[lammps-users] Question regarding reflective wall with spherical surface

Hello everyone,

I am currently trying to perform a simulation in which the a droplet surrounded by its vapor is contained inside a spherical region. In order to maintain the atoms inside the region I am trying to use the reflective wall option in lammps but this does not allow for a spherical region as the wall. A constraint of this shape is only accepted using the indent fix or the wall/region which generates a repulsive force back to the striking atoms. The system is composed of an LJ fluid. I would appreciate for any suggestions to achieve this constraint.

Thank You!,
Jesus Gutierrez

What is wrong with using fix wall/region?