Hydrodynamic Modeling and Mathematical Simulation of Flow Field and Temperature Profile for Molten Stainless Steel in an Asymmetrical T‐Type Single‐Strand Continuous Casting Tundish with Arch or Round Hole(s) at Dam Bottom |
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Authors: | Xue‐min Yang Song‐xia Liu Jin‐sha Jiao Meng Zhang Jian‐ping Duan Liang Li Cheng‐zhi Liu |
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Affiliation: | 1. State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China;2. Graduate University of Chinese Academy of Sciences, Beijing 100039, P. R. China;3. Technology Center, Shanxi Taigang Stainless Steel Company Limited, Taiyuan 030003, P. R. China |
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Abstract: | In order to obtain the optimal structural parameters of the dug arch or round hole(s) at dam bottom in an 18–20 tons asymmetrical T‐type single‐strand continuous casting tundish, the flow field profiles and temperature profiles of molten stainless steel in the tundish with arch or round hole(s) at dam bottom have been investigated using hydrodynamic modeling coupled with mathematical simulation. The optimal structural parameters of arch hole(s) at dam bottom can be obtained from hydrodynamic modeling as that two arch holes with 30 mm as height and 50 mm as radius are symmetrically dug at dam bottom with the distance between arch hole center and dam center as 205 mm; or the optimal structural parameters of round hole(s) can be recommended as that one round hole with 70 mm as diameter is dug at left of the dam bottom with the distance between hole center and dam center as 205 mm. The results of mathematical simulation suggest that digging arch or round hole(s) at dam bottom with above‐mentioned structural parameters cannot obviously induce negative effects on streamlines and velocity vector profiles of molten stainless steel in the tundish by short circuit flow via arch or round hole(s) at dam bottom. The calculated temperature drop of molten stainless steel between the submerged ladle shroud and submerged entry nozzle in the tundish with arch or round hole(s) at dam bottom is about 3.0 K, the maximum temperature drop of molten stainless steel in the tundish is about 6.0 K. |
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Keywords: | asymmetrical T‐type single‐strand continuous casting tundish hydrodynamic modeling mathematical simulation arch or round hole(s) at dam bottom velocity vector profiles |
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