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Convectons in a rotating fluid layer.

Beaume, Cédric and Bergeon, Alain and Kao, Hsien-Ching and Knobloch, Edgar Convectons in a rotating fluid layer. (2013) Journal of Fluid Mechanics, 717. 417-448. ISSN 0022-1120

(Document in English)

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Official URL: http://dx.doi.org/10.1017/jfm.2012.585


Two-dimensional convection in a plane layer bounded by stress-free perfectly conducting horizontal boundaries and rotating uniformly about the vertical is considered. Time independent spatially localized structures, called convectons, of even and odd parity are computed. The convectons are embedded within a self-generated shear layer with a compensating shear flow outside the structure. These states are organized within a bifurcation structure called slanted snaking and may be present even when periodic convection sets in supercritically. These interesting properties are traced to the presence of a conserved quantity and hence to the use of stress-free boundary conditions.

Item Type:Article
Additional Information:Thanks to Cambridge University Press editor. The definitive version is available at http://journals.cambridge.org The original PDF can be found at http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=8828304
HAL Id:hal-03526160
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > University of California - UC Berkeley (USA)
Laboratory name:
Deposited On:17 Oct 2013 07:03

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