Effective two-phase flow parameters for heterogeneous porous media

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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 (US)
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, L.R. Bentley, J.F. Sykes, C.A. Brebbia, W.G. Gray, G.F. Pinder
PublisherA.A. Balkema
Pages755-762
Number of pages8
ISBN (Print)9058091252
StatePublished - Jan 1 2000
EventComputational Methods in Water Resources - Calgary, Canada
Duration: Jun 25 2000Jun 29 2000

Other

OtherComputational Methods in Water Resources
CountryCanada
CityCalgary
Period6/25/006/29/00

All Science Journal Classification (ASJC) codes

  • Earth and Planetary Sciences(all)
  • Engineering(all)
  • Environmental Science(all)

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  • Cite this

    Ataie-Ashtiani, B., Hassanizadeh, S. M., Celia, M. A., Oostrom, M., & White, M. D. (2000). Effective two-phase flow parameters for heterogeneous porous media. In L. R. Bentley, J. F. Sykes, C. A. Brebbia, W. G. Gray, G. F. Pinder, L. R. Bentley, J. F. Sykes, C. A. Brebbia, W. G. Gray, & G. F. Pinder (Eds.), Computational methods in water resources - Volume 2 - Computational methods,surface water systems and hydrology (pp. 755-762). A.A. Balkema.