The conventional representation arises when this pressure is set equal to the equilibrium pressure given by the capillary pressure - saturation function for unsaturated porous media, and this conventional approach leads to the Richards equation. The distinct form of each alternative model is based on the specific form of expression used to describe the dynamic capillary pressure. These models are based on an equation for conservation of mass of water, and a generalized linear law for water flux (Darcy’s law) containing a term called the dynamic capillary pressure. Several alternative mathematical models for describing water flow in unsaturated porous media are presented. Nieber, John Dautov, Rafail Egorov, Andrey Sheshukov, Aleksey Dynamic Capillary Pressure Mechanism for Instability in Gravity-Driven Flows Review and Extension to Very Dry Conditions Dynamic Capillary Pressure Mechanism for Instability in Gravity-Driven Flows Review and.
0 kommentar(er)
