Accuracy and computational efficiency of the phase-field models

作者：Oguchi Kanae^*; Suzuki Toshio

来源：Journal of the Japan Institute of Metals, 2008, 72(7): 491-495.

DOI：10.2320/jinstmet.72.491

• phase-field model
• dendrite growth
• solute-trapping
• computational efficiency

Computational efficiencies and accuracies in various phase-field models were investigated: a phase-field model with the anti-trapping current method, a phase-field model with the reduced interface method and a standard phase-field model. Dependence of the mesh size on the growth velocity of a dendrite was examined. In the case of the low undercooling, the anti-trapping current method gave the most accurate result within 4% error reducing the calculation time by about 25% when the size of meshes was doubled. On the other hand, the reduced interface method gave the most accurate result within 5% error reducing the calculation time by about 25% with the doubled size of the meshes in the case of the high undercooling.

• 出版日期2008-7