Dear Lammps users and developers
My question is about using a curved surface as wall model in Lammps by using “fix wall/region command”.
I want to model fluid flow through a cylinder while the lateral area of the cylinder acts as wall.(i mean wall model by using “fix wall region command”) but the two circles of this cylinder should not be walls. they should be entering and existing faces for fluid molecules.
How can i exclude the two ending circle area of the cylinder from being wall while lateral area of the cylinder is wall? (by using fix wall/region command" or any other appropriate command)