Upcoming Events in 2021

February 5, 2021
There are a few events coming up this year that we would like to make you aware of. Thunderhead Training See the Thunderhead Training page for more information and to register for the events below. Location Date Course AsiaAus/NZ February 16 and 17 February 23 and 24 March 2 and 3March 9 and 10 PyroSim/FDS Workshop22:00 UTC on Monday and Tuesday (Tuesday and Wednesday morningin ... Read More...

PetraSim 2020.2.1222

January 5, 2021

This release of PetraSim includes a number of small bug fixes, as well as enhanced support for TOUGH3.


All FEMTC 2020 Videos Now Available

December 16, 2020

In September, Thunderhead Engineering welcomed a record attendance to FEMTC 2020 in its first virtual edition. We are excited to present to you the full set of presentations from our event with videos, papers, and slides available. This material is free for anyone to download/view.


2020.5 Release – Available Now

November 17, 2020

Our latest updates for PyroSim, Pathfinder, and Results are available now. View our Release Notes to download and see the full details, or read on for a quick look at what’s new.


Monte Carlo Improvements in Pathfinder 2020.5

November 13, 2020

Since Pathfinder 2018.3, users have been able to take advantage of Monte Carlo simulations through a command line interface. In modeling, the Monte Carlo method is used to randomize inputs across many simulation instances. With a statistical analysis applied, users can create probablistic interpretations of the resulting data sets. It is often used in research and is also required by regulations such as RiMEA.


2020 R&D Overview – Past, Present, & Future

November 5, 2020

In Brian’s second talk at FEMTC 2020, he presents an overview of research and development at Thunderhead Engineering in the years since FEMTC 2018. If you haven’t yet watched his first presentation, you can view it now for a deep dive into Pathfinder movement behavior research. This presentation covers the bulk of many other topics we’ve focused on.


New PyroSim Workshop Dates Available

November 3, 2020

Want to learn how to improve your fire modeling skills? Dave McGill has worked with Thunderhead Engineering to provide PyroSim and FDS training to hundreds of attendees for many years. We are excited to announce the latest dates, viewable at our online schedule, for his acclaimed courses in an online workshop format.


Visual Improvements in Results 2020.5

November 2, 2020
Since introducing our Results application which combines PyroSim and Pathfinder output into a single workspace, we have continued to improve the visual realism of this package. Our users report that improvements in rendering smoke, textures, and occupant animation not only give their work a more professional look, but also increase the clarity of their findings. In the 2020.5 release, we will add several new features to deliver even better modeling output. Read More...

Social Distance, Queues, and More Research

October 27, 2020
In September, Thunderhead Engineering welcomed a record attendance to FEMTC 2020 in its first virtual edition. We are excited to begin delivering the presentations from that conference to everyone. First, we have a discussion of several different occupant movement topics researched by the Thunderhead Engineering R&D team and presented by President Brian Hardeman. There's more to come! Read More...

2020.4 Release Preview

September 2, 2020
PyroSim and Pathfinder 2020.4 bring many new features. Here is a quick look at the biggest additions. View the full release notes for PyroSim and Pathfinder. Read More...