Archives of Metallurgy and Materials

Bartosiewicz, Michał; Cwudziński, A.

doi:10.24425/amm.2019.126220

Cited by 5 publications

(3 citation statements)

References 33 publications

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“…therefore, the results obtained by the mathematical model should be verified by physical modeling -laboratory experiments with water model, and, if possible, by industrial experiment. the results of mathematical models simulations confirmed by the results of water modeling provide important information for the implementation of innovative solutions in industrial conditions [15][16][17][18].…”

Section: Introductionmentioning

confidence: 79%

“…regarding the water model, such analyses are seldom published. a rare example is a paper [18] where an experiment was performed six times at the same experimental setting under conditions of repeatability.…”

Section: Discussionmentioning

confidence: 99%

“…repeatability conditions bring the model closer to the industrial use of tundish, in which the casting is repeated many times under approximately the same conditions. Papers that take into account the repeatability of modeling, such as [18], are rare.…”

Section: Introductionmentioning

confidence: 99%

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Archives of Metallurgy and Materials

Blaško,

Bulko,

Petrík

et al. 2021

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The AdjusTmenT of The Tundish WATer model of ConTinuous CAsTingWhereas approximately 96.3% of the steel produced worldwide is made by continuous casting, great emphasis is put on the superior efficiency of this process. the water model of the tundish and mathematical modeling is often used for the simulation of the steel flow during continuous casting. the experiments were performed on a model of the tundish with two outlets, at two casting speeds (0.8 m.s -1 and 1.2 m.s -1 ). eight setups of the tundish were evaluated, which differed in the design of the dams (with or without drainage holes), in their distance from the center of the tundish, and their height. the contribution of the work is the analysis of phenomena in the tundish water model in conditions of repeatability (ten repetitions). the goal is to find the setup providing the most symmetrical flow, with the minimum difference in the residence times Δτ on the two outlets. taking into account the results obtained at both casting speeds, the most preferred is setup 2 with the 87 mm high dams placed 587 mm from the center of tundish (Δτ = 0.5). The setup 3 (Δτ = 8.25) appears to be the least appropriate. the higher the casting speed, the higher the number of unsuitable arrangements.

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Section: Introductionmentioning

confidence: 79%

Section: Discussionmentioning

confidence: 99%

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Archives of Metallurgy and Materials

Blaško,

Bulko,

Petrík

et al. 2021

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Challenge of Residence Time Distribution Curve in Tundish for Continuous Casting of Steel

Ding

Lei

Chen

et al. 2022

steel research int.

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The residence time distribution (RTD) curve is a simple and useful method to analyze the flow behavior in the tundish. In the last decades, analysis result acquirement based on the RTD curve has been applied to design and optimize the flow control devices in a simple bare tundish or a multistrand tundish. There are many factors to affect the acquirement and analysis of the RTD curve, such as the tracer, the measuring technology, and the analysis model. In order to find a solution for the above issues, the latest progress and research status of RTD curve are discussed in the fields of water model, mathematical model, RTD analysis model, and measuring technology. After comparison, the KCl solution is a good tracer, and its tracer concentration and volume can be determined by the dimensionless tracer parameter (Dtp). The extended combined model can be applied to analyze the RTD curve by pulse input of tracer, and the mean residence time is the key parameter to identify the difference in fluid characteristics among the strands.

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Understanding of baffle effect of inserting a filter within a tundish via a water model experiment and numerical simulation

Tan,

Li,

Liu

et al. 2024

Metall. Res. Technol.

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The baffle effect of inserting a filter within a tundish was investigated using a combination of water model experiments and numerical simulations. The filter, which is a cost-effective device used to enhance the quality of molten steel by removing inclusions, was studied for its impact on the removal rate of inclusions. In the water model experiments, a scaled-down model of the tundish system was created with a geometric ratio of 1:4. Polyethylene particles of varying sizes were used to simulate the inclusions. Additionally, a three-dimensional numerical model of the water model was developed to validate the experimental findings, provide supplementary data for analysis, and propose an optimized tundish configuration by moving the weir away from the filter by 50, 100, and 150 mm. The flow patterns were also thoroughly examined. The results revealed that the presence of the filter increased the flow resistance within the tundish, leading to changes in the residence time distribution. This resulted in the formation of a ‘dead zone’ with a significantly prolonged residence time. The higher flow resistance hindered the entry and exit of particles from the last chamber of the tundish. As a result, the distribution of particles in the last chamber became more dispersed, reducing the detrimental effects of inclusions in the steel. The removal efficiency of the seven types of particles was improved by 2–7%. Furthermore, by moving the weir away from the filter by 50 mm, the removal ratio could be further increased by approximately 2%.

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Archives of Metallurgy and Materials

Cited by 5 publications

References 33 publications

Archives of Metallurgy and Materials

Archives of Metallurgy and Materials

Challenge of Residence Time Distribution Curve in Tundish for Continuous Casting of Steel

Understanding of baffle effect of inserting a filter within a tundish via a water model experiment and numerical simulation

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