Analysis of Optimization Weights for Flow Field of Internal Rotation Stabilizer Coupled with Porous Retaining Wall

Liu, Ziyu; Jin, Yan; Feifang, Gan; Lin, Peng; Huang, Jingyu; Li, Jun

doi:10.3390/met11081208

Cited by 2 publications

(3 citation statements)

References 20 publications

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“…In addition, the times for the tracer to reach outlet 3 and outlet 4 are the same for the two cases. Figures [14][15][16] show the outflow percentage curve and variance of the outflow percentage curve of uniform increasing casting flow rate cases of the double-weir tundish. When strand 1 is blocked, the outflow percentage of sstrand 2 is significantly lower than that of strand 3 and strand 4.…”

Section: Fluid Flow and Tracer Dispersion In Tundishes Under Single-s...mentioning

confidence: 99%

“…Some researchers [14,15] have verified that optimized flow control devices in tundish can adapt the situation of fewer strands casting. Recently, the effects of turbulence inhibitor, weir, dam, impact pad and their combinations on the flow field have been widely investigated [16][17][18]. In addition, casting speed is one of the key factors affecting flow characteristics in tundish, and is often adjusted to match the production rate and schedule after the blockage.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Uniform and Non-Uniform Increasing Casting Flow Rate on Dispersion and Outflow Percentage of Tracers in Four Strand Tundishes under Strand Blockage Conditions

Fan

Chen

et al. 2022

Metals

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The flow field, tracer dispersion and uniformity of strands in two designs of four-strand tun-dishes under normal conditions and single-strand blockage conditions are studied by numerical simulation. The casting speed (flow rate) of strands are increasing uniformly or non-uniformly to improve the strand blockage condition. The uniformity of strands of the cases are evaluated by a novel outflow percentage analysis method. The results show that the flow field in the tundish does not change significantly when the single-strand is blocked or the casting flow rate is increased. After blockage of one strand, the consistency of each strand of u-shaped weir tundish is better than that of double-weir tundish. With the uniform increasing of the casting flow rate, the response time of each strand decreases and the outflow percentage increases. However, the uniformity of strands improved slightly in double-weir tundish but decreased in u-shaped tundish. For the double-weir tundish, significantly increasing the casting flow rate of the strand located in the blocked part by a factor of 1.5 and slightly increasing the casting flow rate of the other strands by a factor of 1.25, the consistency of each strand is the best. For the u-shaped weir tundish, the consistency of each strand is improved by non-uniform increasing of the casting flow rate of the strands. The flow rate of the strand located in the blocked part and the other strands is increased by a factor of 1.25, and 1.375 or 1.2 and 1.4 are the optimized cases.

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Section: Fluid Flow and Tracer Dispersion In Tundishes Under Single-s...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of Uniform and Non-Uniform Increasing Casting Flow Rate on Dispersion and Outflow Percentage of Tracers in Four Strand Tundishes under Strand Blockage Conditions

Fan

Chen

et al. 2022

Metals

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“…Deng Anyuan [5] studied the trajectory of mixed inclusions based on a three-dimensional coupled model and found that inclusions with smaller diameters tended to remain in the casting billet and were difficult to remove; in contrast, inclusions with larger diameters floated upward for removal. Liu Ziyu [6] studied the influence of an inner-swirling turbulence inhibitor on the trajectory of inclusions in a tundish and found that an inner-swirling turbulence inhibitor could guide the inclusions to collide with each other in the impact zone of the tundish and transport the inclusions that had collided to the molten steel surface for removal. Li Jian [7] studied the three-phase interaction behavior of molten steel bubbles and inclusions based on the Euler-Lagrange model.…”

Section: Introductionmentioning

confidence: 99%

Digital Twin Design of a Turbulence Inhibitor in a Tundish Based on the Production Cluster Mining Algorithm

Wu,

Jin,

Gan

et al. 2023

Metals

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The lack of a direct and linear relation between inclusion removal from tundishes and the design of their turbulence inhibitors is a difficult challenge. In contrast to the traditional method of optimizing flow control devices based on the residence time distribution curve, this study used the inclusion/flow field database production clustering mining algorithm to conduct step-by-step data mining on the tundish flow field; to produce relevant facts of the flow field characteristics in the inclusion aggregation zone; and to extract the data mining results from the fact database to screen a digital twin algorithm that forecasts the inclusion aggregation area in a tundish to optimize the flow control device. The results showed that the inclusion aggregation area in the tundish impact zone is above the turbulence inhibitor and that the inclusion aggregation area outside the tundish impact zone is at the vortex center of the flow field. According to the mining results, a pseudo-code for screening the inclusion aggregation area was developed, and the turbulence inhibitor was optimized with the help of the digital convergence of the digital and physical models. Finally, in a tundish, the inclusion removal rate in molten steel was increased by 14.4%. The turbulence inhibitor designed by the digital twin method is currently being used in a Chinese steel mill.

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Analysis of Optimization Weights for Flow Field of Internal Rotation Stabilizer Coupled with Porous Retaining Wall

Cited by 2 publications

References 20 publications

Effect of Uniform and Non-Uniform Increasing Casting Flow Rate on Dispersion and Outflow Percentage of Tracers in Four Strand Tundishes under Strand Blockage Conditions

Effect of Uniform and Non-Uniform Increasing Casting Flow Rate on Dispersion and Outflow Percentage of Tracers in Four Strand Tundishes under Strand Blockage Conditions

Digital Twin Design of a Turbulence Inhibitor in a Tundish Based on the Production Cluster Mining Algorithm

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