Periodic disintegration and reconnection of magnetic fluid bridge by alternating magnetic field

Seiichi Sudo, Kazuya Takahashi, Hideya Nishiyama

Research output: Contribution to journalArticle

Abstract

This paper is concerned with the magnetic fluid surface instability produced by the external alternating magnetic field with lower strength amplitude. Periodic disintegration and reconnection of magnetic fluid bridge between two small permanent magnets were studied with a high-speed video camera analysis system. Disintegration and connection of the liquid bridge were generated by the external alternating magnetic field produced by the Helmholtz coil. The surface shape of magnetic fluid bridge was changed by the external field every moment. The details of surface phenomena on magnetic fluid bridge were revealed. The relation between the surface shape variation and the external magnetic field was discussed with the Bond numbers.

Original languageEnglish
Pages (from-to)129-136
Number of pages8
JournalInternational Journal of Applied Electromagnetics and Mechanics
Volume52
Issue number1-2
DOIs
Publication statusPublished - 2016 Jan 1

Keywords

  • Magnetic fluids
  • alternating magnetic field
  • ferrohydrodynamics
  • surface instability

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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