News

Assign FDS Meshes to Specific MPI Processes

December 18, 2015
This feature allows additional MPI and OpenMP parameters to be added to each MESH line in PyroSim, without the need to export and edit the file by hand and run from the command line. Read More...

PyroSim 2015.4.1214

December 14, 2015
This release fixes bugs that could cause corrupted file errors when loading models created by older versions of PyroSim. Download the latest version of PyroSim from the PyroSim download page or by registering for a free 30-day trialRead More...

PyroSim 2015.4.1208

December 8, 2015
This release adds syntax highlighting and line numbers to the record view; adds advanced data entry for the MESH, TIME, and MISC name lists; and updates FDS support to version 6.3.2. Download the latest version of PyroSim from the PyroSim download page or by registering for a free 30-day trial. This version of PyroSim is designed for ... Read More...

Evacuation using Familiar Routes

December 3, 2015
Using Pathfinder, we show how to require some occupants to evacuate using familiar routes. Read More...

Refuge Floor, Firefighters, and Elevators

December 1, 2015
In this example, we show some advanced evacuation features of Pathfinder: a refuge floor, evacuation using banks of elevators, and firefighters in stairs moving against the flow in the evacuation of a high-rise building. Read More...

Freezing HRR in PyroSim

November 11, 2015
A common strategy when modelling a fire with sprinklers is to assume the fire will be held at a constant heat release rate (HRR) when the first sprinkler activates. This post shows how to do this by automatically "freezing" the HRR at a constant value when a sprinkler activates.  Read More...

Improved Cornering in Pathfinder 2015.2

October 21, 2015
Changes in the movement algorithms for Pathfinder 2015.2 have improved the cornering capabilities of occupants in high density, wide corridor turns. The cornering behavior seeks to steer agents so that they can take wide turns as part of a group without cutting in front of each other. Read More...

Training Events in Singapore, October 2015

October 14, 2015
The event "Best Practices for Fire Simulation: PyroSim and Pathfinder", will be hosted in Singapore at SCDF HQ, 91 Ubi Avenue 4, by our distribution partner Building System & Diagnostics Pte Ltd (BSD). Bryan Klein from Thunderhead Engineering will be presenting. Read More...

Advanced Up/Down Speed Properties

October 13, 2015
In the previous release, fundamental diagram customization added increased control over pedestrian movement by allowing users to define the relationship between speed and density. Pathfinder 2015.2 adds customization for stairs and ramps with independent up or down speed restrictions, and fundamental diagram customization. Read More...

Pathfinder 2015.2.1012

October 12, 2015
This update adds improved movement algorithms for group cornering and counterflow, separate speeds for moving up and down stairs, and import support for AutoCAD 2016. Read More...