Accuracy and Computational Efficiency of the Phase-Field Models

Autor:	Kanae Oguchi, Toshio Suzuki
Rok vydání:	2008
Předmět:	Growth velocity Materials science Mechanics of Materials Interface (computing) Materials Chemistry Metals and Alloys Phase field models Polygon mesh Mechanics Dendrite (metal) Current (fluid) Condensed Matter Physics Supercooling
Zdroj:	Journal of the Japan Institute of Metals. 72:491-495
ISSN:	1880-6880 0021-4876
DOI:	10.2320/jinstmet.72.491
Popis:	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.
Databáze:	OpenAIRE
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