Electromagnetic and fluid flow phenomena in a mercury model system of the electromagnetic casting of aluminum |
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Authors: | J L Meyer J Szekely N El-Kaddah C Vivès R Ricou |
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Affiliation: | (1) CEGEDUR-PECHINEY Research Center, Casting and Foundry Department, at Voreppe, France;(2) Department of Metallurgical Engineering, University of Alabama at Tuscaloosa, Tuscaloosa, USA;(3) Centre Universitaire, 33 rue Louis Pasteur, Avignon, France |
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Abstract: | A mathematical formulation has been developed to represent the electromagnetic force field and the velocity field in the melt
for the electromagnetic casting of aluminum. The theoretical predictions based on fundamental considerations are compared
with experimental measurements obtained on a physical model system. The measurements and predictions were found to be in good
agreement, regarding both the velocity fields and the electromagnetic force fields. The principal conclusion emerging from
this work is of critical importance in achieving the dual objective, that is providing a restraining force, while minimizing
the melt velocity perpendicular to the free surface. The mathematical formulation presented in the paper provides the theoretical
framework for quantitatively defining these conditions in terms of the coil and the shield parameters.
J.L. Meyer, formerly with the Department of Materials Science and Engineering at Massachusetts Institute of Technology
N. EL-KADDAH, formerly with the Department of Materials Science and Engineering at MIT |
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