Abstract
This paper presents an experimental and computational 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 tests were conducted on composite specimens of kaolinite slurry consisting of an upper uncontaminated layer and a lower layer contaminated with potassium bromide. An 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 several different transport and loading conditions. Both diffusion and consolidation-induced advection made important contributions to solute transport and mass outflow. This study suggests that neglecting to consider transient consolidation effects may lead to significant errors in transport analyses involving soft contaminated clays undergoing large volume change.
| Original language | English (US) |
|---|---|
| Title of host publication | 12th International Conference on Computer Methods and Advances in Geomechanics 2008 |
| Pages | 1162-1169 |
| Number of pages | 8 |
| Volume | 2 |
| State | Published - 2008 |
| Event | 12th International Conference on Computer Methods and Advances in Geomechanics 2008 - Goa, India Duration: Oct 1 2008 → Oct 6 2008 |
Other
| Other | 12th International Conference on Computer Methods and Advances in Geomechanics 2008 |
|---|---|
| Country | India |
| City | Goa |
| Period | 10/1/08 → 10/6/08 |
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All Science Journal Classification (ASJC) codes
- Geotechnical Engineering and Engineering Geology
- Applied Mathematics
Cite this
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Coupled consolidation and contaminant transport in compressible porous media. / Fox, Patrick Joseph; Lee, Jangguen; Lenhart, John J.
12th International Conference on Computer Methods and Advances in Geomechanics 2008. Vol. 2 2008. p. 1162-1169.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Coupled consolidation and contaminant transport in compressible porous media
AU - Fox, Patrick Joseph
AU - Lee, Jangguen
AU - Lenhart, John J.
PY - 2008
Y1 - 2008
N2 - This paper presents an experimental and computational 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 tests were conducted on composite specimens of kaolinite slurry consisting of an upper uncontaminated layer and a lower layer contaminated with potassium bromide. An 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 several different transport and loading conditions. Both diffusion and consolidation-induced advection made important contributions to solute transport and mass outflow. This study suggests that neglecting to consider transient consolidation effects may lead to significant errors in transport analyses involving soft contaminated clays undergoing large volume change.
AB - This paper presents an experimental and computational 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 tests were conducted on composite specimens of kaolinite slurry consisting of an upper uncontaminated layer and a lower layer contaminated with potassium bromide. An 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 several different transport and loading conditions. Both diffusion and consolidation-induced advection made important contributions to solute transport and mass outflow. This study suggests that neglecting to consider transient consolidation effects may lead to significant errors in transport analyses involving soft contaminated clays undergoing large volume change.
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M3 - Conference contribution
AN - SCOPUS:79954467084
SN - 9781622761760
VL - 2
SP - 1162
EP - 1169
BT - 12th International Conference on Computer Methods and Advances in Geomechanics 2008
ER -