Mean flow generation in rotating anelastic two-dimensional convection
Fluid Dynamics
2016-02-29 v1
Abstract
We investigate the processes that lead to the generation of mean flows in two-dimensional anelastic convection. The simple model consists of a plane layer that is rotating about an axis inclined to gravity. The results are two-fold: firstly we numerically investigate the onset of convection in three-dimensions, paying particular attention to the role of stratification and highlight a curious symmetry. Secondly, we investigate the mechanisms that drive both zonal and meridional flows in two dimensions. We find that, in general, non-trivial Reynolds stresses can lead to systematic flows and, using statistical measures, we quantify the role of stratification in modifying the coherence of these flows.
Keywords
Cite
@article{arxiv.1602.08326,
title = {Mean flow generation in rotating anelastic two-dimensional convection},
author = {Laura K. Currie and Steven M. Tobias},
journal= {arXiv preprint arXiv:1602.08326},
year = {2016}
}
Comments
28 pages, 9 figures