News

Radiative Fraction and Q_RADI Output

February 26, 2015
The heat released as a fire burns is distributed to the environment primarily through convection and radiation. But, when you check the FDS output files you may see a different fractional amount of radiation in the Q_RADI column. Read More...

Training Events in Singapore and Malaysia

February 20, 2015
Three training events will be hosted in Singapore and Malaysia by our distribution partner Building System & Diagnostics Pte Ltd (BSD). Bryan Klein from Thunderhead Engineering will be presenting the course materials. Read More...

Modeling Jet Fans, Part 1: Background and Convergence Study

February 17, 2015
This post discusses modeling jet fans using FDS/PyroSim, with the eventual goal of modeling parking garages. It starts with some background information that was useful to me in helping me understand the problem. Read More...

PyroSim 2015.1.0130

January 29, 2015

This update of PyroSim fixes issues with device settings being erased when closing models, as well as other common bugs.
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Create a t-squared Fire

January 7, 2015
In PyroSim, there is not a direct way to enter the alpha value for a t-squared fire. This short video will show you how you can determine the time to peak HRRPUA. Read More...

Add Slice Output

December 19, 2014
Adding Slice output to a model is quick and easy with the Slice Tool. This video demonstrates how to add a slice and to change the slice output options with the Slice tool properties dialog. Read More...

PyroSim 2014.4.1208

December 8, 2014

This is a maintenance release of PyroSim. This release fixes a critical bug causing PyroSim to crash when when trying to copy or move a sprinkler. Read More...

Modeling a Pressure Relief Vent

November 18, 2014
This post analyzes a pressure relief vent, where air is injected into a room, the pressure in the room is monitored, and a vent is opened when a set pressure is reached. The key is to include at least two pressure zones in your model. Read More...

PyroSim 2014.4.1105

November 5, 2014

This is a maintenance release of PyroSim. This release includes updates for FDS and Smokeview as well as a fix for a bug that could cause PyroSim to crash when when trying to copy or move a sprinkler. Read More...

PyroSim/FDS and Pathfinder Training at International Locations

November 3, 2014

In 2015, Thunderhead Engineering will offer PyroSim/FDS and Pathfinder training at several international locations. Each training session will include a two day PyroSim/FDS workshop, a two day Pathfinder workshop, and a one day introduction to an FDS/PyroSim distance education course offered through Seneca College. Read More...