I recently downloaded the LAMMPS input script for Couette flow and am having trouble figuring out how to make the flow with slip and no slip boundary conditions. Is there a way to ensure that the velocity of the atoms at the wall equals the velocity of the wall? I am also looking to make slip conditions so that the velocity of the atoms at the wall is slightly less than the velocity of the wall.
What method can be used to achieve these results? I know that by increasing temperature, the atoms will move much faster than the wall and that by decreasing temperature, the atoms will move slower, but I think there must be another way.
Any help would be much appreciated.