Superdiffusion of massive particles induced by multi-scale velocity fields
Fluid Dynamics
2015-05-13 v2 Computational Physics
Abstract
We study drag-induced diffusion of massive particles in scale-free velocity fields, where superdiffusive behavior emerges due to the scale-free size distribution of the vortices of the underlying velocity field. The results show qualitative resemblance to what is observed in fluid systems, namely the diffusive exponent for the mean square separation of pairs of particles and the preferential concentration of the particles, both as a function of the response time.
Cite
@article{arxiv.0907.3444,
title = {Superdiffusion of massive particles induced by multi-scale velocity fields},
author = {Reza M. Baram and Pedro G. Lind and José S. Andrade and Hans J. Herrmann},
journal= {arXiv preprint arXiv:0907.3444},
year = {2015}
}
Comments
5 pages, 5 figures. Accepted for publication in EPL