Shear viscosity calculated by perturbation theory and molecular dynamics for dense fluids

In this work, we propose a new model to calculate viscosity of dense fluids based on the reference part of the Weeks–Chandler–Andersen perturbation theory. The reference fluid intermolecular interactions are given by a repulsive soft‐sphere potential. The viscosity is calculated by means of a Chapman–Enskog equation corrected to high densities coupled with a density‐ and temperature‐dependent effective diameter. The viscosity is also calculated...