shows a typical example of 3D distribution of dimensionless
pressure in a rough EHL problem. Since a part of the load is
carried by the surface asperities, the total pressure is composed of
hydrodynamic and asperity parts. For the case depicted in Fig. 3,
the simulation yields the asperity load ratio of 54%, which means
that the volume under the asperity pressure is 54% of that of the
total pressure.