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Patterns of thermomagnetic convection caused by long- and short-wave modulation of the magnetic field

A. Lange - S. Odenbach

TU Dresden, Institute of Fluid Mechanics, Chair of Magnetofluiddynamics, 01062 Dresden, Germany

An analysis of the thermomagnetic convection in a horizontal layer of magnetic fluid subjected to a spatially and symmetrical modulated magnetic field is presented. Both the magnetic field and the temperature gradient are oriented vertically. The base state is a convective one formed by a double vortex, which reflects the symmetrical modulation and appears for any nonzero magnetic field. Depending on the type of modulation, different shapes of convection rolls appear: either horizontally stretched convection rolls for long-wave modulations or circular shaped ones for short-wave modulations. Figs 3, Refs 11.

Magnetohydrodynamics 47, No. 2, 175-182, 2011 [PDF, 0.87 Mb]

Copyright: Institute of Physics, University of Latvia
Electronic edition ISSN 1574-0579
Printed edition ISSN 0024-998X