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Computation of Microsegregation and Microstructure in Solidification with Fluid Convection

Published online by Cambridge University Press:  10 February 2011

D. Juric
D. Juric*
Affiliation:
George W. Woodruff School of Mechanical Engineering Georgia Institute of Technology, Atlanta, GA 30332-0405
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Abstract

The effects of fluid flow on the dendritic solidification morphology of pure materials is studied using a computational methodology based on a two-dimensional front tracking/finite difference method. A general single-field formulation is presented for the full coupling of phase change, fluid flow, and heat transport in both the solid and liquid phases. This formulation accounts for interfacial rejection/absorption of latent heat, interfacial anisotropies, discontinuities in material properties between the liquid and solid phases, shrinkage/expansion upon solidification and motion and deformation of the solid. Numerical results are presented for the dendritic solidification of pure succinonitrile in a shear flow. Comparison with solidification into a quiescent liquid indicates that fluid convection increases the overall rate of solidification while the growth rate of the leading dendrite tip is unchanged.

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 538: Symposium J – Multiscale Modelling of Materials , 1998, 163
Copyright
Copyright © Materials Research Society 1999

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References

[1] Tsiveriotis, K. and Brown, R. A., Int. J. Num. Meth. Fluids, 16, 827 (1993).Google Scholar
[2] Ungar, L.H., Ramprasad, N. and Brown, R. A., J. Sci. Comput.,3, 77 (1988).Google Scholar
[3] Schmidt, A., J. Comp. Phys., 125, 293 (1996).Google Scholar
[4] Kobyashi, R., Physica D, 63, 410 (1993).Google Scholar
[5] Murray, B.T., Wheeler, A.A. and Glicksman, M.E., J. Cryst. Growth, 154, 386 (1995).Google Scholar
[6] Wheeler, A.A., Boettinger, W.J. and McFadden, G.B., Phys. Rev. A, 45, 7424 (1992).Google Scholar
[7] Warren, J.A. and Boettinger, W.J., Acta Metall., 43, 689 (1995).Google Scholar
[8] Karma, A. and Rappel, W.-J., Phys. Rev. Letters, 77, 4050 (1996).Google Scholar
[9] Juric, D. and Tryggvason, G., J. Comp. Phys, 123, 127 (1996).Google Scholar
[10] Juric, D. and Tryggvason, G., (ASME FED-Vol. 234, New York, 1995), p. 141.Google Scholar
[11] Diepers, H.J., Beckermann, C. and Steinbach, I., in Solidification Processing 1997, p. 426.Google Scholar
[12] Tong, X., Beckermann, C. and Karma, A., in Modeling of Casting, Welding and Advanced Solidification Processes VIII, edited by Thomas, B.G. and Beckermann, C. (TMS, Warrendale, PA, 1998) pp. 613–620.Google Scholar
[13] Juric, D. and Tryggvason, G., Int. J. Multiphase Flow, 24, 387 (1998).Google Scholar
[14] Juric, D., in Modeling of Casting, Welding and Advanced Solidification Processes VIII, edited by Thomas, B.G. and Beckermann, C. (TMS, Warrendale, PA, 1998) pp. 605–612.Google Scholar
[15] Harlow, F.H. and Welch, J.E., Physics of Fluids, 8, 2182 (1965).Google Scholar
[16] Chorin, A.J., Mathematics of Computation, 22, 745 (1968).Google Scholar
[17] Glicksman, M.E., Schaefer, R.J. and Ayers, J.D., Metall. Trans. A, 7, 1747 (1976).Google Scholar