Numerical and Modeling Analysis of Fluid Flow and Heat Transfer of Liquid Steel in a Tundish with Different Flow Control Devices

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著者

    • MORALES R. D.
    • Department of Metallurgy, Instituto Politecnico Nacional-E. S. I. Q. I. E.
    • LOPEZ-RAMIREZ S.
    • Department of Metallurgy, Instituto Politecnico Nacional-E. S. I. Q. I. E.
    • PALAFOX-RAMOS J.
    • Department of Metallurgy, Instituto Politecnico Nacional-E. S. I. Q. I. E.
    • ZACHARIAS D.
    • Department of Metallurgy, Instituto Politecnico Nacional-E. S. I. Q. I. E.

抄録

Fluid flow and heat transfer of liquid steel in a two-strand tundish of a slab caster were analyzed using water modeling and numerical techniques. Three cases were considered: A bare tundish, a tundish equipped with a pair of weirs and a pair of baffles (arrangement W&B) and a tundish equipped with a turbulence inhibitor and a pair of baffles (arrangement TI&B). The water modeling, under isothermal conditions, indicated the existence of a strong bypass-flow for the bare tundish and the W&B arrangement while the TI&B arrangement reported a longer minimum residence time and higher plug flow characteristics. Numerical results verified the trend mentioned with the water model. The numerical study showed also that cold and hot steel affected considerably the flow patterns of steel due to the existence of buoyancy forces. In the case of a step-input of cold steel, bypass-flow was intensified for the bare tundish and the tundish with a W&B arrangement. When a step input of hot steel is introduced into the system buoyancy forces make the steel to flow preferentially near the free surface.<br> The tundish with a TI&B arrangement showed the best flow characteristics with not splashing and negligible turbulence. This arrangement shows a slower response to thermal disturbs coming from the input making the tundish a less exposed reactor to the temperature changes and the consequent changes in flow patterns usually found in real casting operations.

収録刊行物

  • ISIJ international

    ISIJ international 39(5), 455-462, 1999-05-15

    The Iron and Steel Institute of Japan

参考文献:  17件中 1-17件 を表示

  • <no title>

    AHUJA R.

    Proc. 24th Annual Conf. of Metallurgists 73, 1985

    被引用文献1件

  • <no title>

    TSUKOBURA J.

    24th Annual Conf. of Metallurgists 124, 1985

    被引用文献2件

  • <no title>

    YOUDUO H. E.

    Acta Metall. Sin. 2, 93, 1988

    被引用文献1件

  • <no title>

    SZEKELY J.

    Phys. Chem. Hydrod. 9, 453, 1987

    被引用文献2件

  • <no title>

    JOO S.

    Metall. Trans. 24B, 755, 1993

    被引用文献4件

  • <no title>

    TACKE K. H.

    Steel Res. 58, 262, 1987

    被引用文献7件

  • <no title>

    RASMUSSEN P.

    Proc. 77th Steelmaking Conf. 219, 1994

    被引用文献2件

  • <no title>

    BOLGER D.

    77th Steelmaking Conf. 225, 1994

    被引用文献1件

  • <no title>

    MORALES R. D.

    Proc. 81st Steelmaking Conf. 325, 1998

    被引用文献1件

  • Continuous Casting, 1

    HEASLIP L. J.

    Chemical and Physical Interactions during Transfer Operations 67, 1983

    被引用文献1件

  • <no title>

    FOGLER H. S.

    Elements of Chemical Reaction Engineering 708, 1992

    被引用文献1件

  • <no title>

    SPALDING D. B.

    Int. J. Num. Math. Eng. 4, 551, 1972

    被引用文献2件

  • <no title>

    ANDERSON D. A.

    Computational Fluid Mechanics 221, 1984

    被引用文献1件

  • <no title>

    SZEKELY J.

    Fluid Flow Phenomena in Metals Processing 124, 1979

    被引用文献1件

  • <no title>

    de J. BARRETO-SANDOVAL J.

    ISIJ Int. 36, 543, 1996

    被引用文献1件

  • Solution of the Implicitly Discretized Fluid Flow Equations by Operator-Splitting

    ISSA R. I.

    J. Comput. Phys. 62, 40-65, 1985

    DOI 被引用文献13件

  • <no title>

    ISSA R. I.

    J. of Computational Physics 93, 388, 1991

    DOI 被引用文献1件

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