News

PetraSim: Internal regions with DXF geometry from SketchUp.

March 30, 2011

We have posted a short video showing how to create DXF files in SketchUp and then use them to subdivide a PetraSim model into geometric regions. The demo shows how to create a cylinder inside a rectangular model and assign material properties to the cylinder.

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PetraSim 5.1.1524

March 24, 2011
This release adds the capability to specify surface injection and production (source/sink) using flux. The specified flux is multiplied by the projected area on the XY plane to calculate flow. Changes since PetraSim 5.1.1416 include: New capability to specify surface injection and production flux. Added new TOUGH2 example that demonstrates natural state and production analyses using a surface ... Read More...

Pathfinder Performance Improvements

March 7, 2011
We just finished a round of optimization and now we have the data to show that the upcoming version of Pathfinder will be an improvement both in speed and in memory consumption. Read More...

Pathfinder 2011 Beta 2, Progress

February 25, 2011

The second development phase for Pathfinder 2011 is underway. We've already made good progress on waypoint scripting and we've also made some changes to enable parallel processing. Read More...

Pathfinder Case Study, Door Selection

February 16, 2011

Recent Pathfinder development has been, to a large extent, focused on our new Locally Quickest approach to controlling how an occupant moves out of its current room. One of the toughest challenges during this sort of simulator development is identifying what the simulator should do. When we find published research that can be compared to our answers, its exciting and very helpful.

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PetraSim 5.1.1416

February 16, 2011

This release fixes a bug related production boundary conditions in TOUGHREACT and improves the input file reader in TMVOC. Read More...

PetraSim 5.1.1408

February 8, 2011

This release fixes a bug in PetraSim's Load Well Flow Rates feature and includes several other minor improvements. Read More...

PetraSim 5.1.1402

February 2, 2011
This release fixes a TOUGHREACT input file format error. In models that contained more than one linear Kd zone, PetraSim was omitting the zone terminating asterisk – causing TOUGHREACT to halt prematurely. This update corrects the formatting error, allowing TOUGHREACT models with multiple linear Kd zones.  Read More...

Testing for First Beta Release

January 31, 2011
Pathfinder development last week was focused on internal testing and bug fixes. The first pass revealed some regressions that we needed to deal with prior to a public beta. On the bright side, the added flexibility of our new locally quickest technique made it possible to fix some known bugs from previous releases. This week we will run through our test set again and (if all goes well) post a public beta shortly after. Read More...

PetraSim 5.1.1320

January 21, 2011

This release changes Line Plots and fixes a problem in 3D Results that prevented vectors from appearing on slice planes. This release also includes fixes to the TOUGH2 input file writer. Read More...