News

PetraSim 5.0.0928

September 28, 2010

This is the first official release of PetraSim 5. Changes since PetraSim 5.0.0907 (RC1) include:

  • Increased the FOFT/GOFT/COFT cell limit in TOUGH2-MP to 5,000.
  • The mesh cell limit in all TOUGH2 and TOUGHREACT simulators has been raised to 99,999. Other new limits include: 300,000 connections, 100,000 time history pairs, and 5000 source/sink cells.
  • In TOUGHREACT, the Advanced Solution Controls now contains an option to switch between TOUGHREACT v1.0 and v1.2
  • Fixed a bug that caused SAVE file cell entries to be skipped when a primary variable value was negative.
  • Fixed a bug that prevented PetraSim from using over 99 materials.
  • Fixed a bug that caused 2D plots to display incorrect vector results data.
  • TOUGHREACT chemical zone data can now be specified at the layer level.
  • The status bar now displays the number of active mesh cells.
  • In the 3D view, when cells are showing, data for the cell that is currently under the mouse pointer is displayed (e.g. coordinates, current coloring value).
  • Fixed memory leak that occurred during model creation and when viewing 3D Results.

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Yannick Sheid

September 7, 2010
Numerical simulation of air flow during tunnel advance.  Read More...

Andrea Dunn

September 7, 2010
Investigation of air and LNAPL entrapment in the Partially Saturated Fringe (PSF – the region bounding the water table in the groundwater system) in heterogeneous systems in the presence of a rising water table. For more on this work, see: .  Read More...

PetraSim 5.0.0907 (RC1)

September 7, 2010

This is an update for the PetraSim 5 beta release.

  • Added remaining TOUGH2-MP EOS support (simulator executables).
  • The TOUGH2-MP EOS9 executable is not currently recommended. It originated from a different code base and has not yet been made consistant with the other simulator versions.
  • Material can now be specified by layer (in addition to global, region, and cell).
  • Fixed a bug in the mesh creator that occurred when using an auto-fit boundary.
  • Fixed a bug in the Polygonal mesh creator UI that sometimes caused the cell count estimate to be negative.
  • Fixed a bug in the layer manager that prevented color and top/base changes from correctly propagating through the event system.
  • The Tree View will no longer become too thin when PetraSim is run at 800x600 resolution.

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Floor Plan Image

August 27, 2010

This example shows how to use Pathfinder's drawing tools with a floor plan image to quickly create the complex geometry needed to represent an office space.

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SFPE 1

August 27, 2010

This scenario comes from from the SFPE Engineering Guide for Human Behavior in Fire. 300 occupants are positioned in a large room with two stairways leading to the exit. This video demonstrates the different simulator modes available in Pathfinder as well as geometry creation.

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IMO Test 10

August 27, 2010

This International Maritime Organization (IMO) test scenario is designed for qualitative verification of evacuation models. 23 occupants are placed in several cabins and given a specified exit. This video demonstrates how to quickly create a Pathfinder model using the drawing and copy tools.

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Create Stairs

August 27, 2010
This brief tutorial demonstrates how to quickly create stairs using the Copy/Move action and editing multiple obstructions at the same time. Read More...

Vehicle Ferry

August 26, 2010
Submission by: Craig Hofmeister, Rolf Jensen & Associates A new 362-foot passenger and vehicle ferry vessel is under development and will include capacity for up to 1500 passengers and 144 vehicles. The vessel will include two vehicle decks with accommodations ranging from small passenger cars to larger freight and large goods trucks. RJA provided fire modeling services ... Read More...

The Welcome Pavilion, Yas Island Retail, Abu Dhabi

August 26, 2010
Submission by: Jason Pritchard, Mott MacDonald The Welcome Pavilion is the main entrance to a 300,000 sq m retail mall in Abu Dhabi. Mott MacDonald provided fire modeling services for the development. The purpose of the study was to trial proposed smoke extract designs – the aim being to keep smoke above head height indefinitely, giving occupants ... Read More...