19 citations · 42 across the 6 of their papers we have counts for
6 papers
Domino model in geodynamo
P. Hejda, M. Reshetnyak
Using Lagrangian formalism we consider evolution of the ensemble of interacting magnetohydrodynamic cyclones governed with Langevin type equations in the rotating medium. This prob…
Heat flux modulation in domino dynamo model
Maxim Reshetnyak, Pavel Hejda
Using the domino dynamo model, we show how variations of the heat flux at the core-mantle boundary change the frequency of geomagnetic field reversals. In fact, we are able to demo…
Kinetic energy cascades in quasi-geostrophic convection in a spherical shell
Maxim Reshetnyak, Pavel Hejda
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 kinet…
Nonlinearity in a dynamo
P. Hejda, M. Reshetnyak
Using a rotating flat layer heated from below as an example, we consider effects which lead to stabilizing an exponentially growing magnetic field in magnetostrophic convection in…
Direct and inverse cascades in the geodynamo
M. Reshetnyak, P. Hejda
The rapid rotation of planets causes cyclonic thermal turbulence in their cores which may generate the large-scale magnetic fields observed outside the planets. We consider the mod…
Effects of anisotropy in geostrophic turbulence
P. Hejda, M. Reshetnyak
The Boussinesq model of convection in a flat layer with heating from below is considered. We analyze the effects of anisotropy caused by rapid rotation in physical and wave spaces…