Hello everyone,

I have question about periodic boundary conditions in the forcite module dynamcis task.

As I construct a cell with two kind of materials by "Build layers", I would like to perform a fluid diffusion through another molecular layer.

As I thought the this cuboid cell shall have periodic bounday conditions in x,y,z directions.

And when I perform the dynamics task in Forcite module, for the animation of the results, the fluid molecules went out of the cell, I am confused about the boundary conditions in this case.

Is anyone can explain about this, thanks a lot!