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Metallurgical and Materials Transactions B
Erschienen in: Metallurgical and Materials Transactions B 3/2018

20.02.2018

Large Eddy Simulations of Electromagnetic Braking Effects on Argon Bubble Transport and Capture in a Steel Continuous Casting Mold

verfasst von: Kai Jin, Surya P. Vanka, Brian G. Thomas

Erschienen in: Metallurgical and Materials Transactions B | Ausgabe 3/2018

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Abstract

In continuous casting of steel, argon gas is often injected to prevent clogging of the nozzle, but the bubbles affect the flow pattern, and may become entrapped to form defects in the final product. Further, an electromagnetic field is frequently applied to induce a braking effect on the flow field and modify the inclusion transport. In this study, a previously validated GPU-based in-house code CUFLOW is used to investigate the effect of electromagnetic braking on turbulent flow, bubble transport, and capture. Well-resolved large eddy simulations are combined with two-way coupled Lagrangian computations of the bubbles. The drag coefficient on the bubbles is modified to account for the effects of the magnetic field. The distribution of the argon bubbles, capture, and escape rates, are presented and compared with and without the magnetic field. The bubble capture patterns are also compared with results of a previous RANS model as well as with plant measurements.
Vorheriger Artikel Numerical Simulation of Bulging Deformation for Wide-Thick Slab Under Uneven Cooling Conditions
Nächster Artikel Numerical and Experimental Modeling of the Recirculating Melt Flow Inside an Induction Crucible Furnace

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Metadaten
Titel
Large Eddy Simulations of Electromagnetic Braking Effects on Argon Bubble Transport and Capture in a Steel Continuous Casting Mold
verfasst von
Kai Jin
Surya P. Vanka
Brian G. Thomas
Publikationsdatum
20.02.2018
Verlag
Springer US
Erschienen in
Metallurgical and Materials Transactions B / Ausgabe 3/2018
Print ISSN: 1073-5615
Elektronische ISSN: 1543-1916
DOI
https://doi.org/10.1007/s11663-018-1191-1

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