Intermittency in two-dimensional Ekman-Navier-Stokes turbulence
Chaotic Dynamics
2009-11-07 v1
Abstract
We study the statistics of the vorticity field in two-dimensional Navier-Stokes turbulence with a linear Ekman friction. We show that the small-scale vorticity fluctuations are intermittent, as conjectured by Nam et al. [Phys. Rev. Lett. vol.84 (2000) 5134]. The small-scale statistics of vorticity fluctuations coincides with the one of a passive scalar with finite lifetime transported by the velocity field itself.
Cite
@article{arxiv.nlin/0111066,
title = {Intermittency in two-dimensional Ekman-Navier-Stokes turbulence},
author = {G. Boffetta and A. Celani and S. Musacchio and M. Vergassola},
journal= {arXiv preprint arXiv:nlin/0111066},
year = {2009}
}
Comments
4 pages, 7 figures