Preferential Sampling of Elastic Chains in Turbulent Flows
Fluid Dynamics
2019-01-11 v2
Abstract
A string of tracers, interacting elastically, in a turbulent flow is shown to have a dramatically different behaviour when compared to the non-interacting case. In particular, such an elastic chain shows strong preferential sampling of the turbulent flow unlike the usual tracer limit: an elastic chain is trapped in the vortical regions and not the straining ones. The degree of preferential sampling and its dependence on the elasticity of the chain is quantified via the Okubo-Weiss parameter. The effect of modifying the deformability of the chain, via the number of links that form it, is also examined.
Cite
@article{arxiv.1809.00333,
title = {Preferential Sampling of Elastic Chains in Turbulent Flows},
author = {Jason R. Picardo and Dario Vincenzi and Nairita Pal and Samriddhi Sankar Ray},
journal= {arXiv preprint arXiv:1809.00333},
year = {2019}
}
Comments
6 pages, 4 figures