The result of a 100 hour simulation on 120 processors...
This isosurface rendering shows the evolution of the disk over roughly one orbital period of the binary system. The two-armed spiral wave responsible for driving mass through the disk is clearly visible in the height of the disk. [click on image for mpeg animation]


Not surprisingly, the transport of material through the disk in the 3D simulation (dashed line) differs considerably from the results of the 2D model (solid line).

There appears to be additional vertical wave modes that affect the transport at small radii, in close to the black hole. This 2D slice through one side of the disk shows the density structure of the disk interior. [click on image for mpeg animation]

We can visualize the spiral pattern responsible for transport through the disk by coloring the disk surface according to the radial velocity. [click on image for mpeg animation]

This is clear scientific evidence that hockey is a cosmic sport...