Abstract
Tundish geometry and operational practices have a significant effect on steel flow, inclusion removal, and potential flux entrainment. Innovative multi-phase computational fluid dynamics (CFD) modeling, in conjunction with advanced physical water modeling, of tundish flow during various casting conditions was performed to optimize the tundish design, create efficient operational practices, and ultimately achieve highest quality steel. Residence time distribution measurements were used to validate strong agreement between the two modeling techniques simulated in parallel. Motion tracking of various sized nonmetallic particles during simulations provided quantitative information on the expected impact on cleanness of the steel exiting the tundish. Interactions between the liquid steel, flux, and gases during various tundish operations were simulated to measure the propensity of flux entrainment during certain casting events. 3-D video results provided visuals of the steel and nonmetallic phases at all areas of interest.
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