Influence of electromagnetic boundary conditions onto the onset of dynamo action in laboratory experiments

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Avalos-Zuniga, R.
Plunian, F.
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Abstract
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We study the onset of dynamo action of the Riga and Karlsruhe experiments with the addition of an external wall, the electro-magnetic properties of which being different from those of the fluid in motion. We consider a wall of different thickness, conductivity and permeability. We also consider the case of a ferro-fluid in motion.
Comment: 9 pages, 9 figures
Keywords
Physics - Fluid Dynamics, Physics - Geophysics
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