Effective two-phase flow parameters for heterogeneous porous media

B. Ataie-Ashtiani, S. M. Hassanizadeh, M. A. Celia, M. Oostrom, M. D. White

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


This is a theoretical study on the feasibility of replacing a medium containing heterogeneities with an equivalent homogeneous medium for the case of two-phase flow. The infiltration of dense nonaqueous phase liquids (DNAPL) in a water-saturated heterogeneous porous medium is investigated numerically. For two porous media with a periodic heterogeneity, the existence of a representative elementary volume (REV), related to the spatial scale of heterogeneities, is investigated. The upscaled permeabilities and constitutive relationships for the REV are numerically calculated and effects of heterogeneities are discussed. Numerical simulations are carried out for both heterogeneous and homogeneous representations of the considered porous media. Simulations with upscaled parameters reproduce the average behavior of the medium reasonably well.

Original languageEnglish
Title of host publicationComputational methods in water resources - Volume 2 - Computational methods,surface water systems and hydrology
EditorsL.R. Bentley, J.F. Sykes, C.A. Brebbia, W.G. Gray, G.F. Pinder
Number of pages8
ISBN (Print)9058091252, 978-9-05-809125-3
Publication statusPublished - 1 Jan 2000
Externally publishedYes
EventComputational Methods in Water Resources - Calgary, Canada
Duration: 25 Jun 200029 Jun 2000


ConferenceComputational Methods in Water Resources


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