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.

Floor Plan Image Source: Joel on Software: Open House.

This scenario is taken from the SFPE Engineering Guide for Human Behavior in Fire. 300 occupants are placed 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.

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 and copy tools.

This brief tutorial demonstrates how to quickly create stairways using the Copy/Move action and editing multiple obstructions at the same time.

This video is a complete walkthrough of a carport model design and simulation. Based on an example problem presented at an SFPE Advanced FDS training course.

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 to assess smoke production and smoke movement from various car and truck design fire scenarios as part of an assessment to review occupant egress conditions throughout the vehicle decks. The fire modeling was also used to assess the thermal impact on the deck resulting from the large design fire scenarios.

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 ample time for escape.

Submission by: Alex Kline, Rolf Jensen & Associates

The Binyaney Ha`uma Railway Station and Tunnel is the underground portion of a commuter subway system that will connect Tel Aviv to Jerusalem, Israel. The tunnel is approximately 1 mile long and terminates at the passenger station which will be located approximately 200 feet below the streets of Jerusalem. RJA provided fire modeling services for the entire railway station and tunnel to assess the impact a train fire developing in either the station or tunnel on the proposed smoke control system.

Submission by: John Brooker, NASA Glenn Research Center

The International Space Station Destiny Laboratory smoke detection model showing main section, endcones, and hatches enclosed within a rectilinear grid. There are six overhead supply diffusers, six deck return registers, and one deck diffuser for air ventilation. Two area smoke detectors are located in front of the forward and aft return registers.

This is an update for the PetraSim 5 beta release.

• Added TOUGH2-MP support. The EOS3 module is included with this release.
• TOUGH2-MP options have been added to the Simulation Parameters dialog.
• TOUGHREACT EXEs have been rolled back to the build deployed with PetraSim 4.2. This fixes a convergence bug caused by compiler optimizations.
• When switching EOS modules, variable format data will be reset. State variables may still be re-interpreted to invalid values.
• Fixed a bug that caused PetraSim to fail to import old SIM files that did not contain a mesh.
• A warning is now shown when creating a new mesh will destroy existing cell data.
• Improved the performance of the tree view when working with large numbers of cells.
• The Show Vectors UI component is now properly linked to vector visibility in the 3D results.
• Fixed a bug that caused PetraSim to be locale-sensitive when selecting the decimal character for TOUGH2 input files (e.g. sometimes use commas instead of periods).

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