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Velocity measurements and concentration field visualizations in copper electrolysis under the influence of Lorentz forces and buoyancy

T. Weier , C. Cierpka , J. Hüller , G. Gerbeth

Forschungszentrum Rossendorf, P.O.~Box 51 01 19, 01314 Dresden, Germany

Abstract
Velocity measurements and shadowgraph visualizations for copper electrolysis under the influence of a magnetic field are reported. Experiments in a rectangular cell show the expected strong correlation between flow features and limiting current density. The flow can be understood as driven by the interplay of Lorentz force and buoyancy. For a cylindrical cell with only slightly non-parallel electric and magnetic field lines, the presence and importance of the Lorentz force is demonstrated by velocity measurements. Figs 6, Refs 13.

Magnetohydrodynamics 42, No. 4, 379-387, 2006 [PDF, 0.73 Mb]

Copyright: Institute of Physics, University of Latvia
Electronic edition ISSN 1574-0579
Printed edition ISSN 0024-998X
DOI: http://doi.org/10.22364/mhd