Having a greater box size in the z direction than specified in the region command.

Hello Users,

Could anybody please help me with this issue…PFA my LAMMPS input script.

My region dimensions are 4,4 and 3. The lattice constant is 5.4379. So, the box dimension in the z direction is 16.3137. I want to add an additional atom atop the moving atoms at the z-coordinate 17, 18, 19…N.

This is possible if I have the box size smaller than the region in the z-direction.

I‘ve observed that the simulation box is limited to the dimensions of the region. Could anybody please tell me how to have a separate box size compared to region size. I’d obviously have the box size smaller than the region size.

Could anybody please help me with this.

Regards,
Saketh.

NEWTADSI.txt (2.43 KB)

Hello Users,

Could anybody please help me with this issue..PFA my LAMMPS input script.

My region dimensions are 4,4 and 3. The lattice constant is 5.4379. So, the
box dimension in the z direction is 16.3137. I want to add an additional
atom atop the moving atoms at the z-coordinate 17, 18, 19…N.

This is possible if I have the box size smaller than the region in the
z-direction.

I‘ve observed that the simulation box is limited to the dimensions of the
region. Could anybody please tell me how to have a separate box size
compared to region size. I’d obviously have the box size smaller than the
region size.

this is nonsense.

you are probably mixing up ids and keywords.

you can define the box to be any size you want.

you can also define a region to be any size you want.
you can define as many regions as you want, but they
have to have different ids.

however, if you call create atoms with a region, only atoms
that fit into the region _and_ the box will be created.

axel.