Publication detail

Effects of the asymmetric and oscillating turbulent melt flow on the heat transfer and solidification inside the thin slab continuous casting (TSC) mold under the applied electromagnetic brake (EMBr)

VAKHRUSHEV, A. KARIMI-SIBAKI, E. WU, M. TANG, Y. HACKL, G. WATZINGER, J. BOHÁČEK, J. KHARICHA, A.

Original Title

Effects of the asymmetric and oscillating turbulent melt flow on the heat transfer and solidification inside the thin slab continuous casting (TSC) mold under the applied electromagnetic brake (EMBr)

Type

journal article in Scopus

Language

English

Original Abstract

The thin slab casting (TSC) is a breakthrough near-net-shape technique for flat products accompanied by rapid casting and solidification rates. The TSC quality hinges on the turbulence, super-heat flow and growth of the solidified shell. The electromagnetic brake (EMBr) is commonly applied to control the fresh melt flow after feeding through a submerged entry nozzle (SEN). Numerical modelling is a perfect tool to investigate the multiphase phenomena in the continuous casting (CC). The presented study considers the heat transfer through the solid shell and water-cooled copper mold including the averaged thermal resistance of the slag skin and the air gap coupled with the turbulent flow and magnetohydrodynamics (MHD) model using an in-house code developed inside the open-source computational fluid dynamics (CFD) package OpenFOAM®. The model is applied to investigate different undesired asymmetric melt flow issues: (i) with the misaligned or (ii) partially blocked SEN; (iii) caused by the mean flow fluctuations with the natural frequencies; (iv) related to the oscillations of the fresh melt jets for the specific SEN designs and casting regimes. The variation of the flow pattern and superheat distribution is studied and presented for different scenarios both with and without applied EMBr.

Keywords

thin slab continuous casting; electromagnetic brake; OpenFOAM; LES; submerged entry nozzle; asymmetry; oscillation; fluctuation.

Authors

VAKHRUSHEV, A.; KARIMI-SIBAKI, E.; WU, M.; TANG, Y.; HACKL, G.; WATZINGER, J.; BOHÁČEK, J.; KHARICHA, A.

Released

1. 5. 2024

Publisher

IOP Publishing

ISBN

1742-6596

Periodical

Journal of Physics: Conference Series

Year of study

2766

Number

1

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

6

Pages count

6

URL

https://iopscience.iop.org/article/10.1088/1742-6596/2766/1/012196

Full text in the Digital Library

http://hdl.handle.net/11012/249506

BibTex

@article{BUT188797,
  author="Alexander {Vakhrushev} and Ebrahim {Karimi-Sibaki} and Menghuai {Wu} and Yong {Tang} and Gernot {Hackl} and Josef {Watzinger} and Jan {Boháček} and Abdellah {Kharicha}",
  title="Effects of the asymmetric and oscillating turbulent melt flow on the heat transfer and solidification inside the thin slab continuous casting (TSC) mold under the applied electromagnetic brake (EMBr)",
  journal="Journal of Physics: Conference Series",
  year="2024",
  volume="2766",
  number="1",
  pages="1--6",
  doi="10.1088/1742-6596/2766/1/012196",
  issn="1742-6596",
  url="https://iopscience.iop.org/article/10.1088/1742-6596/2766/1/012196"
}