Modeling Nondilute Species Transport Using the Thermodynamically Constrained Averaging Theory
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 crossâcoupled 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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Sep 01, 2018
- Source ID
- 10.1029/2017wr022471
Entities
People
- A. Crockett
- Carl Timothy Kelley
- Cass T. Miller
- D. H. Giffen
- M. W. Farthing
- P. B. Schultz
- T. M. Weigand
- William G Gray
Organizations
- Army Research Office
- Coastal and Hydraulics Laboratory
- National Science Foundation
- North Carolina State University
- University of North Carolina at Chapel Hill