Sticky elastic collisions
Fluid Dynamics
2015-06-12 v1 Chaotic Dynamics
Abstract
The effects of purely elastic collisions on the dynamics of heavy inertial particles is investigated in a three-dimensional random incompressible flow. It is shown that the statistical properties of inter-particle separations and relative velocities are strongly influenced by the occurrence of sticky elastic collisions - particle pairs undergo a large number of collisions against each other during a small time interval over which, hence, they remain close to each other. A theoretical framework is provided for describing and quantifying this phenomenon and it is substantiated by numerical simulations. Furthermore, the impact of hydrodynamic interactions is discussed for such a system of colliding particles.
Cite
@article{arxiv.1212.5017,
title = {Sticky elastic collisions},
author = {Jeremie Bec and Stefano Musacchio and Samriddhi Sankar Ray},
journal= {arXiv preprint arXiv:1212.5017},
year = {2015}
}
Comments
10 pages, 6 figures