CHT'01 - Advances in Computational Heat Transfer II. Proceedings of a Second Symposium
A NUMERICAL STUDY OF THE MEPHISTO EXPERIMENT
pages 1089-1096
ABSTRACT
A computational model is presented for the study of the solidification of a binary alloy. The enthalpy method has been modified and incorporated into both the commercial CFD code CFX [1] and an in-house code SOLCON [2]. The model has been used to simulate experiments on solidification of a bismuth-tin alloy which were performed during the 1997 flight of the MEPHISTO-4 experiment on the US Space Shuttle Columbia The effects of thermal and solutal convection in the microgravity environment are included. Comparisons of numerical solutions with actual microprobe results obtained from the MEPHISTO experiments are presented.