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Multiphysics modeling of an induction-stirred ladle in two and three dimensions
Carbonate Research Shell International Exploration and Production, Rijswijk, Netherlands.
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Applied Process Metallurgy.
2012 (English)In: International Journal for Numerical Methods in Fluids, ISSN 0271-2091, E-ISSN 1097-0363, Vol. 70, no 11, 1378-1392 p.Article in journal (Refereed) Published
Abstract [en]

A unified model of an induction-stirred ladle in two and three dimensions is presented. Induction stirring of molten steel is a coupled multiphysics phenomena involving electromagnetic and fluid flow. Models presented in this paper gives a more accurate description of the real stirring conditions and flow pattern by taking into account the multiphysics behavior of the induction-stirring process in an induction-stirred ladle. This paper presents formulation of coupled electromagnetic and fluid flow equations. The coupled electromagnetic and fluid flow equations are solved with the use of the finite element method in two and three dimensions. The model is used to predict values of steel velocities and magnetic flux density. The model is also used to predict the effect of increased current density on flow velocity. Magnetic flux density values obtained from the model are verified against the experimental values.

Place, publisher, year, edition, pages
2012. Vol. 70, no 11, 1378-1392 p.
Keyword [en]
induction ladle, electromagnetic, Lorents forces, magnetic stirrer, magnetic diffusion, Navier-Stokes, FEM
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-97894DOI: 10.1002/fld.2749ISI: 000310478500003Scopus ID: 2-s2.0-84868118366OAI: oai:DiVA.org:kth-97894DiVA: diva2:534126
Note

QC 20121203

Available from: 2012-06-15 Created: 2012-06-15 Last updated: 2017-12-07Bibliographically approved
In thesis
1. Modeling of induction stirred ladles
Open this publication in new window or tab >>Modeling of induction stirred ladles
2012 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

Over the years numerous computational fluid dynamics models have been developed in order to study the fluid flow in gas and induction stirred ladles. These models are used to gain insight in the industrial processes used in ladle treatment of steel. A unified model of an induction stirred Ladle in two and three dimensions is presented. Induction stirring of molten steel is a coupled multi-physics phenomena involving electromagnetic and fluid flow. Models presented in this thesis gives a more accurate description of the real stirring conditions and flow pattern, by taking into account the multi-physics behavior of the induction stirring process in an induction stirred ladle. This thesis presents a formulation of coupled electromagnetic and fluid flow equations. The coupled electromagnetic and fluid flow equations are solved using the finite element method in two and three-dimensions. The simulation model is used to predict values of steel velocities and magnetic flux density. The simulation model is also used to predict the effect of increased current density on flow velocity. Magnetic flux density values obtained from the model are verified against experimental values.

 

Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2012. 34 p.
Keyword
induction ladle, electromagnetic, Lorentz forces, magnetic stirrer, magnetic diffusion, Navier-Stokes, FEM
National Category
Engineering and Technology
Identifiers
urn:nbn:se:kth:diva-97895 (URN)978-91-7501-324-4 (ISBN)
Presentation
2012-06-15, Sal M127, KTH, Brinellvägen 23, Stockholm, 09:00 (English)
Opponent
Supervisors
Note
QC 20120615Available from: 2012-06-15 Created: 2012-06-15 Last updated: 2012-06-15Bibliographically approved

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