Forward and inverse problems in MHD: Numerical and experimental results

Forward and inverse problems in MHD: Numerical and experimental results

When a conducting fluid comes under the influence of a magnetic field, electrical currents are induced that give rise to a modification of this magnetic field. The ratio of induced magnetic field to applied magnetic field is characterized by the magnetic Reynolds number Rm of the flow. For large Rm,...

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Veröffentlicht in:Mitteilungen der Gesellschaft für Angewandte Mathematik und Mechanik 2007-04, Vol.30 (1), p.159-170
Hauptverfasser: Stefani, Frank, Gailitis, Agris, Gerbeth, Gunter, Gundrum, Thomas, Xu, Mingtian
Format: Artikel
Sprache:eng
Schlagworte:
dynamos
integral equations
inverse problem
Magnetohydrodynamics
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Zusammenfassung:When a conducting fluid comes under the influence of a magnetic field, electrical currents are induced that give rise to a modification of this magnetic field. The ratio of induced magnetic field to applied magnetic field is characterized by the magnetic Reynolds number Rm of the flow. For large Rm, even self‐excitation of a magnetic field can occur. This hydromagnetic dynamo effect is responsible for the maintenance of the magnetic fields of planets, stars and galaxies. In the present paper, we delineate some recent developments in the numerical treatment of induction effects in arbitrary geometry, and their application for dynamo experiments as well as for a “Contactless Inductive Flow Tomography (CIFT)”. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
ISSN:0936-7195
1522-2608
DOI:10.1002/gamm.200790005