Nonlinear Sciences – Chaotic Dynamics
Scientific paper
2006-06-14
Nonlinear Sciences
Chaotic Dynamics
4 pages, 4 figures
Scientific paper
A statistical description of heavy particles suspended in incompressible rough self-similar flows is developed. It is shown that, differently from smooth flows, particles do not form fractal clusters. They rather distribute inhomogeneously with a statistics that only depends on a local Stokes number, given by the ratio between the particles' response time and the turnover time associated to the observation scale. Particle clustering is reduced when increasing the fluid roughness. Heuristic arguments supported by numerics are used to explain this effect in terms of the algebraic tails of the probability density function of the velocity difference between two particles. These tails are a signature of events during which particle couples approach each other very closely.
Bec Jeremie
Cencini Massimo
Hillerbrand Rafaela
No associations
LandOfFree
Clustering of heavy particles in the inertial range of turbulence does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Clustering of heavy particles in the inertial range of turbulence, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Clustering of heavy particles in the inertial range of turbulence will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-197294