Mathematical and physical simulation and optimization of non-isothermal flow field in channel tundish
WANG Shu-hao1, HUANG Jun1, ZHANG Rui2, ZHOU Shi-kai2, YI Bing3
1. School of Energy and Environment, Inner Mongol University of Science and Technology, Baotou 014010, Inner Mongol, China; 2. Metallurgical Equipment Research Institute, China National Heavy Machinery Research Institute Co., Ltd., Xi'an 710032, Shaanxi, China; 3. Technology Department, Hunan Zhongke Electric Co., Ltd., Yueyang 414000, Hunan, China
Abstract：In order to study the influence of the internal structure of the channel-type tundish and the non-isothermal conditions on the flow field, this study optimized the position and angle of the tundish channel and the angle of the fork to determine the optimal design of the tundish channel. This study used traditional numerical simulation and water simulation combined with advanced speed measurement methods, and based on non-isothermal water simulation experiments, quantitatively researches the characteristic parameters such as velocity field, vorticity field and RTD in the tundish. Moreover,it explored the influence of non-isothermal conditions on the flow field of the tundish. The results showed that the heating of the channels in the tundish significantly affects the distribution of the flow field and enhances the range and intensity of the turbulence distribution. From the time-averaged results of the water simulation, it can be seen that the maximum flow velocity of the liquid surface under non-isothermal conditions is 0.06 m/s, which is 50% higher than that under isothermal conditions. After comparison of the schemes, the position of the main channel was at a height of 150 mm from the center of the channel longitudinally to the bottom, and the angle with the bottom was 3°. Simultaneously, the structure with the fork and the plane of the main channel at an elevation angle of 30° was the appropriate solution for the channel tundish.
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2022, Vol. 41 
