Dear LAMMPS users,
Inside a Fe bcc crystal I have introduced randomly some additional atoms the following way:
create_atoms 1 random 5000 6538 crystalFe
Now I would like to set their velocity (all the same). This can be done with the command velocity group-id set v_x v_y v_z.
The question is how to group the atoms that I have introduced randomly. Any idea?
Many thanks in advance and best regards,