Numerical Investigation of Single-Strand Slab Casting Tundish Flow with Heat Transfer and Inclusion Transport
Numerical Investigation of Single-Strand Slab Casting Tundish Flow with Heat Transfer and Inclusion Transport
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DOI：
10.1007/s12666-020-02129-x
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发表时间：
2021-01
影响因子：
1.6
通讯作者：
S. Patil;N. Viswanathan
中科院分区：
文献类型：
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作者：
S. Patil;N. Viswanathan
在连铸过程中，通过各种手段促进铸坯内部夹杂物的分离，可以提高和保持钢的洁净度，在铸坯内部布置控流装置来优化铸坯流动就是其中之一。三维计算流体动力学模拟湍流流动是研究流动控制装置布置的有效方法。本文对两相流进行了三维等温稳态流动模拟、停留时间分布分析和夹杂物输运模拟。所有的模拟结果与文献中报道的实验测量进行了验证。随后，模拟扩展为非等温流动的现有的中间包在工厂和一个额外的流量控制装置，即一个堰与适当的尺寸被提出，这表明更好的钢流动的中间包与更多的夹杂物分离效率相比，现有的裸中间包。
In continuous casting process, cleanliness of steel can be improved and maintained by promoting the inclusion separation inside the tundish by various means; tundish flow optimization using arrangement of flow control devices inside the tundish is one among them. Three-dimensional computational fluid dynamics simulation of tundish flow is an efficient way to investigate the arrangement of flow control devices. In the present work, three-dimensional isothermal steady-state flow simulations, residence time distribution analysis and inclusion transport simulations of tundish flow are conducted. All the simulation results are validated with experimental measurements reported in literature. Subsequently, the simulations are extended for a non-isothermal flow of the existing tundish in the plant and an additional flow control device, namely a weir with appropriate dimensions is proposed which indicated better steel flow in the tundish with more inclusion separation efficiency as compared to the existing bare tundish.