Regarding Rotation of 2D system

Dear All,

I want to rotate my 2D particle system such as it is placed on a disk which is rotating

with some angular velocity. I have used fix addtorque command but boundary is creating

problem.

I want to know which command i use to tackle this problem ?.

Thanks in advance.

Regards

Dear All,
I want to rotate my 2D particle system such as it is placed on a disk which
is rotating with some angular velocity. I have used fix addtorque command but boundary
is creating problem.

what kind of problem? and how?

I want to know which command i use to tackle this problem ?.

there is too little information here to give advice.

axel.

If by boundary, you mean periodic boundary, then you can't do it.
Periodic boundaries are fundamentally incompatible with rotating
systems, because angular momentum changes discontinuously each time a
particle is shifted by a periodic cell vector.

If you can construct a non-periodic system, then everything should
work just fine.

Aidan

Thanks for help.

One another question is that if i use non-periodic boundary condition then

atoms will loss. How i tackle atoms loss in non-periodic boundary condition.

If by boundary, you mean periodic boundary, then you can’t do it.
Periodic boundaries are fundamentally incompatible with rotating
systems, because angular momentum changes discontinuously each time a
particle is shifted by a periodic cell vector.

If you can construct a non-periodic system, then everything should
work just fine.

Aidan

2015-11-08 14:21 GMT-07:00 Axel Kohlmeyer <[email protected]>:

You could add a cylindrical wall or freeze atoms that leave the central region.

2015-11-13 18:06 GMT-07:00 Sandeep Kumar <[email protected]...>: