Aquaveo & Water Resources Engineering News

GMS: mod-PATH3DU Support in GMS 10.1

By mkennard@aquaveo.com on January 13, 2016

GMS 10.1 includes support for mod-PATH3DU, a particle tracking package that works with unstructured grids. Here's a close-up view of particles around a well taken from our tutorial.

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GMS mod-PATH3DU

GMS Sprint December 2015

By mkennard@aquaveo.com on January 13, 2016

Some of the more notable things completed by the GMS team during the month:

Fixed a few bugs
Added to wiki for MODFLOW CLN package
Started adding lidar example to Rasters tutorial
Enhancements to UGrid interpolation
xmsng: Finished grid quality metrics
xmsng: Finished support for refine points in mesh
xmsng: Finished relaxing of mesh points
xmsng: Added conversion of linear to quadratic elements
xmsng: Added decimaton of an existing UGrid mesh
xmsng: Converged on a point in polygon approach, with tests
Much code refactoring

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GMS sprint

GMS Sprint November 2015

By mkennard@aquaveo.com on January 13, 2016

Some of the more notable things completed by the GMS team during the month:

Fixed several bugs
Added conceptual model support for MODFLOW CLN package
Wrote a tutorial for MODFLOW CLN package
Implemented VTK to CAD
xmsng: Added callbacks during meshing for status
xmsng: Added relaxing of mesh nodes
xmsng: Added meshing multiple polygons and stitching into one mesh
xmsng: Added breaklines in meshing
xmsng: Added interpolation to meshed polys
xmsng: Started adding support for refine points in meshing
xmsng: Started on unstructured grid quality metrics
xmsng: Started on support for scalar paving
Much code refactoring

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GMS sprint

GMS Sprint October 2015

By mkennard@aquaveo.com on November 19, 2015

Some of the more notable things completed by the GMS team during the month:

Fixed several bugs
Combo boxes in table dialog no longer require three clicks
UGrid now included in Convert to CAD
USACE project work
Much code refactoring

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GMS sprint

GMS Sprint September 2015

By mkennard@aquaveo.com on October 29, 2015

Some of the more notable things completed by the GMS team during the month:

Fixed several bugs
More work on isosurface volumes
Name file manager preserves original file names
PCG7 support
Added ability to invert tables to show them like properties
Final mod-PATH3DU work
Print layout work
Work on a mesher for USACE
Much code refactoring

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GMS sprint

GMS 10.1 Beta posted

By mkennard@aquaveo.com on October 29, 2015

GMS 10.1 Beta has been posted on the downloads page. Some of the new features include:

GNC (Ghost Node Correction) Package for MODFLOW-USG
SWI (Seawater Intrusion) Package for MODFLOW-USG
CLN (Connected Linear Network) Process for MODFLOW-USG
Import of MODFLOW-USG models created outside GMS
Observations for MODFLOW-USG
Pilot points for MODFLOW-USG
Name file / unit number manager and improved support for unsupported packages
A Cell Summary text file as part of the MODFLOW solution
mod-PATH3DU particle tracking
UGrid refinement
UGrid isosurfaces
UGrid interpolation
UGrid vector display
Several new options for exporting files: VTK, Shapefiles, TOUGH2, GSF...
6 new tutorials
...and many more new features and user requests

See the full list of What's New in GMS 10.1.

GMS and TOUGH2

By mkennard@aquaveo.com on October 1, 2015

The image below comes from a poster presentation created by a GMS user, Andrea Borgia, who has been using GMS for pre- and post-processing of TOUGH2 models. Although GMS doesn't have an interface to the TOUGH2 model, Andrea has developed a workflow to make it work. In GMS 10.1 it will be possible to export UGrids to TOUGH2 MESH input files. Thanks Andrea!

GMS Sprint August 2015

By mkennard@aquaveo.com on September 1, 2015

Some of the more notable things completed by the GMS team during the month:

Fixed 6 bugs
Rewrote isosurface volumes code to fix accuracy problems
Implemented display of CLN wells
Finished initial mod-PATH3DU interface and tutorial
Various code refactorings and improvements
Cell summary added to MODFLOW solution

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GMS sprint

GMS Sprint July 2015

By mkennard@aquaveo.com on August 13, 2015

Some of the more notable things completed by the GMS team during the month:

Fixed several bugs
Greatly sped up voronoi UGrid creation
Finished CLN wells interface
Create a new tutorial for the Name File dialog
Progress on mod-PATH3DU
Added exporting of solids to VTK file format
Started on a new tutorial about projections
Added a number of user requests from the forum:

Material legends in the Cross Section Editor
Right-click to uncheck all layers in the CAD menu
Added a preference for changing the direction of the mini-grid increment/decrement
Added a preference for inverting the mouse wheel zoom direction
Changed it so attached cross sections are cleared but not deleted when editing a borehole
Added descriptions to borehole segments
Cross section editor plot lines can now appear in back of cross section

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GMS sprint

Improved Voronoi Grid Generation

By alemon on August 10, 2015

Support for unstructured grids (UGrids) began with GMS version 10. A variety of UGrids can be created using GMS. One type of UGrid is a Voronoi grid. A voronoi grid has certain desirable characteristics related to the computational scheme of MODFLOW-USG: MODFLOW-USG assumes that connected cells are perpendicularly bisected by a line connecting the centers of the cells. Recent enhancements to GMS 10.1 include a much faster Voronoi grid generator. An example model is shown below of a voronoi grid of the Biscayne Bay model area. This grid was generated in about 30 seconds on a core i7 3.4 GHz processor. The final grid has about 200,000 cells.