PORE SCALE MODELING OF FLUID TRANSPORT USING DISCRETE BOLTZMANN METHODS

摘要

The utility of the lattice Boltzmann method for modeling fluid flow in complex geometries like porous materials is examined. After study of some simple test cases, results from a large scale simulations of fluid flow through digitized Fountaine sandstone, generated by X-Ray microtomography will be presented. Reasonably good agreement was found when compared to experimentally determined values of permeability for similar rocks. We also calculate relative permeability curves as a function of fluid saturation and driving force. The potential for modeling flows in other microstructures of interest to concrete technology will be discussed.