Hydromagnetic stability of some non-dissipative flows subject to non- axisymmetric disturbances (Q1064897)

We study the linear stability of nondissipative flow of an electrically conducting fluid subject to non-axisymmetric disturbances in the following cases: (i) the radial flow of an incompressible fluid between two concentric porous circular cylinders in the presence of a radial magnetic field and ii) axial flow of a compressible fluid between two concentric circular cylinders permeated by a helical magnetic field \((0,B_{0\theta}(r),B_{0z})\) in a cylindrical coordinate system.