Coupled large strain consolidation and solute transport.II: Model verification and simulation results

Patrick J. Fox

Research output: Contribution to journalArticlepeer-review

80 Scopus citations


The results of numerical simulations for coupled large strain consolidation and solute transport, obtained using the CST1 model, are presented. CST1 accounts for advection, longitudinal and transverse dispersion, first-order decay reactions, and linear equilibrium sorption. Verification checks of CST1 show excellent agreement with analytical solutions for one-dimensional (1D) transport in rigid porous media, including various Peclet numbers and concentration boundary conditions. Similarly excellent agreement is observed for two-dimensional advection-dispersion transport in rigid media and 1D advection-dispersion transport in compressible media undergoing large strain consolidation. CST1 is then used to investigate consolidation-induced solute transport for a single composite liner system and a confined disposal facility for dredged contaminated sediments. In both cases, solute transport was found to be strongly affected by consolidation-induced advection both during and after the consolidation period. Consolidation has a lasting effect on solute migration because transient advective flows change the distribution of solute mass, which then becomes the initial condition for subsequent transport processes.

Original languageEnglish (US)
Pages (from-to)16-29
Number of pages14
JournalJournal of Geotechnical and Geoenvironmental Engineering
Issue number1
StatePublished - Jan 1 2007

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology
  • General Environmental Science


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