Visualisation of the disk structures. Top row: panels a) and b) show side and top views, respectively, of the disk density (orange), with the velocity vectors superimposed for μ = 5. Panels c) and d) are the same side and top views, but showing the plasma β parameter (colour map), over which we plot the magnetic field direction for the side view c) and the velocity vectors for the top view d). Bottom row: same as for the top row, but for the μ = 2 simulation. Each row has a different spatial scale.