[FLASH-USERS] what is the kh_mhd module? Is it a kelvin helmholtz instability example?

Hi Flash users,
 
I saw no mention in the ug about this example, only mentioning inside the windtunnel with step example.
 
When I looked at the output plots (attached) it seems that it is also a point source like the sedov showing mhd kelvin helmholtz effects.
 
Is it so?
 
Thks!
 
Bst,
Victor