解説
粉体シミュレーションによる粒子偏析現象の解析
キーワード:
Equivalent friction coefficient,
Size segregation index,
Percolation index,
DEM/CFD simulation,
Suction filling
2017 年 54 巻 2 号 p. 113-121
詳細
2017 年 54 巻 2 号 p. 113-121
A method for analyzing quantitatively the effects of particle shape and size distribution on the size segregation of particles using DEM simulation, which employ spherical particles with an equivalent friction coefficient to efficiently incorporate the effect of particle shape was proposed. In order to quantitatively evaluate the particle size segregation occurring during gravity filling of a container, two metrics were used: a segregation index and the percolation index.
Moreover it was indicated that a combined CFD/DEM approach was required to apply this method to a design of a high–speed suction filling process of fine powder.
