Berkeley Fluids Seminar

University of California, Berkeley

Bring your lunch and enjoy learning about fluids!

February 24, 2014

Dr. Cédric Beaume (Physics, UC Berkeley)

Stationary spatially localized states in rotating convection

We study two-dimensional convection in a horizontal fluid layer rotating around the vertical and heated from below. With stress-free boundary conditions, stationary spatially localized convection is present. These states are embedded in a background shear layer and lie on a pair of intertwined solution branches exhibiting "slanted snaking", meaning that less localized solutions are obtained by gradually increasing the forcing. Similar solutions, but with no-slip boundary conditions, are no longer embedded in a background shear and exhibit "standard snaking", i.e. snaking without a slant where all the localized solutions exist under the same conditions. An explanation of the numerical methods will be given.

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© Cédric Beaume