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Numerical Simulation of Filling Process During Twin-Roll Strip Casting

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Abstract

The modeling and controlling of flow and solidification of melt metal in the filling process is important for obtaining the optimal pool level and the formation of the solidified metal layer on the surface of twin-rolls during the twin-roll strip casting. The proper delivery system and processing parameters plays a key role to control flow characteristics in the initial filling stage of the twin-roll strip casting process. In this paper, a commercial CFD software was employed to simulate the transient fluid flow, heat transfer, and solidifications behaviors during the pouring stage of twin-roll strip casting process using different delivery systems. A 3D model was set up to solve the coupled set of governing differential equations for mass, momentum, and energy balance. The transient free-surface problem was treated with the volume of fluid approach, a k–ɛ turbulence model was employed to handle the turbulence effect and an enthalpy method was used to predict phase change during solidification. The predicted results showed that a wedge-shaped delivery system might have a beneficial impact on the distribution of molten steel and solidification. The predicted surface profile agreed well with the measured values in water model.

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Acknowledgments

The authors gratefully acknowledge the financial support received from the Innovative Foundation of Shanghai University (SDCX2013031).

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Authors and Affiliations

  1. Shanghai Key Laboratory of Modern Metallurgy and Materials Processing, School of Materials Science and Engineering, Shanghai University, Shanghai, 200072, P. R. China

    Zhiyu Liu (Graduate Student), Bo Wang (Professor), Qinghua Zhang (Graduate Student), Jie Ma (Ph. D. Candidate) & Jieyu Zhang (Professor)

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  1. Zhiyu Liu
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  2. Bo Wang
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  3. Qinghua Zhang
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  4. Jie Ma
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  5. Jieyu Zhang
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Correspondence to Bo Wang.

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Manuscript submitted July 10, 2013.

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Liu, Z., Wang, B., Zhang, Q. et al. Numerical Simulation of Filling Process During Twin-Roll Strip Casting. Metall Mater Trans B 45, 262–271 (2014). https://doi.org/10.1007/s11663-013-0012-9

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  • DOI: https://doi.org/10.1007/s11663-013-0012-9

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