Lagrangian statistics in fully developed turbulence

Thumbnail Image

Date

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

Description

The statistical properties of fluid particles transported by a fully developed turbulent flow are investigated by means of high resolution direct numerical simulations. Single trajectory statistics is investigated in a time range spanning more than three decades, from less than a tenth of the Kolmogorov timescale up to one large-eddy turnover time. Acceleration and velocity statistics show a neat quantitative agreement with recent experimental results. Trapping effects in vortex filaments give rise to enhanced small-scale intermittency on Lagrangian observables.
4 pages, 5 figures

Keywords

Chaotic Dynamics, Fluid Dynamics

Citation

URI

http://salesiana.dossiersoluciones.com/handle/123456789/80668

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/nlin/0402032
 http://arxiv.org/abs/nlin/0402032

Collections

arXiv