GMS:DE4 Package
From XMS Wiki
| MODFLOW | |
|---|---|
| Pre-processing | |
| MODFLOW Commands | |
| Building a MODFLOW Model | |
| Map to MODFLOW | |
| Calibration | |
| Packages Supported in GMS | |
| Saving a MODFLOW Simulation | |
| Importing MODFLOW Files | |
| Unsupported MODFLOW Features | |
| Run MODFLOW | |
| Post-processing | |
| MODFLOW Display Options | |
| MODFLOW Post-Processing Viewing Options | |
| Reading a MODFLOW Simulation | |
| Tutorials | |
| Packages | |
| Flow: | BCF6, HUF, LPF, UPW |
| Solvers: | SMS |
| Other: | UZF1 |
The DE4 package or Direct Solver is one of the solvers available for MODFLOW. It requires reading in a DE4 file. The MODFLOW DE4 Solver package dialog will show the variables in the DE4 file. Variables include:
- Comments
- Maximum number of iterations
- Maximum number of upper equations
- Maximum number of lower equations
- Maximum bandwidth
- Frequency of change of coefficients in A
- Print flag for convergence information per time step
- Head change multiplier
- Head change closure criterion
- Interval for time step printing
For more information on this solver see page 84 of the USGS documentation at http://pubs.er.usgs.gov/usgspubs/ofr/.
DE4 File Format
FOR EACH SIMULATION 0. [#Text] 1. ITMX MXUP MXLOW MXBW 2. IFREQ MUTD4 ACCL HCLOSE IPRD4
Item 0 is optional—“#” must be in column 1. Item 0 can be repeated multiple times.
| GMS – Groundwater Modeling System | ||
|---|---|---|
| Modules: | 2D Grid • 2D Mesh • 2D Scatter Point • 3D Grid • 3D Mesh • 3D Scatter Point • Boreholes • GIS • Map • Solid • TINs • UGrids |  |
| Models: | FEFLOW • FEMWATER • HydroGeoSphere • MODAEM • MODFLOW • MODPATH • mod-PATH3DU • MT3DMS • MT3D-USGS • PEST • PHT3D • RT3D • SEAM3D • SEAWAT • SEEP2D • T-PROGS • ZONEBUDGET | |
| Aquaveo | ||
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