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Contaminant transport

 

PROBLEM

When contaminants are stored in an earthen structure there is the potential that the contaminants may move into the local groundwater supply. It is becoming of increased concern around the world to determine the total environmental impact of many buried structures and surface storage facilities.

SOLUTION

The ChemFlux software is designed to help determine \"what if\" scenarios. It is inherently a predictive model. The software can be used to determine where contaminants will potentially end up in 10, 20, 30, 50 or 100 years. The software allows for modeling a single contaminant and can model the processes of advection, adsorption, diffusion, and decay.


ElderModel_10y

This model demonstrates the Coupling of SVFlux and ChemFlux as well as Density-Dependant Flow with the Elder problem.

Model filename: SoluteTransport > ElderModel_10y.svm

Tags: SoluteTransport,CHEMFLUX,SVFLUX,2D,Transient,Salt water intrusion,Water resources management,Density Dependent Flow,Geoenvironmental,Contaminant transport,Benchmarking

Attachments:

FDDiffAdv

This model verifies the 1D ChemFlux implimentation against the solution in the SoilVision free spreadsheet, FDadvdis.xls. Diffusion, and Advection. Comparative to Closed Form Solution

Model filename: Columns > FDDiffAdv.svm

Tags: Columns,CHEMFLUX,1D Vertical,Transient,Columns,1D,Geoenvironmental,Contaminant transport,Benchmarking

Attachments:

FDDiffAdvDis

This model verifies the 1D ChemFlux implimentation against the solution in the SoilVision free spreadsheet, FDadvdis.xls. Diffusion, Advection, and Dispersion. Comparative to Closed Form Solution.

Model filename: Columns > FDDiffAdvDis.svm

Tags: Columns,CHEMFLUX,1D Vertical,Transient,Columns,1D,Geoenvironmental,Contaminant transport,Benchmarking

Attachments:

FDDiffAdvDisDstar1E11

This model verifies the 1D ChemFlux implimentation against the solution in the SoilVision free spreadsheet, FDadvdis.xls. Diffusion, Advection, and Dispersion. Comparative to Closed Form Solution

Model filename: Columns > FDDiffAdvDisDstar1E11.svm

Tags: Columns,CHEMFLUX,1D Vertical,Transient,Columns,1D,Geoenvironmental,Contaminant transport

Attachments:

FDDiffDis

This model verifies the 1D ChemFlux implimentation against the solution in the SoilVision free spreadsheet, FDadvdis.xls. Diffusion, and Dispersion. Comparative to Closed Form Solution

Model filename: Columns > FDDiffDis.svm

Tags: Columns,CHEMFLUX,1D Vertical,Transient,1D,Geoenvironmental,Contaminant transport,Columns

Attachments:

FDDiffOnly

This model verifies the 1D ChemFlux implimentation against the solution in the SoilVision free spreadsheet, FDadvdis.xls. Diffusion Only. Comparative to Closed Form Solution

Model filename: Columns > FDDiffOnly.svm

Tags: Columns,CHEMFLUX,1D Vertical,Transient,1D,Geoenvironmental,Contaminant transport,Benchmarking,Columns

Attachments:

HenryModel

This benchmark illustrates the result simulated using ChemFlux coupled with SVFlux for the Henry?s problem, which has been widely used for the benchmark of density-dependent solute transport (SaltFlow 2002, Simpson et al 2003, 2004, and Langevin and Guo 2002, 2006)

Model filename: SoluteTransport > HenryModel.svm

Tags: SoluteTransport,CHEMFLUX,SVFLUX,2D,Transient,Water Table,Geoenvironmental,Contaminant transport,Benchmarking

Attachments:

HenryModel_SimpsonModified

This model demonstrates the Coupling of SVFlux and ChemFlux as well as Density-Dependant Flow. The left side boundary condition is modified to the half water flux as Henry original problem.

Model filename: SoluteTransport > HenryModel_SimpsonModified.svm

Tags: SoluteTransport,CHEMFLUX,SVFLUX,2D,Transient,Water Table,Geoenvironmental,Contaminant transport,Benchmarking

Attachments:

HenryModel_uncoupled

This model demonstrates the Coupling of SVFlux and ChemFlux as well as Density-Dependant Flow with buoy = 0

Model filename: SoluteTransport > HenryModel_uncoupled.svm

Tags: SoluteTransport,CHEMFLUX,SVFLUX,2D,Transient,Water Table,Geoenvironmental,Contaminant transport,Benchmarking

Attachments:

PlanViewSource

This example model simulates the leak of some contaminant from a fictitious storage tank into the surrounding soil. The leak occurs on one side of the tank and the rate of release is varied. The advection and material properties are such that a contaminant plume develops to the right of the tank base.

Model filename: ContaminantPlumes > PlanViewSource.svm

Tags: ContaminantPlumes,CHEMFLUX,Plan,Transient,Geoenvironmental,Contaminant transport

Attachments:

PlanViewSource_Coupled

This example model simulates the leak of some contaminant from a fictitious storage tank into the surrounding soil. The leak occurs on one side of the tank and the rate of release is varied. The advection gradients from coupling with SVFlux cause a contaminant plume develops to the right of the tank base.

Model filename: ContaminantPlumes > PlanViewSource_Coupled.svm

Tags: ContaminantPlumes,CHEMFLUX,SVFLUX,Plan,Transient,Geoenvironmental,Contaminant transport

Attachments:

PlanViewSource_Front

This example model simulates the leak of some contaminant from a fictitious storage tank into the surrounding soil. The leak occurs on one side of the tank and the rate of release is varied. The advection and material properties are such that a contaminant plume develops to the right of the tank base. In addition the Front statement has been applied to this model to increase the mesh resolution as the contaminant front moves. (compare to PlanViewSource)

Model filename: ContaminantPlumes > PlanViewSource_Front.svm

Tags: ContaminantPlumes,CHEMFLUX,Plan,Transient,Geoenvironmental,Contaminant transport

Attachments:

PlanViewSource_Front_Coupled

This example model simulates the leak of some contaminant from a fictitious storage tank into the surrounding soil. The leak occurs on one side of the tank and the rate of release is varied. The advection gradients from coupling with SVFlux cause a contaminant plume develops to the right of the tank base. In addition the Front statement has been applied to this model to increase the mesh resolution as the contaminant front moves. (compare to PlanViewSource_Coupled)

Model filename: ContaminantPlumes > PlanViewSource_Front_Coupled.svm

Tags: ContaminantPlumes,CHEMFLUX,SVFLUX,Plan,Transient,Geoenvironmental,Contaminant transport

Attachments:

VanderHeijde

This example shows the flow of a plug of contamination released at ground surface for a time duration. (Tutorial Manual 2D Example Problem). Sudicky (1989) developed the following example. The model considers flow and solute transport in a heterogeneous cross section with a highly irregular flow field, dispersion parameters that are small compared with the spatial discretization, and a large contrast between longitudinal and transverse dispersivities (Zheng and Wang, 1999).

Model filename: ContaminantPlumes > VanderHeijde.svm

Tags: ContaminantPlumes,CHEMFLUX,2D,Transient,ContaminantPlumes,Waste Containment,Waste management,Geoenvironmental,Contaminant transport,Benchmarking

Attachments:

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