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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.