GGSD Program Details for SWANFLOW

SWANFLOW

Category	Contaminant transport (3D)
Publisher	GeoTrans, Inc.
Platform	DOS
Status	Public domain
Description	SWANFLOW is a 3D finite-difference code for simulating the flow of water and an immiscible nonaqueous phase under saturated and unsaturated near-surface conditions. The code may be used in many situations requiring the analysis of immiscible flow, such as simulating the migration of organic chemicals; analysing the effects of remedial technologies at hazardous waste sites where immiscible fluids are encountered; and evaluating the migration and clean up of fuel spills and leaks. There are three primary limitations to the code: the air phase is considered to be at constant atmospheric pressure, thus flow of air is not modelled; mass transfer between phases is not considered, ie NAPL cannot dissolve in water or evaporate; and practical application of the code to field problems can be complicated by lack of site-specific capillary pressure and relative permeability data.
Cost	US Dollars 120
Data formats supported	None stated
Supplier in United States of America	GeoTrans, Inc.
Supplier in United States of America	International Ground Water Modeling Center