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Related Experiment Video

Updated: May 19, 2026

Visualizing Hyporheic Flow Through Bedforms Using Dye Experiments and Simulation

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Published on: November 18, 2015

Simulating MODFLOW-based reactive transport under radially symmetric flow conditions.

Ilka Wallis¹, Henning Prommer, Vincent Post

¹School of the Environment, Flinders University, Adelaide, GPO Box 2100, SA 5001, Australia. ilka.wallis@flinders.edu.au

|August 21, 2012

Summary

This study shows that radial transport models, using MODFLOW, MT3DMS, and PHT3D, can efficiently and accurately simulate groundwater solute transport near point sources/sinks. These models significantly reduce computational load compared to 3D simulations.

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Area of Science:

Groundwater hydraulics
Hydrogeology
Environmental engineering

Background:

Radially symmetric flow and solute transport near point sources/sinks are crucial in groundwater hydraulics.
Advanced solute transport and biogeochemical processes often require computationally intensive numerical solutions.
Axis-symmetric models offer a potential reduction in computational cost for such problems.

Purpose of the Study:

To explore techniques for simulating conservative and reactive transport in radial flow fields using MODFLOW.
To evaluate the computational efficiency and accuracy of radial transport models compared to full 3D simulations.
To assess the capability of radial models for complex transport phenomena.

Main Methods:

Utilized MODFLOW for simulating radial flow fields.
Employed MT3DMS and PHT3D for simulating conservative and reactive solute transport.
Compared radial model simulations against full 2D/3D models, analytical solutions, and benchmark problems.

Main Results:

Radial transport models accurately reproduced various conservative and reactive transport problems.
Significant reductions in computational load were achieved compared to full 3D simulations.
Model accuracy was dependent on appropriate spatial discretization and advection scheme selection.

Conclusions:

Radial transport models provide an efficient and accurate approach for simulating solute transport in groundwater near point sources/sinks.
These models offer substantial computational benefits, especially for complex reaction networks.
Proper model setup, including discretization and advection schemes, is key to achieving reliable results.