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.
Acknowledgments
Prof. Graham Fleming (Vice Chancellor for Research, UC Berkeley)
Prof. Eliot Quataert on behalf of The Theoretical Astrophysics Center and the Astronomy Department (UC Berkeley)
Prof. Philip S. Marcus on behalf of the Mechanical Engineering Department (UC Berkeley)
Prof. Michael Manga (Earth and Planetary Science, UC Berkeley)
Prof. Evan Variano (Civil and Environmental Engineering, UC Berkeley)