How can large-scale twisted magnetic structures naturally emerge from buoyancy instabilities?We consider the three-dimensional instability of a layer of horizontal magnetic field in a polytropic atmosphere where, contrary to previous studies, the field lines in the initial state are not unidirectional....
Mesoscale flows in large aspect ratio simulations of turbulent compressible convection...(42.6) numerical simulation of fully compressible turbulent convection in a polytropic atmosphere, and focus on the properties of large-scale flows....
The effect of time-dependent γ-pumping on buoyant magnetic structuresIn this paper, we explore for the first time the interactions of the net downward, time-dependent, γ-pumping overlying an imposed layer of magnetic fluid, in a polytropic atmosphere....
Nonlinear instability of baroclinic atmosphere with reference to planetary scale disturbances... Specifically, we examine the sign of the second variation of a conserved functional for the case of a polytropic atmosphere (i.e....
