Abstract
Through solutions of appropriate forms of the Navier-Stokes equation, the intermixing of fluid within gas-stirred ladles, with asymmetric single and multiporous plugs, can be modeled quite satisfactorily. In this study, mixing behavior and mixing mechanisms are analyzed as a function of porous plug location, tracer injection point, and ladle monitoring point. It is shown that off-centered bubbling gives the most consistent results in terms of minimizing mixing times, since angular momentum intermixes fluid across the width of a ladle. Comparisons between mathematical and experimental data are presented.
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J. Szekely, H.J. Wang, and K.M. Kiser:Metall. Trans. B, 1976, vol. 7B, pp. 287–95.
T. DebRoy and A.K. Majumdar:J. Met., 1981, November, pp. 42–47.
J.H. Grevet, J. Szekely, and N. El-Kaddah:Int. J. Heat Mass Transfer, 1982, vol. 25 (4), pp. 487–97.
Y. Sahai and R.I.L. Guthrie:Metall. Trans. B, 1982, vol. 13B, pp. 193–202.
Y. Sahai and R.I.L. Guthrie:Metall. Trans. B, 1982, vol. 13B, pp. 203–11.
M. Salcudean, C.H. Low, A. Hurda, and R.I.L. Guthrie:Chem. Eng. Comm., 1982, vol. 21, pp. 89–103.
M. Salcudean, K.Y.M. Lye, and R.I.L. Guthrie:Can. J. Chem. Eng., 1985, vol. 63, pp. 51–61.
F. Boysan and S.T. Johansen:Proc. Int. Seminar on Refining and Alloying of Liquid Aluminium and Ferroalloys, T.A. Engh, S. Lyng, and H.A. Oye, eds., Aluminum-Verlag, Dusseldorf, Germany, 1985, pp. 267–88.
K. Nakanishi, T. Fujii, and J. Szekely:Ironmaking and Steelmaking, 1975, no. 3, pp. 193–97.
S. Asai, T. Okamoto, J.C. He, and I. Muchi:Trans. Iron Steel Inst. Jpn., 1983, vol. 23, pp. 43–50.
M. Sano and K. Mori:Trans. Iron Steel Inst. Jpn., 1983, vol. 23, pp. 169–75.
O. Haida, T. Emi, S. YamActa, and F. Sudo:Scaninject II, MEFOS and Jernkontoret, June 1980, Lulea, Sweden, Paper No. 20.
S. Kim, R.J. Fruehan, and R.I.L. Guthrie:Steelmaking Proc, ISS-AIME, Pittsburgh, PA, 1987, pp. 107–18.
D. Mazumdar: Ph.D. Thesis, Department of Mining and Metallurgical Engineering, McGill University, Montreal, PQ, Canada, 1985.
C.J. Dobson and M. Robertson:Model Studies of Gas Stirred Ladles, Internal Report, BHP Steel, Australia, 1986.
T. Marujama, N. Kamishima, and T. Mizushina:J. Chem. Eng. Jpn., 1984, vol. 17 (2), pp. 120–26.
W.P. Jones and B.E. Launder:Int. J. Heat Mass Transfer, 1972, vol. 15, pp. 301–14.
B.E. Launder and D.B. Spalding:Computer Methods in Appl. Mech. Eng., 1974, vol. 3, pp. 269–89.
S. Joo: Ph.D. Thesis, McGill University, Montreal, PQ, Canada, 1989.
S.V. Patankar and D.B. Spalding:Int. J. Heat Mass Transfer, 1972, vol. 15, p. 1787.
D.B. Spalding:Heat Transfer in Turbulent Buoyant Convection, D.B. Spalding and N. Afgan, eds., Hemisphere Publishing Corporation, New York, NY, 1977, p. 569.
D. Mazumdar and R.I.L. Guthrie:Metall. Trans. B, 1985, vol. 16B, pp. 83–90.
R.J. Fruehan:Proc. Int. Syrnp. on Ladle Steelmaking and Furnaces, CIM, Montreal, PQ, Canada, Aug. 1988, pp. 92–110.
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Formerly Postdoctoral Fellow, McGill Metals Processing Center, McGill University
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Joo, S., Guthrie, R.I.L. Modeling flows and mixing in steelmaking ladles designed for single- and dual-plug bubbling operations. Metall Trans B 23, 765–778 (1992). https://doi.org/10.1007/BF02656455
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DOI: https://doi.org/10.1007/BF02656455