CESDb > Water Resources > MODFLOW-USG
MODFLOW-USG screenshot
SOFTWARE :MODFLOW-USG
DEVELOPER :USGS
VERSION :1.5
PLATFORM :DOS
FILE SIZE :12.31 MB
LICENSE :Freeware
DOWNLOADS :UserDownloads:420
Program Description

A new version of MODFLOW, called MODFLOW-USG (for UnStructured Grid), was developed to support a wide variety of structured and unstructured grid types, including nested grids and grids based on prismatic triangles, rectangles, hexagons, and other cell shapes. Flexibility in grid design can be used to focus resolution along rivers and around wells, for example, or to subdiscretize individual layers to better represent hydrostratigraphic units.

MODFLOW-USG is based on an underlying control volume finite difference (CVFD) formulation in which a cell can be connected to an arbitrary number of adjacent cells. To improve accuracy of the CVFD formulation for irregular grid-cell geometries or nested grids, a generalized Ghost Node Correction (GNC) Package was developed, which uses interpolated heads in the flow calculation between adjacent connected cells.

MODFLOW-USG includes a Groundwater Flow (GWF) Process, based on the GWF Process in MODFLOW-2005, as well as a new Connected Linear Network (CLN) Process to simulate the effects of multi-node wells, karst conduits, and tile drains, for example. The CLN Process is tightly coupled with the GWF Process in that the equations from both processes are formulated into one matrix equation and solved simultaneously. This robustness results from using an unstructured grid with unstructured matrix storage and solution schemes.

MODFLOW-USG also contains an optional Newton-Raphson formulation, based on the formulation in MODFLOW-NWT, for improving solution convergence and avoiding problems with the drying and rewetting of cells. Because the existing MODFLOW solvers were developed for structured and symmetric matrices, they were replaced with a new Sparse Matrix Solver (SMS) Package developed specifically for MODFLOW-USG. The SMS Package provides several methods for resolving nonlinearities and multiple symmetric and asymmetric linear solution schemes to solve the matrix arising from the flow equations and the Newton-Raphson formulation, respectively.

* MODFLOW-USG download link provides freeware version of the software.

Similar Software
MODFLOW Core Version:6.2.1 · USGS
MODFLOW Core

Modflow-2005 and Modflow 6

MODFLOW is considered an international standard for simulating and predicting groundwater conditions and groundwater/surface-water interactions.

ModelMuse Version:4.3 · USGS
ModelMuse

Graphical User Interface for MODFLOW, MT3DMS, SUTRA, PHAST, MODPATH, and ZONEBUDGET

ModelMuse is a graphical user interface for MODFLOW-2005, MODFLOW-LGR, MODFLOW-LGR2, MODFLOW-NWT, MODFLOW-CFP, MT3DMS, SUTRA, PHAST, MODPATH, and ZONEBUDGET

PMWIN Version:5.3.3 · Simcore Software
PMWIN

Processing Modflow 5.3.3

Processing Modflow version 5. 3 is included in the first edition of the book 3D-Groundwater Modeling with PMWIN published by Springer-Verlag.

Processing Modflow Version:11.0 · Simcore Software
Processing Modflow

Groundwater Modeling System

Processing Modflow (PMWIN) is a comprehensive integrated groundwater modeling system that is used by many organizations, such as research institutions, consulting firms, agencies, and entities of the United Nations.

GSFLOW Version:2.1 · USGS
GSFLOW

Groundwater and Surface-water Flow Model

GSFLOW is a coupled Groundwater and Surface-water FLOW model based on the integration of the USGS Precipitation-Runoff Modeling System (PRMS-V) and the USGS Modular Groundwater Flow Model (MODFLOW-2005 and MODFLOW-NWT).

Comments & Reviews

No comments yet. Be the first to comment.

Submit a review about MODFLOW-USG software with your social media profile

avatar
Rate This Software

No one has rated MODFLOW-USG yet. Be the first to rate this product.

Popular Programs

9385 hitsHEC-RAS 6.0

HEC-RAS is designed to perform one-dimensional hydraulic calculations for a full network of natural and constructed channels.

4123 hitsHEC-HMS 4.7.1

The Hydrologic Modeling System (HEC-HMS) is designed to simulate the complete hydrologic processes of dendritic watershed systems.

3844 hitsPMWIN 5.3.3

Processing Modflow version 5. 3 is included in the first edition of the book 3D-Groundwater Modeling with PMWIN published by Springer-Verlag.

3601 hitsAquiferWin32 6.0

Aquifer test analysis is an integral part of groundwater modeling, supplying critical hydraulic parameters to the model or other basic groundwater calculations.

New & Updated

19 AugDEWATER 1.0

This Excel spreadsheet refers to the dewatering design during construction and calculates the settlements of neighboring buildings.

24 DecSMS 13.1

SMS (Surface-water Modeling System) is a complete program for building and simulating surface water models from Aquaveo.

10 DecWMS 11.1

Aquaveo WMS (Watershed Modeling System) is a watershed computer simulation and modeling software application from Aquaveo. WMS is a all-in-one hydrologic and hydraulic solutions and pipe network tools.

3 DecGMS 10.5

GMS (Groundwater Modeling System) is water modeling application for building and simulating groundwater models from Aquaveo.