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Magnetic fluid with a spherical ferromagnetic body in a uniform magnetic field. Theory and experiment

D. Pelevina2 - V. Naletova2 - V. Bashtovoi1 - A. Motsar1 - A. Reks1

1 UNESCO Chair, Belorussian National Technical University, 65 Nezavisimosti Ave., Minsk, 220013, Belarus
2 Institute of Mechanics, Lomonosov Moscow State University, 1 Michurinskiy Pr., 119192, Moscow, Russia

The shape of a magnetic fluid free surface containing a spherical body with a magnetizable material in an applied uniform magnetic field is studied experimentally and theoretically. It is shown that a distortion of the applied uniform magnetic field by the spherical body leads to a deformation of the magnetic fluid free surface. The dependences of the free surface height on the magnetic field strength for different thicknesses of the magnetic fluid layer in a vertical and in a horizontal applied magnetic field were obtained. Jump-like changes of the magnetic fluid surface at critical values of the applied magnetic field are observed. Tables 1, Figs 7, Refs 2.

Magnetohydrodynamics 50, No. 1, 83-90, 2014 [PDF, 0.53 Mb]

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