Influence of a position of the critical level inside a plane layer on the rise of magnetically and thermally driven instabilities

摘要

The system under consideration is a horizontal stratified plane layer between z=+/- d/2 filled by electrically conducting inviscid Boussinesq fluid rotating with a constant angular velocity Omega=Omega(z) over cap under a vertical gravitational field g=-g (z) over cap and a non-uniform right-lined magnetic field B-0. An adverse temperature gradient beta is applied to the layer. The imposed magnetic field in the form B-0=B-0(z-z(0))(y) over cap, where B-0 is a magnitude of the field, vertical bar z(0 vertical bar)