Author(s): Mark A. Cushey; Yoram Rubin
Linked Author(s): Yoram Rubin
Keywords: No Keywords
Abstract: The inter-relationship between heterogeneities in subsurface hydraulic properties and physical nonequilibrium processes associated with the sorption of solutes are analyzed for field-scale transport in three-dimensional porous media. The analysis is completed using a model which couples a stochastic technique for generating three-dimensional flow fields with a mobile-immobile domain model to account for sorption and intraparticle mass diffusion. For statistically isotropic formations, the cumulative distribution function (CDF) of local solute concentrations is found to resemble a truncated normal distribution under certain conditions. For statistically anisotropic formations, the CDF of reactive solute concentrations is found to resemble a log-normal distribution for all cases considered. Tracer concentration CDFs are found to be nonGaussian for all formations and conditions considered.
Year: 1997