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The influence of pole piece geometry on the lifespan of the stationary magnetic fluid seal.

Authors

  • Sofiya G. Sharyna БГУ
  • Mikhail S. Krakov BNTU, BSU

Keywords:

Diffusion, magnetophoresis, magnetic fluid, numerical methods, computer simulation.

Abstract

This paper presents the results of a numerical simulation of the diffusion and magnetophoresis problem in a magnetic fluid seal (MFS) in the standby mode. The study was performed for the two most common pole piece geometries: triangular and rectangular. The governing equations take into account the diffusion coefficient’s dependence on the concentration and a modified expression for the mobility of magnetic particles.

A comparison of the influence of pole piece geometry on the MFS lifespan was carried out. The lifespan of the MFS is considered to be the time during which the magnetic fluid in the gap of the MFS loses its fluidity.  The MFS lifespan for a triangular geometry is longer than for a rectangular one was determined. At the same time, the failure-free operation time of the MFS when using vacuum oil as the base fluid, depending on the MFS parameters, can range from a month to several years.

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Published

2025-11-03

Versions

Issue

No. 2 (2025): Journal of the Belarusian State University. Physics

Section

Condensed State Physics

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How to Cite

(1)
Sharyna, S. G.; Krakov, M. S. The Influence of Pole Piece Geometry on the Lifespan of the Stationary Magnetic Fluid Seal. Журнал Белорусского государственного университета. Физика 2025, No. 2.