Formation of uniformly sized metal droplets from a capillary jet by electromagnetic force

S. Shimasaki, S. Taniguchi

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


A new method for producing uniformly sized metal droplets is proposed. In this method, an intermittent electromagnetic pinch force is applied to a capillary jet of liquid metal to generate fluctuations of equal interval on the surface of the jet. As the fluctuations grow, the liquid metal jet breaks into small droplets whose size depends on the frequency of the intermittent electromagnetic pinch force. The breakup of the capillary jet is numerically simulated by performing multiphase fluid flow analysis with surface tracking (volume of fluid method) and electromagnetic force analysis. The simulation results agree well with the results of model experiments. The jet breaks up into uniformly sized droplets when the frequency of the intermittent force equals the frequency that corresponds to the natural disturbance wavelength of the capillary jet.

Original languageEnglish
Pages (from-to)1571-1580
Number of pages10
JournalApplied Mathematical Modelling
Issue number4
Publication statusPublished - 2011 Apr


  • Breakup
  • Capillary jet
  • Droplet formation
  • Electromagnetic force
  • Metal particle

ASJC Scopus subject areas

  • Modelling and Simulation
  • Applied Mathematics


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