Solute transport in bounded porous media characterized by generalized sub-Gaussian log-conductivity distributions

There are increasing evidences that probability distributions and associated statistical moments of a variety hydrogeological soil science variables their spatial increments display distinctive scale-dependent features not captured by typical Gaussian model. A Generalized Sub-Gaussian (GSG) model is able to capture key aspects this pattern. We present the results suite computational analyses set in Monte Carlo framework aimed at assessing impact GSG structure log hydraulic conductivity (Y) on transport conservative solute through three-dimensional bounded porous medium under steady-state saturated Darcy flow. Our indicate longitudinal spreading plume average significantly smaller for than Y fields. Otherwise, velocity field arising from induces enhanced stretching with respect what can be observed setting, aspect potentially influencing strength mixing within these two types domains. also find that, some cases, it may difficult identify nature underlying relying solely observations concentrations migrating system. In regard, we show action local dispersion tends mask influence Sub-Gaussianity major metrics.