Thunderhead News

2021.3 Release – Available Now

Posted on September 1st, 2021

The latest updates for PyroSim, Pathfinder and Results are available now. The 2021.3 release focuses on supporting the latest industry trends through the FDS 6.7.6 release and video rendering technology, while also providing advanced usability and simulation options for Pathfinder.

View our Release Notes to download and see the full details, or read on for a quick look at what’s new. … Read More

Improvements in Results 2021.3

Posted on September 1st, 2021

Results 2021.3 focuses on technology advancements in video rendering and providing new tools for users to enhance their presentation capabilities. … Read More

PyroSim 2021.2.0610 Patch Release – Available Now

Posted on June 10th, 2021

An issue in the PyroSim toolbar was recently identified. When results are available for viewing, the View Results and Plot Results buttons are disabled. This issue was introduced in the 2021.2.0525 release of PyroSim. 

We have identified the problem, and have uploaded a patch release which addresses the bug. The updated version of PyroSim is available now.

… Read More

2021.2 Patch Release – Available Now

Posted on May 26th, 2021

One of our Reseller Partners identified an issue when dragging items in the navigation view. When this happens, the application freezes and requires a forced shutdown to proceed. This issue was introduced in the 2021.2.0512 release of both PyroSim and Pathfinder. 

We have identified the problem, and have uploaded patch releases that addresses the bug. The updated versions of PyroSim and Pathfinder are available now.

… Read More

2021.2 Release – Available Now

Posted on May 10th, 2021

The latest updates for PyroSim, Pathfinder and Results are available now. The 2021.2 release focuses on creating new complex behaviors through queues, supporting social distancing through proximity analysis, and creating a better user experience.

View our Release Notes to download and see the full details, or read on for a quick look at what’s new. … Read More

Improvements in Results 2021.2

Posted on May 10th, 2021

Results 2021.2 includes a large new set of 2D plots for proximity analysis as discussed in a paper by Enrico Ronchi and Ruggiero Lovreglio. … Read More

2021.1 Release – Available Now

Posted on February 24th, 2021

The latest updates for PyroSim, Pathfinder and Results are available now. The 2021.1 release focuses on improving every day productivity.

View our Release Notes to download and see the full details, or read on for a quick look at what’s new. … Read More

Requested Improvements in Results 2021.1

Posted on February 10th, 2021

Our first release of the year will include requested improvements to our Results application. Results can view the output of the simulators embedded in PyroSim and Pathfinder. The improvements below help with visualizing social distancing hot spots using contours, showing cut outs from PyroSim slices, and improving the ability to edit colorbars for FDS results.

Social Distance Contours

Our first release of the year will include requested improvements to our Results application. Results can view the output of the simulators embedded in PyroSim and Pathfinder. The improvements below help with visualizing social distancing hot spots using contours, showing cut outs from PyroSim slices, and improving the ability to edit colorbars for FDS results.

Social Distance Contours
Figure: A Pathfinder model with the Social Distancing contour enabled. The occupants that are violating social distancing are highlighted with a scale that matches the severity of the violation.

Note: The social distancing contour has inverted coloring by default. This serves to better highlight the hotspots where occupants break social distancing.

Cut out obstruction in slices

After receiving several requests from users, we modified how the data inside of obstructions is displayed when viewing 2D and 3D slices in PyroSim Results. When viewing a slice in prior versions of PyroSim, the data inside of an obstruction was stored as a value of 0, and the slice would display the appropriate color for that region. In version 2021.1, slices will display blank areas where they intersect obstructions instead of showing the color for the 0 value. This should aid users and reduce confusion when showcasing results to clients and AHJs.

OBST data not cut out
Figure: A 2D temperature slice shown in version 2020.5 of PyroSim. The central wall (transparent and highlighted) appears in the slice as the blue color for a 0C temperature.
OBST data cut out
Figure: A 2D temperature slice shown in version 2021.1 of PyroSim. The central wall (transparent) does not appear in the slice, but the central hole in that wall (where relevant data is recorded) appears normally on the scale.

Colorbar – FDS Preferences Quantity selection

The FDS data preferences colorbar setting UI was updated so that the dialog now shows a drop-down for the quantity whose colorbar information you’re editing. If you activate an output object and then double-click the colorbar, it will show the FDS preferences dialog like before, but it will automatically select the quantity of the active object in the drop-down.

FDS Preferences Dialog

Note: There are some quantities that are technically the same. For example, GAS TEMPERATURE and TEMPERATURE are different quantities even though they both measure temperature. They show up as two different quantities in the drop-down since they have different names, and you can edit properties for each separately. You’re allowed to activate objects of both quantities at the same time, but only the properties for the last activated quantity are used.

All FEMTC 2020 Videos Now Available

Posted on December 16th, 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. … Read More

2020.5 Release – Available Now

Posted on November 17th, 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. … Read More

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