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Modelling the cold crucible pouring dynamics

Modelling the cold crucible pouring dynamics

Bojarevics, Valdis and Pericleous, Kyriacos A ORCID: 0000-0002-7426-9999 (2019) Modelling the cold crucible pouring dynamics. In: Proceedings of the Liquid Metal Processing & Casing Conference 2019. The Minerals Materials & Metals Society (TMS), UK, pp. 487-495. ISBN 0-87339-771-1

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Abstract

The paper uses the mathematical modelling technique to investigate cold crucible operation with a non-consumable nozzle made of copper segments. The combination of two coils, one for the main crucible and the other for the nozzle with different power supplies, requires to superpose the effects of the two independent AC electromagnetic force fields. This leads to complex transitional flow structures and turbulence of the melt, contributing to the melt shape dynamics and the heat loss to the walls to satisfy the narrow balance between the thin solidified protective layer while avoiding the blockage of the outflow if the nozzle is frozen. The sensitivity of the outflow to the nozzle diameter is investigated. The beneficial features of the cold crucible melting to purify the melt from particulate contamination are explained using the particle tracking during the pouring process.

Item Type: Conference Proceedings
Title of Proceedings: Proceedings of the Liquid Metal Processing & Casing Conference 2019
Uncontrolled Keywords: titanium alloys, cold crucible, electromagnetic mixing, melting, particle tracking
Subjects: 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)
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: 13 Sep 2019 10:19
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/25205

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