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Influence of a slow rotating magnetic field in thermoelectric magnetohydrodynamic processing of alloys

Influence of a slow rotating magnetic field in thermoelectric magnetohydrodynamic processing of alloys

Kao, Andrew ORCID: 0000-0002-6430-2134, Lee, Peter David and Pericleous, Koulis ORCID: 0000-0002-7426-9999 (2014) Influence of a slow rotating magnetic field in thermoelectric magnetohydrodynamic processing of alloys. ISIJ International, 54 (6). pp. 1283-1287. ISSN 0915-1559 (Print), 1347-5460 (Online) (doi:https://doi.org/10.2355/isijinternational.54.1283)

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Abstract

The effects of a slow rotating magnetic field on thermoelectric magnetohydrodynamics during alloy solidification were investigated using a micro-scale numerical model. For conventional directional solidifcation it was shown that in general the time-dependent acceleration force on the fluid flow is negligible. Using an undercooled growth model with directional solidification approximations the effect on dendritic morphology is predicted, suggesting thermoelectric induced flows will create a significant increase in secondary branching and preferential growth directions on one side of the primary trunk. The extent of macro-segregation under these conditions was also estimated.

Item Type: Article
Additional Information: [1] Copyright: (c) 2014 The Iron and Steel Institute of Japan. [2] Citation: Kao, Andrew, Lee, Peter David and Pericleous, Koulis (2014) Influence of a slow rotating magnetic field in thermoelectric magnetohydrodynamic processing of alloys. ISIJ International, 54 (6). pp. 1283-1287. ISSN 0915-1559 (Print), 1347-5460 (Online) (doi:10.2355/isijinternational.54.1283) [3] The definitive version is available at: https://www.jstage.jst.go.jp/article/isijinternational/54/6/54_1283/_article or http://dx.doi.org/10.2355/isijinternational.54.1283. [4] Acknowledgements (funding): The authors would like to acknowledge the EPSRC (EP/K011413/1, EP/K007734/1) for funding and PDL thanks the Research Complex at Harwell for financial, materials and facilities support (EP/I02249X/1). [5] ISIJ International is a monthly publication of the Iron and Steel Institute of Japan (ISIJ).
Uncontrolled Keywords: Thermoelectric magnetohydrodynamics; Rotating magnetic field; Directional solidification
Subjects: Q Science > QA Mathematics
Q Science > QC Physics
Faculty / Department / Research Group: Faculty of Architecture, Computing & Humanities
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
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Last Modified: 02 Mar 2019 15:53
Selected for GREAT 2016: GREAT b
Selected for GREAT 2017: None
Selected for GREAT 2018: None
Selected for GREAT 2019: None
URI: http://gala.gre.ac.uk/id/eprint/12008

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