[Archive] DUST boundary question

Message by EW:
I’m am trying to run a simulation in SPIS-DUST. It is a similar simulation that I previously ran in SPIS, but I am experimenting with the reflective boundary conditions. The top of my simulation box is defined as the Dirichlet boundary condition with potential set to 0, but at the end of the simulation the potential is not zero at the top of the box. Do you know why this would be the case when it is supposed to be zero by definition?