Metallurgical and Materials Transactions B

, Volume 37, Issue 5, pp 763–772 | Cite as

Modeling of slag eye formation over a metal bath due to gas bubbling

  • Krishnakumar Krishnapisharody
  • Gordon A. Irons


When gas is bubbled through a molten metal, overlying slag is pushed to the side forming an open “eye” of exposed metal. Eye sizes were measured in room-temperature modeling over a wide range of conditions including the fluids to simulate slag and metal, gas flow rates, and depths of both fluids. A mechanistic model for eye size was developed from fundamental fluid flow considerations. The model expresses a dimensionless eye area in terms of a density ratio of the fluids and a Froude number. The model is consistent with the present experimental results and those of others in different liquid systems. Finally, previously published correlations for eye size have been critically evaluated.


Material Transaction Froude Number Density Ratio Iron Steel Inst Bath Surface 
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Copyright information

© ASM International & TMS-The Minerals, Metals and Materials Society 2006

Authors and Affiliations

  • Krishnakumar Krishnapisharody
    • 1
  • Gordon A. Irons
    • 1
  1. 1.the Steel Research CentreMcMaster UniversityHamiltonCanada

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