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Mathematical Simulation of CCM Mold Filling with Liquid Metal during Its Feeding from Rotary Submerged Nozzle

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Abstract

Experimental studies of liquid metal flow in CCM mold is a complex, time and labor consuming process. Therefore, mathematical simulation by numerical methods is being used wider and wider. A new technology of liquid metal filling into a mold is proposed. The original patented design is proposed, comprised of a direct flow and rotary bottom nozzles. The main experimental results of melt flow in a mold are presented. The research objects have been hydrodynamic and heat flows of liquid metal in the new process of steel supply into a rectangular mold of CCM, resulting in a spatial mathematical model describing flow and temperatures of liquid metal in mold. The processes occurring upon metal flow in mold have been simulated on the basis of specially developed software. The theoretical calculations are based on the basic equations of hydrodynamics, the equations of mathematical physics (the equation of heat transfer with consideration for mass transfer), and the verified numerical method. The investigated region has been split into elements of finite sizes, and the obtained set of equations has been written for each element in difference form. The solution results are the fields of velocities and temperatures of metal flow in mold. Using the developed numerical schemes and algorithms, the calculation program has been arranged. A calculation of steel supply into a rectangular mold as well as schemes of liquid metal flow across various cross sections of the mold are exemplified. Vector flows of liquid metal in various cross sections of the mold at different rotation angles of bottom nozzle are visualized. The regions of intensive turbulence have been revealed. The metal flows of the described process of filling are compared with conventional metal supply by a fixed bottom nozzle.

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Authors and Affiliations

  1. Komsomolsk-on-Amur State University, 681013, Komsomolsk-on-Amur, Russia

    V. I. Odinokov, A. I. Evstigneev, E. A. Dmitriev, S. Yu. Aleksandrov & G. I. Usanov

  2. Khabarovsk Federal Research Center (Institute of Mechanical Engineering and Metallurgy, Far-Eastern Branch of Russian Academy of Sciences), 681005, Komsomolsk-on-Amur, Russia

    A. I. Evstigneev

Authors
  1. V. I. Odinokov
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  2. A. I. Evstigneev
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  3. E. A. Dmitriev
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  4. S. Yu. Aleksandrov
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  5. G. I. Usanov
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Correspondence to V. I. Odinokov, A. I. Evstigneev, E. A. Dmitriev, S. Yu. Aleksandrov or G. I. Usanov.

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Translated by I. Moshkin

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Odinokov, V.I., Evstigneev, A.I., Dmitriev, E.A. et al. Mathematical Simulation of CCM Mold Filling with Liquid Metal during Its Feeding from Rotary Submerged Nozzle. Steel Transl. 52, 179–186 (2022). https://doi.org/10.3103/S0967091222020164

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