Transport properties of heavy particles in high Reynolds number turbulence

The statistical properties of heavy particle trajectories in high Reynolds
numbers turbulent flows are analyzed. Dimensional analysis assuming
Kolmogorov scaling is compared with the result of numerical simulation
using a synthetic turbulence advecting field. The non-Markovian nature of
the fluid velocity statistics along the solid particletrajectories is put
into evidence,and its relevance in the derivation of Lagrangian transport
models is discussed.