From XMS Wiki - http://wikis.aquaveo.com/xms/
|Model type||3D mesh, finite-element, Steady state and transient|
GMS includes a graphical interface to the groundwater model FEMWATER. FEMWATER is a 3D finite element, saturated/unsaturated, density driven, flow and transport model. FEMWATER was originally written by G.T. (George) Yeh at Penn State University (Yeh, et. al., 1992). The version of FEMWATER that is supported by GMS is a special version that has been modified by G.T. Yeh and the U.S. Army Engineer Waterways Experiment Station. This version is a coupled version of the original FEMWATER model (which solved for flow only) with the transport model LEWASTE (also developed by George Yeh).
A separate reference manual is available which describes the new version of FEMWATER in detail (Lin, et. al., 1997). This manual contains a description of the input requirements and should be read completely before using GMS to set up a problem.
- Mar 2004 ERDC/CHL CHETN-XI-1 DDJC-Sharpe Defense Distribution Depot: FEMWATER 3D Transport Model of TCE Plume Migration with Natural Attenuation 
GMS – Groundwater Modeling System
|Modules:||2D Grid · 2D Mesh · 2D Scatter Point · 3D Grid · 3D Mesh · 3D Scatter Point · Boreholes · GIS · Map · Solid · TINs|
|Models:||ADH · ART3D · FEMWATER · MODAEM · MODFLOW · MODPATH · MT3DMS · PEST · RT3D · SEAM3D · PHT3D · SEAWAT · SEEP2D · T-PROGS · UTCHEM · UTEXAS · ZONEBUDGET|