Lagrangian statistics of inertial particles in turbulent flow.

Turbulent transport of material inclusions plays an important role in many natural and industrial situations. Being able to accurately model and predict the dynamics of dispersed particles transported by a turbulent carrier flow, remains a challenge. When the particles are neutrally buoyant and small (typically comparable in size with the dissipation scale of the surrounding turbulence) they are known to behave as tracers for fluid particles. However, in many practical situations, the particles are denser than the carrier fluid and/or larger than the dissipation scale. Their dynamics, which is then affected by so called inertial effects, deviates from that of fluid particles[1, 2, 3]. One critical and difficult point is to develop models which correctly describe the dynamics of particles over a wide range of sizes and density. [ABSTRACT FROM AUTHOR]