Large-scale bottleneck effect in two-dimensional turbulence
Fluid Dynamics
2010-09-02 v1 Chaotic Dynamics
Abstract
The bottleneck phenomenon in three-dimensional turbulence is generally associated with the dissipation range of the energy spectrum. In the present work, it is shown by using a two-point closure theory, that in two-dimensional turbulence it is possible to observe a bottleneck at the large scales, due to the effect of friction on the inverse energy cascade. This large-scale bottleneck is directly related to the process of energy condensation, the pile-up of energy at wavenumbers corresponding to the domain size. The link between the use of friction and the creation of space-filling structures is discussed and it is concluded that the careless use of hypofriction might reduce the inertial range of the energy spectrum.
Cite
@article{arxiv.1009.0126,
title = {Large-scale bottleneck effect in two-dimensional turbulence},
author = {Wouter J. T. Bos and Jean-Pierre Bertoglio},
journal= {arXiv preprint arXiv:1009.0126},
year = {2010}
}