using lammps version March 31, 2017. I am trying to simulate an
anisotropic system with non-periodic boundary condition along z direction of a
box. I wanted to change the box boundary along z after some intervals. Initially, the box boundaries were
orthogonal box = (5.961 5.961 5.96087) to (21.1832 21.1832 23.4232)
I used change_box command as shown:
change_box all z delta 0.0 2.24 boundary p p m units box
orthogonal box = (5.66715 5.66715 5.42676) to (21.477 21.477 26.6443)
I mentioned the change in lower boundary of z is 0 then why it gets
changed?. As I used it for multiple times and lower z value is changing inspite of change in zlo is 0. Also, the change is not 2.24, it is greater than 2.24.
What is the reason behind this?