The classical Stribeck curve relates the friction coefficient (μ)
with the dimensionless Hersey number, which is used to describe
the combined influence of dynamic viscosity (η), rotational speed
(Ω) and the normal contact load applied (FN) in journal bearings.
Instead, in similar geometries and conditions to that used in this
work, the so-called hydrodynamic Stribeck parameter is defined as