Visual MODFLOW® Flex is the industry standard software for 3D groundwater flow, heat and contaminant transport modeling.
Integrated Conceptual and Numerical Groundwater Modeling
Powerful 2D and 3D Visualization Capabilities
Intuitive and Easy-to-Use
New Release: Visual MODFLOW Flex 2014.1 delivers improved accuracy and reduced runtimes with support for MODFLOW-USG unstructured grids. Learn more »
A Complete Groundwater Modeling System
With Visual MODFLOW Flex you have a complete set of tools necessary for addressing water quality, groundwater supply, and source water protection initiatives, including:
MODFLOW-2000, 2005, NWT - The world standard for groundwater flow modeling
MODFLOW-USG - A finite volume version of MODFLOW that uses unstructured grids. Learn more
MODFLOW-LGR - Shared-node local grid refinement (LGR) for regional-local scale simulations
SEAWAT v.4 - 3D variable density groundwater flow coupled with multi-species solute and heat transport
MT3DMS - The standard package for multi-species contaminant transport simulations
MODPATH - The standard package for forward and reverse particle tracking
Zone Budget - A package for sub-regional water budget calculations
PHT3D - A multi-component transport model for three-dimensional reactive transport in saturated porous media. It couples the two existing and widely used computer programs, the solute transport model MT3DMS and the USGS geochemical code PHREEQC-2.
PEST v.12.3 - Automated calibration and sensitivity analysis with support for pilot points.
View all supported flow engines, transport engines and MODFLOW packages.
Efficiently Manage Multiple Models
Most modeling projects involve several scenarios/versions, e.g., steady-state vs transient, different properties, inputs, grid types, etc. Visual MODFLOW Flex allows you to assess uncertainty and improve model credibility through comparisons and analysis of multiple modeling scenarios - all within a single project.
Manage multiple model scenarios in a single project
Easily generate multiple models in parallel for evaluating alternative hydrogeologic interpretations and hypotheses
Make direct visual and numerical comparisons between different modeling scenarios
Calculate head differences between multiple model runs, with the same or different grid size
Compare and analyze multiple modeling scenarios for selecting the best, most realistic model
Powerful Data Visualization
Built and designed on the latest in 3D visualization technology, Visual MODFLOW Flex allows you to effectively present and communicate your data to colleagues and stakeholders with impressive visual renderings of your hydrogeologic model.
Visualize all data, including conceptual objects, numerical grids, input data (property zones, boundary condition cells, etc) and output data (calculated heads, pathlines) in state-of-the-art 2D, 3D and multi-view (FlexViewer) displays
Create cut-away and cross-sectional views that allow you to see inside your model
Generate 3D animations and movies for reports or the web
Add isolines, contours, pathlines and color shading to viewers
Drape raster images (site maps, satellite imagery) over 3D surfaces to show relief
Optimized OpenGL graphics for enhanced hardware rendering
Full GIS Integration
Easily construct your grid-independent hydrogeologic conceptual model in minutes using your existing GIS data sets.
Quick and easy data importing of all common file types and formats
Automatic coordinate system and units conversion on import
Automatic data validation and intelligent error checking on import
Define model boundaries, property zones, boundary conditions and attributes from imported GIS data
Supported Data Types
Point, polygon and polyline data (.SHP, .XLS,.DXF, .TXT)
3D Surfaces (.DEM, .ASC, .GRD)
Site maps, aerial and satellite imagery (.JPG, . BMP, .TIF, .GIF)
Borehole data, time schedules and cross-sections from Hydro GeoAnalyst
MODFLOW files from Groundwater Vistas, GMS, ModelMuse and PMWIN.
Native MODFLOW files
Existing Visual MODFLOW Projects (.VMF)
3D Gridded Data
Flexible Grid Options
Visual MODFLOW Flex provides various grid types from which you can generate your numerical model. Easily experiment with different grid types and choose the one that gives you the best, most stable model.
Choose from various finite difference grid/mesh types to accommodate a wide range of applications and geologic conditions (e.g., pinch outs, discontinuities)
Easily generate multiple grids within the same project and compare side-by-side in 2D or 3D
Perform grid refinement around areas of interest
Create faster more stable models with nested child grids that contain local horizontal and vertical refinement (MODFLOW-LGR)
Supported Grid Types
Finite Element Mesh
Localized Child Grids (MODFLOW-LGR)
VMOD Flex Grid Types A Review of Finite Difference Grid Types Download »
Unparalleled Power and Performance
Take full advantage of 64-bit architecture and multiple core processors, and build bigger models and run simulations significantly faster
Available in 64-bit with support for 64-bit engines
Multi-core parallel processing for flow engines
Flexible Modeling Approaches
Visual MODFLOW Flex allows you to choose which modeling approach to use for building your groundwater models. Choose the flexible and efficient conceptual modeling approach or the classical modeling approach.
Conceptual Modeling Approach
Build your 3D conceptual model using existing GIS data and wells/boreholes. The grid-independent conceptual model gives you the flexibility to experiment with different grid types and simulators. Cell locations and parameters are automatically calculated for you, reducing the need to define these manually on a cell-based level. From one conceptual model you can easily generate multiple numerical models of different grid types and modeling scenarios, and easily update or modify the model as needed. Learn more »
Classical Numerical Modeling Approach
Ideal for models with simple geology, basic properties and boundary conditions, the classical approach allows you to start by defining the numerical grid. The grid can then be manually populated with properties and boundary conditions using traditional techniques.
Integrated 3D Conceptual and Numerical Groundwater Modeling
Visual MODFLOW Flex provides a seamless transition from raw data through conceptualization to the numerical model all within a single intuitive modeling environment.
Define complex geology and model layers using borehole log data and cross-sections
Interpret GIS data to define hydrogeologic properties and boundaries independent of the grid
Run, analyze, and validate model results with raw data in 2D, 3D, and cross-section views
Easily create multiple conceptualizations; generate numerous grids and model scenarios in parallel all in a single project
Assess uncertainty though comparing heads from multiple model runs in 2D, 3D or chart views
A Unified Modeler’s Workbench Workflow-Driven Conceptual and Numerical Modeling Download »
Compare field data with model inputs/results in 3D for better understanding and presentation of the groundwater model
Generate grids or meshes from your geological model
Easily define complex geology from borehole logs and GIS data
Local grid refinement with MODFOW-LGR
Choose from various grid types to accomodate a wide range of geologic conditions
See inside your model with cutaway views and cross sections
Simulate saltwater intrusion using SEAWAT for coastal aquifers
Determine contaminant fate and exposure pathways for risk assessment
Natural attenuation of contaminant plumes
Evalutation of funnel & gate remediation
Three-dimensional visualization fo drawdown cones
Visualize specific levels of contaminiation and drape over a 3D surface