Large eddy simulations of the effects of double-ruler electromagnetic braking and nozzle submergence depth on molten steel flow in a commercial continuous casting mold

Kai Jin, Surya P. Vanka, Brian G. Thomas, Xiaoming Ruan

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

Abstract

In steel continuous casting, flow in the mold region is related to many quality problems such as surface defects and slag entrainment. An electromagnetic braking (EMBr) system is a method to control the steel flow field to minimize defects and capture inclusions. The position of the port of the Submerged Entry Nozzle (SEN) and the peak magnetic field both affect the performance of the EMBr. In the present work, an efficient multi-GPU based code, CUFLOW, is used to perform Large Eddy Simulations of the turbulent flow by solving the time-dependent Navier-Stokes equations in a domain that includes the slide gate, SEN and mold region. The computations were first validated by comparing the predicted surface velocity with plant measurements. Subsequently, eight LES simulations were conducted to study the effects of different EMBr values and SEN depths. The flow patterns in various regions are presented. The results show that applying EMBr greatly lowers top surface velocities and turbulent fluctuations.

Original languageEnglish (US)
Title of host publicationRare Metal Technology 2016 - Held During TMS 2016
Subtitle of host publication145th Annual Meeting and Exhibition
EditorsLaurentiu Nastac, Shafiq Alam, Shafiq Alam, Laurentiu Nastac, Hojong Kim, Lifeng Zhang, Lifeng Zhang, Neale R. Neelameggham, Lifeng Zhang, Takanari Ouchi, Brian G. Thomas, Harald Oosterhof, Miaoyong Zhu, Andreas Ludwig, Andreas Ludwig, Adrian S. Sabau, Koulis Pericleous, Herve Combeau
PublisherMinerals, Metals and Materials Society
Pages159-166
Number of pages8
ISBN (Electronic)9781119225768, 9781119231073
DOIs
StatePublished - 2016
EventCFD Modeling and Simulation in Materials Processing 2016 - TMS 2016: 145th Annual Meeting and Exhibition - Nashville, United States
Duration: Feb 14 2016Feb 18 2016

Publication series

NameTMS Annual Meeting
Volume2016-January

Other

OtherCFD Modeling and Simulation in Materials Processing 2016 - TMS 2016: 145th Annual Meeting and Exhibition
CountryUnited States
CityNashville
Period2/14/162/18/16

Keywords

  • Continuous casting
  • Electromagnetic braking
  • Large eddy simulation

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys

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  • Cite this

    Jin, K., Vanka, S. P., Thomas, B. G., & Ruan, X. (2016). Large eddy simulations of the effects of double-ruler electromagnetic braking and nozzle submergence depth on molten steel flow in a commercial continuous casting mold. In L. Nastac, S. Alam, S. Alam, L. Nastac, H. Kim, L. Zhang, L. Zhang, N. R. Neelameggham, L. Zhang, T. Ouchi, B. G. Thomas, H. Oosterhof, M. Zhu, A. Ludwig, A. Ludwig, A. S. Sabau, K. Pericleous, & H. Combeau (Eds.), Rare Metal Technology 2016 - Held During TMS 2016: 145th Annual Meeting and Exhibition (pp. 159-166). (TMS Annual Meeting; Vol. 2016-January). Minerals, Metals and Materials Society. https://doi.org/10.1002/9781119274681.ch20