NEW version of HGS (April 2022 - Revision 2385)

The HydroGeoSphere Revision 2385 (April 2022) is now available for download.

This is a really big update that introduces a significant new feature in addition to the usual bug fixes and usability improvements.

We’re really pleased to announce that particle tracing capabilities have now been introduced to HydroGeoSphere. If you are interested in this new feature please visit the HGS User Community to review our detailed post introducing particle tracing (including an example project, and explanation of the numerical implementation).

To support particle tracing a number of new commands have been introduced to HGS, including:

  • ‘trace particle’ that causes HGS to activate particle tracing.

  • ‘trace particle logging’ that causes HGS to write detailed information for each particle to an ASCII file.

  • ‘initial particle location file’ that causes HGS to specify the initial location and release time for particles using an ASCII input file.

  • ‘initial particle location by layer from file’ that causes HGS to specify the initial location by layer and release time for particles using an ASCII input file. Particles will be placed at the vertical mid-point of the assigned layer.

  • ‘output times for particle locations’ that causes HGS to record particle locations at specified times.

  • ‘maximum trace time’ that causes HGS to specify the maximum time at which particle traces are updated. Tracing effectively stops after this time.

  • ‘maximum trace count’ that causes HGS to limit the maximum number of locations allowed in a particle trace path (can be used to limit memory consumption).

  • ‘maximum trace output’ that causes HGS to limit the maximum number of particles to record in the particle trace and particle location output files.

  • ‘maximum particle reflection count’ that causes HGS to limit the number of particle reflections that are permitted over a trace step when updating a particle's location. This command allows HGS to deactivate particles that are unable to move from one element to a neighboring element.

Example of Particle Tracing with the R5 Tutorial Project. Visit the HGS User Community to download.

We’ve also introduced new commands to support more advanced solute definition and more advanced definition of conductivities and porosity for the porous media domain:

  • ‘isotropic effective diffusion coefficient’

  • ‘zoned isotropic effective diffusion coefficient’

  • ‘anisotropic effective diffusion coefficient’

  • ‘zoned anisotropic effective diffusion coefficient’

  • ‘scale k for chosen elements’ that scales hydraulic conductivity in grok for a set of chosen elements

  • ‘scale porosity of chosen elements’ that scales porosity in grok for a set of chosen elements

As always we are committed to resolving user-reported bugs and continued improvement to the user experience. Do you have suggestions for new commands or improvements to the user experience? Send your ideas to support@aquanty.com!

The latest installers are available on the HGS download page and a full list of changes/updates can be found in the release notes.

Download the April 2022 release of HydroGeoSphere here: https://www.aquanty.com/hgs-download

Review the release notes here: https://www.aquanty.com/updates

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HGS RESEARCH HIGHLIGHT – Transit-Time and Temperature Control the Spatial Patterns of Aerobic Respiration and Denitrification in the Riparian Zone

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HGS RESEARCH HIGHLIGHT – Finite-volume flux reconstruction and semi-analytical particle tracking on triangular prisms for finite-element-type models of variably-saturated flow