Effects of electrically conductive walls on turbulent magnetohydrodynamic flow in a continuous casting mold

Blishchik, Artem; Glavinić, Ivan; Wondrak, Thomas; Odyck, Daniel van; Kenjereš, Saša

doi:10.1016/j.ijheatfluidflow.2022.108967

Cited by 3 publications

(3 citation statements)

References 34 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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“…Because of its contact-less and intelligent controlling characteristics, the Lorentz force drive [1,2] and measurement technology [3][4][5] based on electromagnetic induction yields * Author to whom any correspondence should be addressed. significant industrial application prospects, Since Shercliff and Thess.…”

Section: Introductionmentioning

confidence: 99%

A dynamic method for online measurement and calibrating with Lorentz force velocimetry

Zheng,

Li,

Guo

et al. 2024

Meas. Sci. Technol.

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Our previous study [1-2] reports a non-invasive in-situ measurement technology using Lorentz force velocimetry to quantitatively measure the meniscus velocity of molten steel online. However, effective signal recognition from complex environment noise and determination of zero-point calibration in harsh metallurgical processing is an essentially challenging task and indeed needs further exploration. In this paper, a method of combining double probe arrangement with real-time differential processing technology was proposed, the twin design structure not only enables the measurement of ~mN Lorentz forces, but also has significant characteristics of environmental tolerance. The Lorentz force signal caused by conductor motion can be accurately calculated through a differential method, meaning that the problem of zero compensation in industrial online measurement can be effectively overcome. Moreover, based on the functional correlation between the Lorentz force and the parameter of the conductor to be measured, a method of the probes moving variably and actively and their data difference ratio processing was adopted, so as to achieve dynamic calibration during online measurement. This measurement strategy provides a new approach for LFV to achieve online dynamic measurement and online calibration, and provides technical support for electromagnetic measurement technology towards engineering applications.

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“…Jamshed et al 18 investigated heat transmission and steady MHD mixed convection flow in vented porous enclosing spaces using a heated elliptic inner cylinder filled with nanofluid. In a laboratory-scale system, Blishchik et al 19 investigated the continuous costing of turbulent liquid metal flow numerical solutions. Gireesha et al 20 investigated Carreau liquid flow heat transfer on a porous sensor plane.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear radiation phenomena for Casson–Maxwell nanoliquid flow with chemical reactions

Gangadhar

Victoria²,

Lakshmi³

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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The viscoelastic characteristics of an incompressible, axisymmetric Casson–Maxwell nanoliquid flow between two stationary discs were examined in this paper. Two porous discs are constrained for uniform injection. The Christov model is used in conjunction with the Buongiorno model. In an energy equation with a nonlinear form, thermal radiation characteristics are used. In the current continuation, the impact of chemical reactions is taken into account, making the work more adaptable. Using appropriate transformations, the constructed model was transformed into a dimensionless form. The solution is obtained by employing the FEM technique. The related parameters are described using physical results. The radial velocity distribution at the center line was reduced using a magnetic parameter and a Casson parameter. When the Brownian motion constant and radiation parameter are increased, the temperature distribution of nanoparticles enhances. Furthermore, the rate of the reaction increases in the presence of a chemical reaction. Pearson's correlation coefficient was used to discover a relationship between the Sherwood and Nusslet numbers. To determine the linear relationship between variables, the t-test method is used.

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Effects of electrically conductive walls on turbulent magnetohydrodynamic flow in a continuous casting mold

Cited by 3 publications

References 34 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

A dynamic method for online measurement and calibrating with Lorentz force velocimetry

Nonlinear radiation phenomena for Casson–Maxwell nanoliquid flow with chemical reactions

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