Mathematical and Physical Simulation of a Top Blown Converter

作者：Zhou Xiaobin^*; Ersson Mikael; Zhong Liangcai; Yu Jingkun; Jonsson Par

来源：Steel Research International, 2014, 85(2): 273-281.

DOI：10.1002/srin.201300310

• converter
• top blown
• simplified model
• mixing time
• cavity

A mathematical model of a top blown converter, which was based on a physical model of a 30t vessel, was developed in this study. A simplified model consisting of the converter was used in the mathematical simulation. With the simplified model, it is possible to run a large number of tracer calculations within a short time, compared to solving for the entire flow evolution each time. A cavity depth and radius comparison has been done between the physical model and the mathematical model, which showed a good relative difference of 2.5% and 6.1% for the cavity depth and radius, respectively. The velocity change in the bath of the converter was monitored by setting several monitoring points in the physical model. A fully developed flow field was assumed to occur when the fluctuations in these points were small or periodic. It took approximately 25s to get a developed flow field. In addition, the predicted mixing time showed a good relative difference of 2.8% in comparison to the experimental data.

• 出版日期2014-2
• 单位东北大学