Green-Kubo relations for the viscosity.

Dear LAMMPS Users/Developers,

I’m interested in calculating viscosities, but not for a homogeneous system.

In this message: Sarman states that you cannot use the Green-Kubo relation to simulate the viscosity of a fluid in a slit. He has an alternative to slits, displace one wall relative to other.

But, I want to calculate the viscosity in a pore, so I can’t really see a simple way to do that. Does anyone with experience in this matter can shed some light?

Best regards,

James Moraes de Almeida

You can find a list of various ways in LAMMPS to calculate
viscosity in Section 6.21 of the manual. I also suggest looking
in the literature to see how people do this for a pore.