Lagrangian statistics in fully developed turbulence
Chaotic Dynamics
2007-05-23 v1 Fluid Dynamics
Abstract
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.
Cite
@article{arxiv.nlin/0402032,
title = {Lagrangian statistics in fully developed turbulence},
author = {L. Biferale and G. Boffetta and A. Celani and A. Lanotte and F. Toschi},
journal= {arXiv preprint arXiv:nlin/0402032},
year = {2007}
}
Comments
4 pages, 5 figures