Journal
PHYSICS OF FLUIDS
Volume 28, Issue 1, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4939300
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- Science and Technology Facilities Council (STFC)
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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 twofold: first, we numerically investigate the onset of convection in three-dimensions, paying particular attention to the role of stratification and highlight a curious symmetry. Second, 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. (C) 2016 AIP Publishing LLC.
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