Kinetic energy cascades in quasi-geostrophic convection in a spherical shell

Details Kinetic energy cascades in quasi-geostrophic convection in a spherical shell Kinetic energy cascades in quasi-geostrophic convection in a spherical shell

2011-11-25

arxiv.org/abs/1111.5875v1

Physics

Fluid Dynamics

Scientific paper

We consider triadic nonlinear interaction in the Navier-Stokes equation for quasi-geostrophic convection in a spherical shell. This approach helps understanding the origin of kinetic energy transport in the system and the particular scheme of mode interaction, as well as the locality of the energy transfer. The peculiarity of convection in the sphere, concerned with excitation of Rossby waves, is considered. The obtained results are compared with our previous study in Cartesian geometry.

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