Example 1: Modeling a RCRA Subtitle D Landfill with a Composite Liner
Models a composite geomembrane and clay liner, primary leachate collection and aquifer impact.
Open documented example
13 Documented 2D Models
Learn MIGRATEv10 through Progressive, Spatial Examples
Move from two-dimensional diffusion and aquifer mixing to multiple sources, interacting landfill plumes and fractured media.
Each example explains the conceptual model, assumptions, numerical controls and result interpretation. Filter the library by modeling purpose or search for a transport process.
13 ExamplesFoundation through complex cases
2D Spatial ModelingVertical and lateral migration
Multiple SourcesInteracting landfill plumes
Numerical VerificationIntegration and benchmarks
Example Library
Find a 2D Model by Purpose or Process
Start with the simplest example that contains the required source, boundary and spatial behavior, then progress to more complex configurations.
Showing 13 examples
Example 2: Composite Liner System with Primary & Secondary Leachate Collection
Evaluates a multi-barrier landfill with primary and secondary collection systems above an aquitard and aquifer.
Open documented example
Example 3: Pure Diffusion of a Conservative Contaminant
Isolates two-dimensional diffusion without advection or sorption using a zero-concentration lower boundary.
Open documented example
Example 4: Finite Mass Source and Aquifer Mixing with Base Outflow
Combines a depleting source with aquifer mixing and contaminant outflow at the base of the model.
Open documented example
Example 5: Understanding Integration, Accuracy, and the Role of Engineering Judgment
Explains integration accuracy, dimensional assumptions and the interpretation of preliminary modeling results.
Open documented example
Example 6: Eliminating Negative Concentrations Through Improved Integration
Demonstrates how refined Talbot integration parameters remove numerical artifacts and improve stability.
Open documented example
Example 7: Improving Accuracy with User-Selected Fourier Integration
Uses user-selected Fourier and Gauss integration controls to reduce oscillation and negative results.
Open documented example
Example 8: Evaluating Contaminant Migration at Multiple Lateral Positions
Compares concentrations at several lateral positions to reveal two-dimensional plume development.
Open documented example
Example 9: Comparison with the TDAST Analytical Solution
Benchmarks MIGRATEv10 against the TDAST analytical solution for two-dimensional plane dispersion.
Open documented example
Example 10: Contaminant Transport in Fractured Media with Sorption
Models two-dimensional transport through fractured till beneath a clay liner with reactive sorption.
Open documented example
Example 11: Contaminant Migration from Two Adjacent Landfill Cells
Examines interacting plumes from adjacent cells and predicted concentrations at a downgradient receptor.
Open documented example
Example 12: Modeling Time-Dependent Source Histories for Multiple Landfill Cells
Combines multiple landfill cells with distinct time-dependent source histories in one spatial model.
Open documented example
Example 13: Termination of Primary Leachate Collection System
Models post-closure collection-system termination using time-dependent leachate head and Darcy velocity.
Open documented exampleInstructional examples are not design standards. Adapt the conceptual model and parameters to site-specific conditions and have the resulting engineering interpretation reviewed by a qualified professional.
Suggested Learning Path
Build 2D Modeling Confidence in Four Stages
1
Transport Foundations
Begin with Examples 3 and 4 to understand pure diffusion, finite source mass, aquifer mixing and base outflow.
2
Engineered Landfills
Use Examples 1, 2 and 13 for composite liners, dual collection systems and post-closure termination.
3
Numerical Confidence
Review Examples 5, 6, 7 and 9 for integration controls, artifacts and analytical comparison.
4
Spatial Complexity
Progress through Examples 8, 10, 11 and 12 for lateral, fractured and multi-source transport.
Selecting a Starting Point
Match the Example to the Spatial Question
- Identify the source geometry, lateral extent and number of sources
- Determine whether both vertical and lateral concentration gradients matter
- Choose the required liner, collection, aquitard and aquifer boundaries
- Identify finite mass, time histories, sorption or fractured-media processes
- Review integration settings if concentrations oscillate or become negative
- Use POLLUTEv10 when a simpler layered 1D/1.5D formulation is adequate
Recommended Use of an Example
- Reproduce the documented case.
- Check its spatial trends and mass behavior.
- Save an unchanged reference copy.
- Replace inputs with project-supported values.
- Test one geometry or parameter change at a time.
- Document assumptions, controls and limitations.
Continue Learning
Connect Examples to Product Guidance
MIGRATEv10 Core Features
Review 2D model geometry, lateral positions, multiple sources and output capabilities.
Explore Core FeaturesPOLLUTEv10 Examples
Explore progressive 1D/1.5D cases when full two-dimensional geometry is not required.
Browse POLLUTE ExamplesComplete Knowledge Center Archive
Browse the original MIGRATE articles and related contaminant-modeling guidance.
Open the archivePOLLUTE and MIGRATE
Compare the 1D/1.5D and 2D approaches for the project question.
Compare the productsTechnical Support
Ask about model configuration, installation or product evaluation.
Contact Technical SupportReady to Reproduce an Example in MIGRATEv10?
Start with the closest documented spatial case, verify its behavior and then introduce project-specific assumptions.
