Hw. Huang et al., TECHNICAL NOTE - NUMERICAL ANOMALIES IN SIMULATING DIRECTIONAL SOLIDIFICATION OF BINARY-ALLOYS, Numerical heat transfer. Part A, Applications, 29(6), 1996, pp. 639-644
In a numerical model of the directional solidification of a binary all
oy, unreasonable results and/or oscillatory values of the concentratio
n can occur when simulations of solidification scenarios with large th
ermal gradients approaching plane front conditions are attempted.