Effect of electromagnetic stirring on the transient flow, solidification and inclusion movements in the continuous casting slab mold
International Journal of Numerical Methods for Heat & Fluid Flow
ISSN: 0961-5539
Article publication date: 10 August 2023
Issue publication date: 31 October 2023
Abstract
Purpose
The purpose of this study is to explore how a time-varying electromagnetic stirring (EMS) affects the fluid flow and solidification behavior in a slab caster continuous casting mold. Further, the study of inclusion movements in the mold is carried out under the effect of a time-varying electromagnetic field.
Design/methodology/approach
A three-dimensional coupled numerical model of solidification and magnetohydrodynamics has been developed for slab caster mold to investigate the inclusions transport by discrete phase model with the use of user-defined functions. Enthalpy porosity and the Lagrangian approach are applied to analyze the behavior of solidification and inclusion.
Findings
The study shows that the magnetic field density distribution has a radial symmetry in relation to the stirrer’s center. As the EMS current intensity increases, the strength of the lower recirculation zone gradually decreases and nearly disappears at higher intensities. Additionally, the area of localized remelting zone expands in the solidification front with rising current intensity. The morphology of inclusions and EMS current intensity have a significant impact on the behavior and movement of inclusions within the molten steel.
Practical implications
By using the model, one can optimize the EMS parameter to enhance the quality of steel casting through the elimination of impurities and by improving the microstructure of cast that mainly depend on solidification and flow patterns of molten steel.
Originality/value
Until now, the use of time-varying EMS in the slab caster mold to study solidification and inclusion behavior has not been explored.
Keywords
Acknowledgements
Credit line: All figures are created by authors.
Declaration of competing interest: The authors have no financial or personal conflicts of interest that could have influenced the research findings presented in the study.
The authors express appreciation for the financial assistance received from SERB, DST, Government of India through a sponsored project (SER-1639-MID) to conduct the research presented in this study.
Data availability statement: The data supporting the findings of this study are available from the corresponding author upon reasonable request.
Citation
Kumar, R. and Jha, P.K. (2023), "Effect of electromagnetic stirring on the transient flow, solidification and inclusion movements in the continuous casting slab mold", International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 33 No. 11, pp. 3716-3733. https://doi.org/10.1108/HFF-04-2023-0220
Publisher
:Emerald Publishing Limited
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