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Surface Tension Measurement at High Temperatures by Using Numerical and Theoretical Drop Profiles

[+] Author Affiliations
A. Moradian, J. Mostaghimi

University of Toronto

Paper No. IMECE2005-81397, pp. 37-43; 7 pages
doi:10.1115/IMECE2005-81397
From:
  • ASME 2005 International Mechanical Engineering Congress and Exposition
  • Fluids Engineering
  • Orlando, Florida, USA, November 5 – 11, 2005
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 0-7918-4219-3 | eISBN: 0-7918-3769-6
  • Copyright © 2005 by ASME

abstract

Interfacial tension measurement is studied for the case of high melting point materials. Atmospheric radio-frequency Inductively Coupled Plasma (rf-ICP) is used as the high temperature heat source for the new containerless method. Dynamics of melting is compared with the numerical simulations by using an image analysis procedure. A numerical model solves the axisymetric Navier-Stokes equations for both the melt and the surrounding gas. Good agreement between the dynamics of the pendant drops of copper obtained by the experiments and the simulations. Therefore, reasonable surface tensions measured based on the method shows the applicability of the method to ceramics and alloys.

Copyright © 2005 by ASME

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