News

In real-world pedestrian movement scenarios, different percentages of the population will use stairs or escalators. In addition, some portion of the population will walk on an escalator and others will stand. This example model demonstrates a method within Pathfinder to model these percentages and difference in movement characteristics. Read More...

This release fixes a bug preventing groups from being deleted in the PyroSim Navigation panel.  Read More...

PyroSim 2019.1 and Pathfinder 2019.1 include linear dimensions and object labels as a tool in Results. This feature has been requested by users in order to provide a better documented report to officials. “Inspectors, when verifying fire risk calculation reports, require the presence of object sizes on the plans so that they can verify the compliance ... Read More...

This release adds dimensioning and labeling tools for results, additional VR hardware support, new analysis options to visualize occupant movement, and bug fixes.  Read More...

This release adds support for new dimensioning and labeling tools in Results, additional VR hardware support, as well as updated support for FDS version 6.7.1.  Read More...

Thunderhead Engineering is offering a workshop in London during the week of February 18 to educate users on PyroSim and Pathfinder. The PyroSim/FDS workshops are split into introductory and advanced courses which each last two days. The Pathfinder workshop is presented in a single day. Students will learn applicable skills to use fire and evacuation ... Read More...

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...

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...

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...

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...