[lammps-users] fix - rigid

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1

Hi All,

I have a question regarding using the “fix - rigid” command. I have two bodies 1 and 2. I made them interact with “LJ /cut 2.5” potential. At one stage of simulation I wanted one of the body to be rigid while the other body interacting the same as earlier. In this case, I was just wondering that if I make the body 2 rigid, do I have the interaction between the body 1 and 2 and body 1 described by “LJ /cut 2.5” ? Also in this case do I need to turn the “NVE” integration?

Thanks, in advance.

Peri.

2

Whether either body is rigid or not, you want them to interact
with each other the same way, e.g. by pair style lj/cut. You
can integrate either or both bodies with fix nve or with fix rigid.
You should use one of those on each body, but not both.

Steve