Aquaveo & Water Resources Engineering News

GMS Sprint October 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 September 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 10.1 Beta posted

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.


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 TOUGH2 poster

GMS Sprint August 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 July 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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Improved Voronoi Grid Generation

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.
Model Area
Voronoi Grid
Zoomed view of northern rectangle
Zoomed view of southern rectangle

MODFLOW & More 2015 conference

Alan Lemon and Norm Jones had a great time at the MODFLOW and More 2015 Conference May 31 - June 3. We didn't seem to take any pictures of the conference, but here's one from the IGWMC Facebook page and if you look closely you can just make out the edge of the Aquaveo booth off to the right of the photo. :)

MODFLOW & More 2015 Photo

GMS Sprint June 2015

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

  • Fixed several bugs
  • Finished MODFLOW-USG translator. GMS can now read USG models created outside of GMS
  • Mostly finished the quadtree UGrid improvements
  • Increased interpolation speed even further
  • Support for AUTOFLOWREDUCE in MODFLOW-USG well package
  • Lots of testing improvements and refactoring
  • Training course in Ostrava, Czech Republic
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GMS Training, Ostrava, Czech Republic

The GMS team recently completed an introductory course in Flow and Transport Modeling in Ostrava, Czech Republic. Many thanks to Rapantova Nada for organizing the class at Technical University of Ostrava.