Visual MODFLOW Flex: Comprehensive Feature Guide

Comprehensive Groundwater Modeling

With Visual MODFLOW Flex you have a comprehensive 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
MODFLOW-SURFACT Enhanced simulations of complex saturated/unsaturated subsurface flow and transport processes
MT3DMS The standard package for multi-species contaminant transport simulations
SEAWAT The model for variable-density groundwater flow coupled with multi-species solute and heat transport
RT3D Advanced and specialized multi-species reactive contaminant transport simulations
MODPATH The standard package for forward and reverse particle tracking
MOD-PATH3DU An advanced package for forward and reverse particle tracking supporting unstructured grids
Zone Budget A package for sub-regional water budget calculations
PEST v.12.3 Automated calibration and sensitivity analysis with support for pilot points

View all supported flow engines, transport engines and MODFLOW packages.

Visual MODFLOW Flex supported file types:

  • Point, polygon and polyline data (.SHP, .XLS,.DXF, .TXT, .CSV, .MDB)
  • 3D Surfaces (.DEM, .ASC, .GRD, .TXT)
  • 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 (.HDS and .DAT)

Visual MODFLOW Flex supported Grid types:

  • Uniform Grid
  • Non-Uniform Grid
  • Finite Element Mesh
  • Localized Child Grids (MODFLOW-LGR)
  • Unstructured Grids (MODFLOW-USG)

Flexible Modeling Approaches

Classical 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.

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.