A new type of magnetic field arrangement to suppress meniscus fluctuation in slab casting: Numerical simulation and experiment

Li, Yang; Deng, Anyuang; Zhang, Lintao; Yang, Bin; Wang, Engang

doi:10.1016/j.jmatprotec.2021.117278

Cited by 8 publications

(3 citation statements)

References 27 publications

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“…To prevent backflow in that area, k outlet and ε outlet were subjected to zero and 10 −13 at the outlet. The meniscus (z = 0) is subjected to the free-slip condition (Blishchik et al , 2022; Zhang et al , 2021), whereas the mold and SEN walls are subjected to no-slip condition for fluid flow (Li et al , 2021b; Wu et al , 2022). Mold walls move downward at the casting speed.…”

Section: Model Description and Solution Methodologymentioning

confidence: 99%

Effect of casting speed on solidification and inclusion motions in bloom mold caster under the influence of in-mold electromagnetic stirring

Kumar

Jha

2022

HFF

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Purpose The purpose of this article is to numerically investigate the effect of casting speed on the fluid flow, solidification and inclusion motion under the influence of electromagnetic stirring (EMS) in the bloom caster mold with bifurcated submerged entry nozzle (SEN). Design/methodology/approach The electromagnetic field obtained by solving Maxwell’s equation is coupled with the fluid flow, solidification and discrete phase model using the in-house user-defined functions. An enthalpy porosity approach and Lagrangian approach are applied for the solidification analysis and non-metallic inclusions motion tracking, respectively. Findings Investigation shows that the casting speed and EMS significantly affect the steel flow, solidification and inclusion behavior inside the mold. Investigations are being conducted into the complex interplay between the induced flow and the SEN’s inertial impinging jet. In low and medium casting speeds, the application of EMS significantly increases the inclusion removal rate. Inclusion removal is studied for its different size and density and further effect of EMS is also reported on cluster formation and distribution of inclusion in the domain. Practical implications The model may be used to optimize the process parameter (casting speed and EMS) to improve the casting quality of steel by removing the impurities. Originality/value The effect of casting speed on the solidification and inclusion behavior under the influence of time-varying EMS in bloom caster mold with bifurcated nozzle has not been investigated yet. The findings may assist the steelmakers in improving the casting quality.

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Section: Model Description and Solution Methodologymentioning

confidence: 99%

Effect of casting speed on solidification and inclusion motions in bloom mold caster under the influence of in-mold electromagnetic stirring

Kumar

Jha

2022

HFF

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“…Also, Dhivya et al [19] used a Wrench Nicholson plot and limited contrast plans for solving an issue of a characteristic convective progression of an isochoric and synthetically responsive viscid liquid about an oscillating vertical chamber encased in a permeable structure. A computational strategy for a thick incompressible magnetohydrodynamic stream in a pivoting channel under magnetic field impacts was also determined by Li et al [20]. The semianalytical method for the study of the translational movement of two rigid spheres is considered by El-Sapa [21] and El-Sapa and Faltas [22] to compute the mobility coefficients and set the circumstances on the spheres' surfaces mathematically utilizing the limit collocation technique.…”

Section: Introductionmentioning

confidence: 99%

Interaction of Two Rigid Spheres Oscillating in an Infinite Liquid under the Control of a Magnetic Field

El‐Sapa

Albalawi

2023

Journal of Applied Mathematics

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The transient creeping motion of two rigid spheres oscillating in a boundless viscous fluid beneath the impact of the magnetic field is investigated. There is no slippage associated with a Stokes flow on the two rigid spherical surfaces with different sizes and radii. The solutions can be obtained using the boundary collocation scheme at low Reynolds numbers. The unsteady real and imaginary drag coefficients are estimated on the hard spherical particles. These coefficients are computed in tables for various parameters and illustrated graphically. The frequency parameter and Hartmann number also play a significant role in this study where the drag coefficients decrease or increase by 100 percent after the value of κ = 5.0 . Using available literature data, we tested the accuracy and reliability of our results.

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“…M et al cites15 achieved a numerical solution for a natural convective ŕow of an isochoric and chemically reactive viscid ŕuid around an impetuously started oscillating vertical cylinder contained in a permeable framework using a Crank-Nicholson scheme and őnite difference schemes. Li et al [16] also established a computational approach for viscous incompressible magnetohydrodynamic ŕow in a rotating channel under magnetic őeld effects. Other writers, such as [17ś21], employed magnetic őelds in viscous ŕuids and microŕuids and used the collocation approach.…”

Section: Introductionmentioning

confidence: 99%

A rectilinear oscillation of two spheres in an unbounded viscous fluid under the influence of a magnetic field

El‐Sapa

Albalawi

2022

Preprint

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This study examines the unsteady creeping quiescent movement of two rigid spheres within an infinite Stokes fluid flow under the influence of a magnetic field. At the surfaces of rigid spherical particles, Stokes flow is allowed to no-slip. The particles vary in size and radii. A line connecting the centers of the rigid spherical particles moves at different speeds. The solutions are exposed at low Reynolds numbers. As a result of boundary collocation, the differential equations are semi-analytically derived. The drag coefficients estimate the interaction impacts between rigid spherical particles. The coefficients of unsteady drag are presented graphically and tabulated for various parameters. Additionally, it is noted that the Hartmann number and the frequency parameter have a significant effect. Known results in the literature have been used to examine the precision and convergence of our collocation technique.

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A new type of magnetic field arrangement to suppress meniscus fluctuation in slab casting: Numerical simulation and experiment

Cited by 8 publications

References 27 publications

Effect of casting speed on solidification and inclusion motions in bloom mold caster under the influence of in-mold electromagnetic stirring

Effect of casting speed on solidification and inclusion motions in bloom mold caster under the influence of in-mold electromagnetic stirring

Interaction of Two Rigid Spheres Oscillating in an Infinite Liquid under the Control of a Magnetic Field

A rectilinear oscillation of two spheres in an unbounded viscous fluid under the influence of a magnetic field

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