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Hydrodynamic Study of a Submerged Entry Nozzle with Flow Modifiers

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Abstract

The fluid flow modifier technology for continuous casting process was evaluated through numerical simulations and physical experiments in this work. In the casting of steel into the mold, the process presents liquid surface instabilities which extend along the primary cooling stage. By the use of trapezoid elements installed on the external walls of the submerged nozzle, it was observed that it is possible to obtain symmetry conditions at the top of the mold and prevent high level fluctuations. The flow modifiers have equidistant holes in the submerged surface to reduce the velocity of the liquid surface by energy and mass transfer between the generated quadrants. A flow modifier drilled with a 25 pct of the submerged surface provides stability in the mold and structural stability of the proposal is guaranteed.

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Acknowledgments

J. Gonzalez-Trejo, C.A. Real-Ramirez, and R. Miranda-Tello thank the SNI for the distinction granted and the stipend received. The physical experiments were developed in the LABINTHAP SEPI-ESIME at the Instituto Politecnico Nacional. The numerical simulations were carried out in the Scientific Computing Laboratory of the Department of Systems at the Universidad Autonoma Metropolitana-Azcapotzalco.

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Authors and Affiliations

  1. Systems Department, Universidad Autonoma Metropolitana, 02200, Mexico City, Mexico

    Cesar Augusto Real-Ramirez & Jesus Gonzalez-Trejo

  2. Electronics Department, Universidad Autonoma Metropolitana, 02200, Mexico City, Mexico

    Raul Miranda-Tello

  3. Instituto Politécnico Nacional, ESIME, UPALM, 07738, Mexico City, Mexico

    Ignacio Carvajal-Mariscal & Florencio Sanchez-Silva

Authors
  1. Cesar Augusto Real-Ramirez
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  2. Raul Miranda-Tello
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  3. Ignacio Carvajal-Mariscal
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  4. Florencio Sanchez-Silva
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  5. Jesus Gonzalez-Trejo
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Corresponding author

Correspondence to Cesar Augusto Real-Ramirez.

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Manuscript submitted June 15, 2016.

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Real-Ramirez, C.A., Miranda-Tello, R., Carvajal-Mariscal, I. et al. Hydrodynamic Study of a Submerged Entry Nozzle with Flow Modifiers. Metall Mater Trans B 48, 1358–1375 (2017). https://doi.org/10.1007/s11663-016-0863-y

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  • DOI: https://doi.org/10.1007/s11663-016-0863-y

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