[Nek5000-users] Magnetic boundary conditions (especially (quasi) vacuum conditions)

[nek5000-users at lists.mcs.anl.gov]

Hello everyone,
I just started using Nek5000 and my group is currently thinking about 
using the code to simulate a precession driven dynamo in a ellipsoidal 
shell. For this, we would need to run an MHD Simulation with vacuum or 
quasi vacuum boundary conditions (the code we used so far used quasi 
vacuum conditions). Has anyone experience with implementing either of those?
I found an older post 
(http://lists.mcs.anl.gov/pipermail/nek5000-users/2011-July/001416.html) 
that mentioned bc's for the magnetic field that are different from the 
velocity conditions, but could not find any update on this.

Best whishes,
Jan