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Published online 27 May 2008
Published in Vadose Zone J 7:632-639 (2008)
DOI: 10.2136/vzj2007.0075
© 2008 Soil Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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SPECIAL SECTION: VADOSE ZONE MODELING

Simulating Water, Solute, and Heat Transport in the Subsurface with the VS2DI Software Package

Richard W. Healy*

U.S. Geological Survey, Mail Stop 413, Box 25046, Denver Federal Center, Lakewood, CO 80225
* Corresponding author (rwhealy{at}usgs.gov).

Received 17 April 2007.

The software package VS2DI was developed by the U.S. Geological Survey for simulating water, solute, and heat transport in variably saturated porous media. The package consists of a graphical preprocessor to facilitate construction of a simulation, a postprocessor for visualizing simulation results, and two numerical models that solve for flow and solute transport (VS2DT) and flow and heat transport (VS2DH). The finite-difference method is used to solve the Richards equation for flow and the advection–dispersion equation for solute or heat transport. This study presents a brief description of the VS2DI package, an overview of the various types of problems that have been addressed with the package, and an analysis of the advantages and limitations of the package. A review of other models and modeling approaches for studying water, solute, and heat transport also is provided.




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Vadose Zone J., May 27, 2008; 7(2): 581 - 586.
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