Simulation Software for Science and Engineering

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Pathfinder 2018.4.1210

December 10, 2018
This release adds support for BIM model import using the IFC format, more options for occupant models, and support for opening Results visualization in VR headset mode.  Read More...

PyroSim 2018.3.1210

December 10, 2018
This release adds support for BIM model import using the IFC format, opening Results visualization in VR headset mode, and updated support for FDS version 6.7.0.  Read More...

IFC Import to Pathfinder (and PyroSim)

November 14, 2018
The next releases of Pathfinder and PyroSim will include the capability to import Industry Foundation Classes (IFC) files that describe building data. In Pathfinder, this can significantly speed model creation since it includes automatic extraction of  floors, doors, and stairs. This post demonstrates this feature.  Read More...

Modelling of Pulsing Post-flashover Compartment Fires

November 12, 2018
One poorly understood compartment phenomenon is pulsating fires. Under certain circumstances, pulsing behaviour have been observed in both pre- and post-flashover compartments and have been identified with poorly ventilated compartments. In this paper, a series of small scale post-flashover compartment fires that exhibited sustained harmonic pulsing are simulated in FDS6. Read More...

Manually Coupling FDS and Pathfinder to Respond to Smoke

November 7, 2018
A long-term development goal has been to fully couple the PyroSim/FDS fire results with Pathfinder evacuation. A first step toward this goal is the capability to display both fire and evacuation results in the same results viewer. However, full coupling of the two simulations has not been completed. In the interim, it is possible to run the fire simulation, monitor the reduced visibility due to smoke, and then manually use that information to slow and re-direct occupants in response to the fire. This provides an example.  Read More...
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