Modeling of argon gas behavior in continuous casting of steel

Hyunjin Yang, Surya P. Vanka, Brian Thomas

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In continuous casting of steel, argon gas injection is a popular method to reduce nozzle clogging. Multiphase turbulent flow of molten steel with argon gas through complicated-geometry nozzles increases the complexity of the flow dynamics. In this study, these complex multiphase turbulent flow behaviors are simulated in a lab-scale continuous caster using a new hybrid model that involves a Eulerian-Eulerian (EE) model coupled simultaneously with a Discrete Phase Model (DPM). The complex behavior of the argon gas including formation of gas pockets, intermittent shearing off of the gas pockets, volumetric expansion, coalescence and breakup of bubbles, and transport of the bubbles in both the nozzle and mold are all simulated. The model is validated with measurements on a benchmark experiment of liquid-metal argon flow in a laboratory-scale system. This hybrid model is a promising tool to estimate realistic bubble size distributions and multiphase flow in a real caster.

Original languageEnglish (US)
Title of host publicationCFD Modeling and Simulation in Materials Processing 2018
EditorsLaurentiu Nastac, Brian G. Thomas, Koulis Pericleous, Lifeng Zhang, Adrian S. Sabau
PublisherSpringer International Publishing
Pages119-131
Number of pages13
ISBN (Print)9783319720586
DOIs
StatePublished - Jan 1 2018
EventInternational Symposium on CFD Modeling and Simulation in Materials Processing, 2018 - Phoenix, United States
Duration: Mar 11 2018Mar 15 2018

Publication series

NameMinerals, Metals and Materials Series
VolumePart F3
ISSN (Print)2367-1181
ISSN (Electronic)2367-1696

Other

OtherInternational Symposium on CFD Modeling and Simulation in Materials Processing, 2018
CountryUnited States
CityPhoenix
Period3/11/183/15/18

Keywords

  • Breakup
  • Bubble size distribution
  • Coalescence
  • Shearing off
  • Volumetric expansion

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy Engineering and Power Technology
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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  • Cite this

    Yang, H., Vanka, S. P., & Thomas, B. (2018). Modeling of argon gas behavior in continuous casting of steel. In L. Nastac, B. G. Thomas, K. Pericleous, L. Zhang, & A. S. Sabau (Eds.), CFD Modeling and Simulation in Materials Processing 2018 (pp. 119-131). (Minerals, Metals and Materials Series; Vol. Part F3). Springer International Publishing. https://doi.org/10.1007/978-3-319-72059-3_12