A Methodology for Modeling Electromagnetic Confinement Systems: Application to Levitation Melting

  • Nagy El-Kaddah
  • Thinium T. Natarajan
Conference paper


A modeling strategy is presented for computing the electromagnetic field and the shape of the molten metal in electromagnetic confinement systems. This strategy involves the use of a hybrid finite element/integral technique to calculate the electromagnetic field and force distribution in the melt. The free surface shape is determined from minimization of electromagnetic, gravitational and surface tension energies using the Lagrange method of multipliers. This approach was applied to model the electromagnetic levitation melting process. The model was found to accurately predict the measured shape of levitated droplets.


Electromagnetic confinement Modeling Finite element method Levitation melting 


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Copyright information

© TMS (The Minerals, Metals & Materials Society) 2014

Authors and Affiliations

  • Nagy El-Kaddah
    • 1
  • Thinium T. Natarajan
    • 2
  1. 1.Dept. of Metallurgical and Materials EngineeringThe University of AlabamaTuscaloosaUSA
  2. 2.United States Steel Corporation Research & Technology CenterMunhallUSA

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