Continuous-time random-walk model of transport in variably saturated heterogeneous porous media
Continuous-time random-walk model of transport in variably saturated heterogeneous porous media
We propose a unified physical framework for transport in variably saturated porous media. This approach allows fluid flow and solute migration to be treated as ensemble averages of fluid and solute particles, respectively. We consider the cases of homogeneous and heterogeneous porous materials. Within a fractal mobile-immobile continuous time random-walk …