News

Heat Release Rates of Burning Items in Fires

August 19, 2015
A paper by Hyeong-Jin Kim and David Lilley (Heat Release Rates of Burning Items in Fires, AIAA 2000-0722, January 2000) summarizes experimentally measured heat release rates for more than 60 different items that could be involved in fires. The data sets used by Kim and Lilley include FASTLite, HAZARD, and the Building and Fire Research Laboratory data sets. As part of preparing PyroSim examples, we developed a spreadsheet that calculates the heat release rates using the data and method described in the paper.  Read More...

PyroSim 2015.3.0810

August 10, 2015
This release includes expanded OpenMP threading support in FDS, a new lighting model in Smokeview, and options to save views and clip geometry. Read More...

PyroSim 2015.2.0604

June 4, 2015
This release fixes problems working with vents and fixes problems resetting the view to the correct bounds. Read More...

PyroSim 2015.2.0512

May 12, 2015

This release fixes bugs that caused PyroSim to crash during paste operations after loading a file and when moving vents. Localized versions of PyroSim now include additional translations. Read More...

PyroSim 2015.2.0511

May 11, 2015

This update of PyroSim adds  support for circular vents, 11 output quantities, and bug fixes.
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PyroSim Mesh Tools

April 17, 2015
This quick tip goes over a few of the available features in PyroSim for Meshes. Read More...

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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