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Numerical simulation of free surface behaviour of a molten liquid metal droplet with and without electromagnetic induction

Numerical simulation of free surface behaviour of a molten liquid metal droplet with and without electromagnetic induction

Bardet, Benoit, Bojarevics, Valdis, Pericleous, Kyriacos A and Etay, Jacqueline (2006) Numerical simulation of free surface behaviour of a molten liquid metal droplet with and without electromagnetic induction. Proceedings of the 5th International Symposium on Electromagnetic Processing of Materials. The Iron and Steel Institute of Japan, Tokyo, pp. 306-310. ISBN 978-4-930980-55-7

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Abstract

Electromagnetic levitation of electrically conductive droplets by alternating magnetic fields is a technique used to measure the physical properties of liquid metallic alloys such as surface tension or viscosity. Experiments can be conducted under terrestrial conditions or in microgravity, to reduce electromagnetic stirring and shaping of the droplet. Under such conditions, the time-dependent behaviour of a point of the free surface is recorded. Then the signal is analysed considering the droplet as a harmonic damped oscillator. We use a spectral code, for fluid flow and free surface descriptions, to check the validity of this assumption for two cases. First when the motion inside the droplet is generated by its initial distortion only and second, when the droplet is located in a uniform magnetic field originating far from the droplet. It is found that some deviations exist which can lead to an overestimate of the value of viscosity.

Item Type: Book Section
Additional Information: Originally presented at the 5th International Symposium on Electromagnetic Processing of Materials, Sendai, Japan October 2006.
Uncontrolled Keywords: electromagnetic levitation, spectral code, free surface, induction
Subjects: Q Science > QA Mathematics
T Technology > TN Mining engineering. Metallurgy
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:
Last Modified: 14 Oct 2016 09:02
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
URI: http://gala.gre.ac.uk/id/eprint/973

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