thermal fields on the fluid flow with free surface.
Design/methodology/approach: The modelling approach is based on the free surface code SPHINX which includes time dependent electromagnetic, thermal and fluid flow with free surface modelling and the commercial software COMSOL for investigating 3D electromagnetic effects.
Findings: The melting dynamics, liquid film formation and the outflow free surface behavior are predicted by SPHINX using an optimized geometry. Quasi-stationary AC electromagnetic solutions with COMSOL predict some 3D effects of the coil, including frequency dependent estimates of voltage, electric current and power.
Originality/value: The importance of magnetic forces controlling the free surface jet formation, partial semi-levitation and the outflow superheat is uncovered by numerical modelling tools. An optimized geometry is presented for the EIGA process.

Item Type:	Article
Additional Information:	[1] First published: 2011. [2] Electrical and Electronic Engineering, (2011), Vol. 30, (5), pp. 1455-1466. [3] Paper published in COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering (2011) Volume 30, Issue 5 - Special Issue: Selected papers from the Heating by Electromagnetic Sources Symposium 2010, HES 2010. Guest editor(s): Prof. Fabrizio Dughiero, Prof. Dr. Egbert Baake and Professor Michele Forzan.
Uncontrolled Keywords:	AC electrodynamics, free surface dynamics, induction melting, magnetohydrodynamics, mathematical modelling, titanium powder production
Subjects:	Q Science > QA Mathematics T Technology > TK Electrical engineering. Electronics Nuclear engineering
Pre-2014 Departments:	School of Computing & Mathematical Sciences School of Computing & Mathematical Sciences > Centre for Numerical Modelling & Process Analysis
Related URLs:	Publisher Organisation
Last Modified:	27 Apr 2020 22:57
URI:	http://gala.gre.ac.uk/id/eprint/6939

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