Coupled consolidation and contaminant transport in compressible porous media

Patrick Joseph Fox, Jangguen Lee, John J. Lenhart

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

This paper presents an experimental and numerical investigation of coupled consolidation and contaminant transport in compressible porous media. Numerical simulations were performed using the CST2 computational model, in which a dual-Lagrangian framework is used to separately follow the motions of fluid and solid phases during consolidation. Diffusion and large strain consolidation-induced transport tests were conducted on composite specimens of kaolinite slurry consisting of an upper uncontaminated layer and a lower layer contaminated with potassium bromide. Assessment of the importance of the consolidation process on solute transport is based on measured and simulated solute breakthrough curves and final contaminant concentration profiles. CST2 simulations closely match the experimental data for three different loading conditions. Diffusion and consolidation-induced advection made important contributions to solute transport and mass outflow in this study. Additional simulations indicate that consolidation-induced contaminant transport may also be affected by specimen boundary drainage and initial concentration conditions.

Original languageEnglish (US)
Pages (from-to)113-123
Number of pages11
JournalInternational Journal of Geomechanics
Volume11
Issue number2
DOIs
StatePublished - Apr 8 2011

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soil transport processes
porous media
pollutant transport
porous medium
consolidation
potassium bromide
kaolinite
solutes
drainage
solute transport
simulation
testing
breakthrough curve
bromide
slurry
solute
advection
outflow
potassium
fluid

All Science Journal Classification (ASJC) codes

  • Soil Science

Cite this

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Coupled consolidation and contaminant transport in compressible porous media. / Fox, Patrick Joseph; Lee, Jangguen; Lenhart, John J.

In: International Journal of Geomechanics, Vol. 11, No. 2, 08.04.2011, p. 113-123.

Research output: Contribution to journalArticle

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