金属粉床積層造形プロセスに対する格子ボルツマン法とマルチフェーズフィールド法

抄録

A Multi-phase field lattice Boltzmann method for melting, gas/liquid flow and solidification in powder bed fusion process of Ni alloy additive manufacturing is developed. Improved lattice kinetic scheme is adapted for gas/liquid free surface flow simulation. High speed calculation is achieved by MPI&OpenMP hybrid parallelization. It is confirmed that this method has high capability to simulate the powder bed fusion process in detail.