Modeling on the Two-Phase Flow in a Slab Continuous Casting Strand Using Euler–Euler Approach
The stability of flow field in the mold has a great effect on the quality of the final continuous casting product. In the current study, the multiphase flow in a slab continuous casting strand was systematically studied using a full scale numerical simulation via Euler–Euler approach, and the effect of the operational parameters including casting speed, gas flow rate, and the submergence depth of the submerged entry nozzle (SEN) was investigated. The study showed that the lower casting speed tended to generate more single roll flow in the strand. With the decrease in the gas flow rate, the flow pattern was evolved from a single roll to a complex flow and then to a double roll. For a fixed gas flow rate and a fixed casting speed, the deeper submergence depth generated more double roll pattern in the strand.
KeywordsContinuous casting Flow pattern Multiphase flow Euler–Euler approach Nail board experiment
The authors are grateful for the support from the National Science Foundation China (Grant No. U1860206), the National Key R&D Program of China (2017YFB0304001). Beijing Key Laboratory of Green Recycling and Extraction of Metals (GREM) and the High Quality Steel Consortium (HQSC) and Green Process Metallurgy and Modeling (GPM2) at the School of Metallurgical and Ecological Engineering at University of Science and Technology Beijing (USTB), China.
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