Simple shear flow with lammps

Dear all,

I want to have a simple shear flow in my simulation box which means zero velocity in the middle of the simulation box.
I am using :

fix 1 all nvt/sllod temp 1.35 1.35 0.5 tchain 1
fix 2 all deform 1 xz erate 0.03 remap v

but this is producing a linear flow with the zero and the maximum velocity in the bottom and top of the simulation box respectively.

Is there any idea?

Best regards,

That's the way fix deform and fix nvt/sllod work. See their doc
pages. It is equivalent to a flow with 0 in the middle and +/- v/2
at the top and bottom.