Tutorials

Modeling Fire, Part 4 Addendum – Re-Analysis using HRRPUA Curve

March 19, 2014
This is an addendum to the Part 4 video on fire modeling. We re-analyzed the problem, changing the Heat Release Rate Per Unit Area (HRRPUA) from a constant value to a function (or curve). Read More...

Modeling Fire, Part 4 – Combustion with HRR, Ignition, and Burn Away

March 5, 2014
In this video we show how to model a fire using a specified heat release rate per unit area (HRRPUA), an ignition temperature, and burn away. This is about as complicated as models can be made without also simulating pyrolysis. Read More...

Modeling Fire, Part 3 – Combustion using HRR

February 23, 2014
FDS can be a useful tool for both a fire protection engineer and a fire researcher. The challenge is that this can result in a bewildering array of options with respect to modeling the combustion process. Read More...

Modeling Fire, Part 2 – Heat Release Rate

February 14, 2014
When we specify a Heat Release Rate, we are really specifying the rate at which fuel is released into the fire simulation. The fuel mass flow rate is calculated so that combustion will release heat at the desired rate. Read More...

Modeling Fire, Part 1 – Reactions

February 14, 2014
All PyroSim (FDS) models that include combustion must define a gas phase reaction that converts fuel to combustion products. We review the "simple chemistry" approach in FDS. Read More...

Using PyroSim for Parallel Processing of Multiple Meshes

January 27, 2014
This video shows reasons to use multiple meshes, rules and guidelines for defining multiple meshes, how to use the multiple mesh tools, and how to run a parallel processor solution. Read More...

HVAC Pressure Drop Verification

January 7, 2014
In this model, there are three HVAC nodes and two HVAC ducts. The calculation for the expected pressure loss in the duct without a fan was done in a spreadsheet that you can download. Read More...

Create CO Sampling Device

December 28, 2013
This video demonstrates how to add a carbon monoxide detector and view its output. Read More...

Model a Long Tunnel

June 14, 2013
This video covers topics such as importing 3D dxf files, mesh strategies, and gravity vector ramps for a long tunnel in PyroSim. Read More...

Create Stairs

August 27, 2010
This brief tutorial demonstrates how to quickly create stairs using the Copy/Move action and editing multiple obstructions at the same time. Read More...