2019
DOI: 10.1002/srin.201900209
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Investigation on Fluid Flow inside a Continuous Slab Casting Mold Using Particle Image Velocimetry

Abstract: Herein, full region (not divided the mold into several parts) fluid flow in a wide slab mold is studied using a one‐quarter scale water model. The particle image velocimetry (PIV) is used to analyze the turbulent features of the flows. The features include the distribution of instantaneous velocity fields, time‐averaged velocity fields, turbulent fluctuation velocity fields, the turbulent kinetic energy (TKE) and its dissipation rate, rate of strain, and the vorticity. There are several findings in this study. … Show more

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Cited by 10 publications
(8 citation statements)
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“…During the continuous casting (CC) process of steel slabs, argon gas is commonly injected into the submerged entry nozzle (SEN) through the gas channel of the stopper rod, [1][2][3][4] small holes or porous refractory in upper tundish nozzle (UTN), [5][6][7][8] and the sliding gate of the SEN [9][10][11] to prevent the clogging of nonmetallic inclusions to the wall of the SEN. [12,13] Inevitably argon bubbles alter the flow pattern inside the mold. [14][15][16][17] Meanwhile, larger bubbles produce slug or annular flows inside the SEN and float up toward the top surface quickly which leads to flow instability, mold level fluctuation, and product quality problems.…”
Section: Introductionmentioning
confidence: 99%
“…During the continuous casting (CC) process of steel slabs, argon gas is commonly injected into the submerged entry nozzle (SEN) through the gas channel of the stopper rod, [1][2][3][4] small holes or porous refractory in upper tundish nozzle (UTN), [5][6][7][8] and the sliding gate of the SEN [9][10][11] to prevent the clogging of nonmetallic inclusions to the wall of the SEN. [12,13] Inevitably argon bubbles alter the flow pattern inside the mold. [14][15][16][17] Meanwhile, larger bubbles produce slug or annular flows inside the SEN and float up toward the top surface quickly which leads to flow instability, mold level fluctuation, and product quality problems.…”
Section: Introductionmentioning
confidence: 99%
“…26,27) The characteristic parameters of the molten steel flow inside the mold included the jet angle, asymmetric flow, vortex center position in the recirculation zone, top surface profile, and top surface velocity distribution. Recent studies on the effect of casting parameters on the flow behavior of the molten steel inside the CC mold are summarized in Table 1, including investigations performed by physical simulation, [11][12][13]16,21,23,28) mathematical modeling, 15,29) and industrial trials. 4,30,31) During jets from the SEN moved to the narrow face, vortex was generated at different locations in the recirculation zone of the mold with the variation of different casting parameters.…”
Section: Prediction Study On Vortex Center Position and Surface Veloc...mentioning
confidence: 99%
“…Thus, it has been common in the literature to use an analogous water-oil experimental setup where water and oil resemble the molten steel and slag layer, respectively. However, the majority of older publications neglected the oil layer and conducted pure water experiments (Yokoya et al, 2000;Zhang et al, 2007;Ren et al, 2019) or focused on the effect of gas injection (Ramos-Banderas et al, 2005;Liu et al, 2014). Vakhrushev et al (2014), Zhao et al (2017), and Zhao and Zhou (2019) report experiments for LES validation with a water and oil configuration but focus on the analysis of the interface deformation and open eye formation without further measurements of the flow field.…”
Section: Previous Experimental Workmentioning
confidence: 99%