The capillary pressure-saturation relation is one of the key constitutive equations used for modeling multiphase (or partially saturated) flow in porous materials. It known that this empirical depends strongly on dynamic conditions, but impact a heterogeneity interface relationship has been studied less. present study employed optical imaging to visualize two-phase drainage under different inje...

Computations of the relative permeability curves were made through their representation by two functions for wetting and nonwetting phases. Each function contains one parameter that controls shape curves. The values these parameters are chosen to minimize an objective function, is represented as a weighted sum squared differences between experimentally measured data corresponding calculated mat...