Title: Concentration fluctuations of large Stokes number
particles in a one-dimensional random velocity field
Abstract:
The behavior of inertial particles in a Gaussian velocity field
is analyzed in the limit of large inertia, but keeping a finite
correlation time for the random field. The concentration
fluctuations have a non-trivial structure in velocity space,
which is very different from predictions from the short
correlation time limit. Concentration fluctuations appear
to be associated with depletion of the relative velocity
variance of colliding particles.