Elucidation of mechanisms of dendrite competitive growth by very-large-scale GPU phase-field simulations

2015 Fiscal Year Final Research Report

• Project/Area Number: 25289006
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Materials/Mechanics of materials
• Research Institution: Kyoto Institute of Technology
• Principal Investigator: Takaki Tomohiro 京都工芸繊維大学, 機械工学系, 准教授 (50294260)
• Co-Investigator(Kenkyū-buntansha): AOKI Takayuki 東京工業大学, 学術国際情報センター, 教授 (00184036) ; YAMANAKA Akinori 東京農工大学, 工学研究科, 准教授 (50542198)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: フェーズフィールド法 / GPU計算 / デンドライト / 凝固組織 / 競合成長

Outline of Final Research Achievements

We have enabled the very-large-scale phase-field simulation using the GPU supercomputer TSUBAME2.5 at Tokyo Institute of Technology. By performing the simulations during directional solidification for single-, bi-, and poly-crystals of a binary alloy, the mechanism of competitive growth between dendrites has been made clear. In addition, we have developed a simulation tool which can simulate the dendrite growth with melt flow by coupling phase-field method and lattice Boltzmann method.

Free Research Field

計算力学，材料力学，材料組織学