3次元 SPH 法による回転円板端部から飛散する液体の数値シミュレーション

抄録

Three-dimensional simulation using an incompressible SPH method is carried out to investigate the scattering behavior of a liquid film flow spreading from the edge of a rotating disk. Computational domain is limited to a fan-shaped region near the edge of the disk using a periodic boundary condition in order to reduce the computational cost while keeping the spatial resolution as high as possible. The numerical results qualitatively agree with the experimental results though the number of ligaments is 1/2 to 1/3 of the experimental values. It is also found that droplets of nearly uniform diameters can be obtained by properly placing radial grooves at the edge.