Role of corner interfacial area in uniqueness of capillary pressure-saturation- interfacial area relation under transient conditions

Modeling support of functional relationships between capillary pressure, saturation, interfacial area and common lines

Computational pore-scale network models describe two-phase porous media ̄ow systems by resolving individual interfaces at the pore scale, and tracking these interfaces through the pore network. Coupled with volume averaging techniques, these models can reproduce relationships between measured variables like capillary pressure, saturation, and relative permeability. In addition, these models all...

A functional relationship between capillary pressure, saturation, and interfacial area as revealed by a pore-scale network model

The constitutive relationships required for the parameterization of multiphase flow and transport problems are of critical importance to hydrologic modeling. Recently, a hypothesis has been developed that predicts a functional relationship between capillary pressure, saturation, and interfacial area. A network model was developed to test this hypothesis. Microscale physical processes were simul...

Direct Simulations of Interface Dynamics: Linking Capillary Pressure, Interfacial Area and Surface Energy

We perform direct numerical simulations of drainage by solving NavierStokes equations in the pore space and employing the Volume Of Fluid (VOF) method to track the evolution of the fluid-fluid interface. After demonstrating that the method is able to deal with large viscosity contrasts and to model the transition from stable flow to viscous fingering, we focus on the definition of macroscopic c...

Kinetic Modeling of Sunflower Oil Methanolysis Considering Effects of Interfacial Area of Reaction System

Relating Capillary Pressure to Interfacial Areas

Experiments were performed on transparent two-dimensional micro-fluidic porous systems to investigate the relationships among capillary pressure and the interfacial areas per volume among two fluid phases and one solid phase. Capillary pressures were calculated from the observed interfacial curvature of the wetting – non-wetting interface, and these correlated closely to externally measured val...