Modeling Nondilute Species Transport Using the Thermodynamically Constrained Averaging Theory
Year: 2018
Type: article
Abstract: Nondilute transport in porous media results in fronts that are much sharper in space and time than the corresponding transport of a conservative, nonreactive dilute species. A thermodynamically constrained averaging theory model for such situations is developed. A novel closure scheme is formulated, which is cross‐coupled between flow and transport in its most general form. Experiments are performed to investigate the effects of density, viscosity, and chemical activity. An adaptive numerical approximation method is developed to efficiently solve the formulated model. Parameter estimation is performed, and excellent agreement between laboratory data and model simulations is obtained. Accurate prediction of experimental data not used to estimate model parameters is found. It is also shown that chemical activity effects contribute to asymmetric breakthrough curves for nondilute transport in porous medium systems.
Source: Water Resources Research
DOI: 10.1029/2017wr022471
Authors: T. M. Weigand, P. B. Schultz, D. H. Giffen, M. W. Farthing, A. Crockett, C. T. Kelley, W. G. Gray, C. T. Miller
Language: English
Subfield: Environmental Engineering
Field: Environmental Science
Domain: Physical Sciences
Open Access status: bronze
Awards: G1296809668, G3088631851, Elucidating Physicochemical Processes Affecting Transport Phenomena Resulting from Hydraulic Fracturing of Natural Gas Reservoirs, G3316355963, G3606913056, G3804622776, G4424797671, Iterative Methods for Nonlinear Equations and Optimization, Advancing Mechanistic Understanding of Two-Fluid-Phase Flow in Porous Medium Systems, G657448715, G7452299184
OpenAlex ID: W2884224367