Waterloo - Version Modflow-Surfact - Advanced Groundwater Flow and Transport Modeling Software
MODFLOW-SURFACT is one of the most comprehensive flow and transport models available. Built around the MODFLOW code, MODFLOW-SURFACT includes advanced computational modules that are based on robust, efficient, mass-conserving algorithms making it faster and more accurate than its transport modeling counterparts.
Overview
MODFLOW-SURFACT Flow and Transport groundwater simulation software features many robust methods and enhanced simulation capabilities for handling complex saturated/unsaturated subsurface flow and transport processes. Based on the USGS modular groundwater flow model, MODFLOW.
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Handles complete desaturation and resaturation of grid cells
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Accurate delineation and tracking of water table position, taking into account flow in the unsaturated zone, delayed yield, and vertical flow components
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Automatic and correct redistribution of the total flow rate of a well screened through multiple model layers when the upper cell(s) are pumped dry
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Accommodation of wellbore storage and overpumped wells
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Prevents water table buildup beyond a specified recharge-ponding elevation
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Handling of seepage face boundary conditions
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Adaptive time-stepping schemes automatically adjusts time-step size to the non-linearities of the system to optimize the solution stability
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Robust and efficient Pre-conditioned Conjugate Gradient matrix solver
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Capability of modeling unsaturated water or air movement
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Enhanced Newton-Raphson linearization option increases robustness for unconfined and/or unsaturated flow conditions
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The powerful PCG5 solver add-on is up to 20 times faster than the PCG4 solver thanks to its advanced computational techniques
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The Recharge Package (RSF4) has been modified to include zonal input of recharge with zonal recharge values provided via a separate recharge time-series (RTS) file that is independent of the stress-period setup for varying boundary conditions
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The Evapotranspiration (ET) packages EVT and ETS1 (referred to as ET2 in MODFLOW-SURFACT) have been modified to include zonal input of ETmax values provided via a separate ET time-series (ETS) file that is independent of the stress-period setup for varying boundary conditions
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Includes fracture well package (FWL5), new flow package (BCF4), recharge/seepage face package (RSF4)
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Includes new Adaptive Time Stepping and Output Control Package (ATO4)
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Includes new Preconditioned Conjugate Gradient Package containing a new PCG matrix solver (PCG4)
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Includes new Newton Raphson linearization package with backtracking (NRB1)
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Simulate complete desaturation and saturation of grid blocks
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Simulate unsaturated flow includes fractured flow and dual porosity
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Includes solute transport, multiphase transport, NAPL dissolution and volatilization
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Includes vapor flow
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Accurate delineation and tracking of water table position, taking into account flow in the unsaturated zone, delayed yield, and vertical flow components
-
Automatic and correct redistribution of the total flow rate of a well screened through multiple model layers when the upper cell(s) are pumped dry
-
Accommodation of wellbore storage and overpumped wells
-
Prevents water table buildup beyond a specified recharge-ponding elevation
-
Handling of seepage face boundary conditions
-
Adaptive time-stepping schemes automatically adjusts time-step size to the non-linearities of the system to optimize the solution stability
-
Robust and efficient Pre-conditioned Conjugate Gradient matrix solver
MODFLOW-SURFACT Flow and Transport Pricing*
- Flow $2200.00 USD
- Flow and Transport $4400.00 USD
- Density-Dependent Module** $1500.00 USD
- PCG5 Module** $450.00 USD
- Time-varying Material Property (TMP) Module** $900.00 USD
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