ISIJ International
Online ISSN : 1347-5460
Print ISSN : 0915-1559
ISSN-L : 0915-1559
Regular Article
Numerical Modelling of Inclusion Behaviour in a Gas-stirred Ladle
Valerio De FeliceIsmael Lis Alves DaoudBernard DussoubsAlain JardyJean-Pierre Bellot
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2012 Volume 52 Issue 7 Pages 1273-1280


The treatment of liquid metal in gas-stirred ladles has long been identified as the main process responsible for the inclusion cleanness in special steels. Four university teams and three steels developers have combined their efforts through a project, supported by French National Research Agency, in order to improve the understanding of the complex mechanisms involved during the ladle treatment. In this paper, the contribution of the Institut Jean Lamour to this program, that bears the acronym CIREM, is presented. Using a commercial CFD code as a basis, a three-dimensional simulation model is developed that includes the geometry and industrial operating conditions. The hydrodynamics of the turbulent metal/bubbles mixture is well represented along with the coupled mechanisms of transport, aggregation and surface entrapment of inclusions.

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© 2012 by The Iron and Steel Institute of Japan
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