乱流中の固体粒子群の非一様分布

抄録

We propose that the Stokes-number dependence of inertial-particle clustering in turbulence is explained in terms of the structures extracted from the coarse-grained fluid acceleration, and investigate the spatial correlation between the structures and the clusters of particles. To verify this proposal, we conduct direct numerical simulations of the inertial particles subjected to the linear Stokes drag and suspended in homogeneous isotropic turbulence.