Mathematical modelling of a compressible oxygen jet interfacing with a free surface in a basic oxygen furnace for steel production
Pericleous, K., Lebon, B., Djambazov, G. and Patel, M. (2012) Mathematical modelling of a compressible oxygen jet interfacing with a free surface in a basic oxygen furnace for steel production. In: CFD Modeling and Simulation in Materials Processing. J. Wiley & Sons, Inc., USA, pp. 287-295. ISBN 978-1-11829-615-8Full text not available from this repository.
High speed compressible jets are used in a number of steel-making applications. In the case of the BOF, a compressible oxygen jet reacts with a carbon-rich iron bath to reduce carbon levels and produce steel. The intensity of the process is governed by the speed of the jet and by the size and shape of the depression created in the metal and slag by the force of the jet, i.e. by the corresponding free surface. This is a difficult CFD problem, since there are compressible and incompressible regions in the flow domain, which need to be handled differently in a finite volume (FV) pressure-correction scheme. Also, standard turbulence models do not account for compressibility, or the large difference in density between the cold oxygen jet and the hot reacting surroundings. Corrections are introduced to the k-ε model to remedy this deficiency and the results are validated against experimental data. The compressible/incompressible boundary is handled through a transition region, based on Mach number.
|Item Type:||Book Section|
|Additional Information:|| This paper, within the Modeling of Steelmaking Processes Section, was originally presented at the CFD Modeling and Simulation in Materials Processing: Modeling of Steelmaking Processes Symposium on Thurs 15th March at 2012 TMS 141st Annual Meeting & Exhibition (The Minerals, Metals & Materials Society), March 11-15, 2012, Orlando Florida, USA. http://www.programmaster.org/PM/PM.nsf/ViewSessionSheets?OpenAgent&ParentUNID=2670A97FC35E8622852578E1005EFBA3|
|Uncontrolled Keywords:||compressible flow, interface capturing, gas and liquid algorithm, steelmaking|
|Subjects:||Q Science > QA Mathematics|
T Technology > T Technology (General)
|School / Department / Research Groups:||School of Computing & Mathematical Sciences|
School of Computing & Mathematical Sciences > Centre for Numerical Modelling & Process Analysis > Computational Science & Engineering Group
|Last Modified:||29 Nov 2012 15:33|
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