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On the onset of low-Prandtl-number convection in rotating spherical shells: non-slip boundary conditions

Author
Net, M.; Garcia, F.; Sanchez, J.
Type of activity
Journal article
Journal
Journal of fluid mechanics
Date of publication
2008-04
Volume
601
First page
317
Last page
337
DOI
https://doi.org/10.1017/S002211200800061X Open in new window
Repository
http://hdl.handle.net/2117/8788 Open in new window
URL
http://journals.cambridge.org/action/displayFulltext?type=1&fid=1846520&jid=FLM&volumeId=601&issueId=-1&aid=1846512 Open in new window
Abstract
Accurate numerical computations of the onset of thermal convection in wide rotating spherical shells are presented. Low-Prandtl-number (σ) fluids, and non-slip boundary conditions are considered. It is shown that at small Ekman numbers (E), and very low σ values, the well-known equatorially trapped patterns of convection are superseded by multicellular outer-equatorially-attached modes. As a result, the convection spreads to higher latitudes affecting the body of the fluid, and increasing the ...
Citation
Net, M.; Garcia, F.; Sánchez, J. On the onset of low Prandtl number convection in rotating spherical shells: non-slip boundary conditions. "Journal of Fluid Mechanics", 15 Gener 2008, vol. 601, p. 317-337.
Group of research
DF - Dinàmica de Fluids: formació d'estructures i aplicacions geofísiques

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