Pore-scale modeling of multiphase flow and transport in water-wet porous media

E. Dalla, M. Hilpert, C. Miller, D. Pitea

Research output: Contribution to journalArticle

Abstract

Pore-scale modeling is appealing for investigating and obtaining macro-scale constitutive equations for multiphase porous medium systems. These approaches are based on rigorous physics and bridge the macroscopic and microscopic scales. In this study, we develop a method to simulate and study the dissolution of non-aqueous phase liquid (NAPL) blobs. Accurately quantifying NAPL mass transfer is crucial for modeling decontamination studies faithfully. Nevertheless, the empirical correlations proposed to date do not transfer from the experimental porous medium for which they were derived to other media. We developed a method, in which we simulate a random packing of spheres and a residual NAPL distribution by matching macroscopic morphological descriptors of an experimental NAPL distribution; then we simulate single-phase flow by using a lattice-Boltzmann approach. Finally we solve the advection-diffusion equation in the pore space by using a high-resolution numerical scheme to simulate mass transfer and transport of the dissolved components. Based upon different simulation results, we evaluate the sensitivity of the mass transfer coefficient with respect to two non-dimensional parameters and compare the simulation results to existing empirical relationships.

Original languageEnglish (US)
Pages (from-to)431-441
Number of pages11
JournalAdvances in Ecological Sciences
Volume18
StatePublished - 2003
Externally publishedYes

Fingerprint

Multiphase flow
nonaqueous phase liquid
multiphase flow
Porous materials
porous medium
Mass transfer
mass transfer
Decontamination
Water
Physics
Liquids
modeling
advection-diffusion equation
single-phase flow
water
constitutive equation
Advection
mass transport
pore space
Constitutive equations

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Dalla, E., Hilpert, M., Miller, C., & Pitea, D. (2003). Pore-scale modeling of multiphase flow and transport in water-wet porous media. Advances in Ecological Sciences, 18, 431-441.

Pore-scale modeling of multiphase flow and transport in water-wet porous media. / Dalla, E.; Hilpert, M.; Miller, C.; Pitea, D.

In: Advances in Ecological Sciences, Vol. 18, 2003, p. 431-441.

Research output: Contribution to journalArticle

Dalla, E, Hilpert, M, Miller, C & Pitea, D 2003, 'Pore-scale modeling of multiphase flow and transport in water-wet porous media', Advances in Ecological Sciences, vol. 18, pp. 431-441.
Dalla, E. ; Hilpert, M. ; Miller, C. ; Pitea, D. / Pore-scale modeling of multiphase flow and transport in water-wet porous media. In: Advances in Ecological Sciences. 2003 ; Vol. 18. pp. 431-441.
@article{25d4581c420741329472849a62dd205f,
title = "Pore-scale modeling of multiphase flow and transport in water-wet porous media",
abstract = "Pore-scale modeling is appealing for investigating and obtaining macro-scale constitutive equations for multiphase porous medium systems. These approaches are based on rigorous physics and bridge the macroscopic and microscopic scales. In this study, we develop a method to simulate and study the dissolution of non-aqueous phase liquid (NAPL) blobs. Accurately quantifying NAPL mass transfer is crucial for modeling decontamination studies faithfully. Nevertheless, the empirical correlations proposed to date do not transfer from the experimental porous medium for which they were derived to other media. We developed a method, in which we simulate a random packing of spheres and a residual NAPL distribution by matching macroscopic morphological descriptors of an experimental NAPL distribution; then we simulate single-phase flow by using a lattice-Boltzmann approach. Finally we solve the advection-diffusion equation in the pore space by using a high-resolution numerical scheme to simulate mass transfer and transport of the dissolved components. Based upon different simulation results, we evaluate the sensitivity of the mass transfer coefficient with respect to two non-dimensional parameters and compare the simulation results to existing empirical relationships.",
author = "E. Dalla and M. Hilpert and C. Miller and D. Pitea",
year = "2003",
language = "English (US)",
volume = "18",
pages = "431--441",
journal = "Advances in Ecological Sciences",
issn = "1369-8273",
publisher = "WIT Press",

}

TY - JOUR

T1 - Pore-scale modeling of multiphase flow and transport in water-wet porous media

AU - Dalla, E.

AU - Hilpert, M.

AU - Miller, C.

AU - Pitea, D.

PY - 2003

Y1 - 2003

N2 - Pore-scale modeling is appealing for investigating and obtaining macro-scale constitutive equations for multiphase porous medium systems. These approaches are based on rigorous physics and bridge the macroscopic and microscopic scales. In this study, we develop a method to simulate and study the dissolution of non-aqueous phase liquid (NAPL) blobs. Accurately quantifying NAPL mass transfer is crucial for modeling decontamination studies faithfully. Nevertheless, the empirical correlations proposed to date do not transfer from the experimental porous medium for which they were derived to other media. We developed a method, in which we simulate a random packing of spheres and a residual NAPL distribution by matching macroscopic morphological descriptors of an experimental NAPL distribution; then we simulate single-phase flow by using a lattice-Boltzmann approach. Finally we solve the advection-diffusion equation in the pore space by using a high-resolution numerical scheme to simulate mass transfer and transport of the dissolved components. Based upon different simulation results, we evaluate the sensitivity of the mass transfer coefficient with respect to two non-dimensional parameters and compare the simulation results to existing empirical relationships.

AB - Pore-scale modeling is appealing for investigating and obtaining macro-scale constitutive equations for multiphase porous medium systems. These approaches are based on rigorous physics and bridge the macroscopic and microscopic scales. In this study, we develop a method to simulate and study the dissolution of non-aqueous phase liquid (NAPL) blobs. Accurately quantifying NAPL mass transfer is crucial for modeling decontamination studies faithfully. Nevertheless, the empirical correlations proposed to date do not transfer from the experimental porous medium for which they were derived to other media. We developed a method, in which we simulate a random packing of spheres and a residual NAPL distribution by matching macroscopic morphological descriptors of an experimental NAPL distribution; then we simulate single-phase flow by using a lattice-Boltzmann approach. Finally we solve the advection-diffusion equation in the pore space by using a high-resolution numerical scheme to simulate mass transfer and transport of the dissolved components. Based upon different simulation results, we evaluate the sensitivity of the mass transfer coefficient with respect to two non-dimensional parameters and compare the simulation results to existing empirical relationships.

UR - http://www.scopus.com/inward/record.url?scp=2942648543&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=2942648543&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:2942648543

VL - 18

SP - 431

EP - 441

JO - Advances in Ecological Sciences

JF - Advances in Ecological Sciences

SN - 1369-8273

ER -