Numerical Simulation on the Solidification of ZA27 Alloy by a Two-Phase Flow Model
ZA27 alloy solidifies in the way of paste-solidification, and results in gravity segregation. The two-phase flow model was developed on the basis of the solidification characteristic of the ZA 27 alloy. And the governing equations of the solidification process were differentiated and computed in a 3-D cylindrical coordinate system through a heat and fluid simulation software package (PHOENICS). The computation of the concentration field indicated a segregation of Al, and is in good agreement with the experiments. This model could simulate the convection and the gravitational segregation during the solidification.
Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie
Z. L. Zhang et al., "Numerical Simulation on the Solidification of ZA27 Alloy by a Two-Phase Flow Model", Materials Science Forum, Vols. 475-479, pp. 3203-3206, 2005