Physics – Fluid Dynamics
Scientific paper
2008-02-19
Phys. Rev. Lett. 101, 174503 (2008)
Physics
Fluid Dynamics
4 pages, 2 figures
Scientific paper
10.1103/PhysRevLett.101.174503
We discuss the probability distribution of relative speed $\Delta V$ of inertial particles suspended in a highly turbulent gas when the Stokes numbers, a dimensionless measure of their inertia, is large. We identify a mechanism giving rise to the distribution $P(\Delta V) \sim \exp(-C |\Delta V|^{4/3})$ (for some constant $C$). Our conclusions are supported by numerical simulations and the analytical solution of a model equation of motion. The results determine the rate of collisions between suspended particles. They are relevant to the hypothesised mechanism for formation of planets by aggregation of dust particles in circumstellar nebula.
Gustavsson Kristian
Mehlig Bernhard
Uski Ville
Wilkinson Mark
No associations
LandOfFree
Variable-range Projection Model for Turbulence-driven Collisions 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 Variable-range Projection Model for Turbulence-driven Collisions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable-range Projection Model for Turbulence-driven Collisions will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-646678