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[lammps-users] change_box delta command
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[lammps-users] change_box delta command

From: JAGROOP KAUR <jagroopk610@...24...>
Date: Sat, 16 Sep 2017 02:51:33 +0530

Hi all,

I am 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)

As 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?

Thanks and best regards,
Jagroop Kaur
Research Scholar,
Thapar University, Patiala.