Experiments on the magnetic damping of an inductively stirred liquid metal flow

This work is concerned with the stabilisation of both bulk liquid metal flow and free surface shape in inductively heated melts. Static magnetic fields in different orientation were used to damp the fluctuations generated by the alternating magnetic field of an induction heater. This superposition o...

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Bibliographic Details
Published in:Experiments in fluids 2006-02, Vol.40 (2), p.257-266
Main Authors: BOJAREVICS, A, CRAMER, A, GELFGAT, Yu, GERBETH, G
Format: Article
Language:English
Subjects:
Applied sciences
Computational fluid dynamics
Damping
Dampness
Devices using thermal energy
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Fluid flow
Fluids
Furnaces
Liquid metals
Magnetic fields
Melts
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Summary:This work is concerned with the stabilisation of both bulk liquid metal flow and free surface shape in inductively heated melts. Static magnetic fields in different orientation were used to damp the fluctuations generated by the alternating magnetic field of an induction heater. This superposition of a driving alternating with a braking static magnetic field was investigated experimentally in a low temperature isothermal model utilising a rectangular fluid volume in an induction-furnace-like setup fed by a current of intermediate frequency. Local velocity measurements in the liquid metal showed different damping characteristics for static fields aligned either normal or parallel to the melt surface.
ISSN:0723-4864
1432-1114
DOI:10.1007/s00348-005-0065-x