winget install --id Thunderhead.PyroSim.2025About PyroSim 2025
PyroSim was designed to complement the Fire Dynamics Simulator (FDS) developed by NIST in the US. With state-of-the-art fire research facilities and personnel, they understand the calculations of fire simulation better than anyone. FDS is the engine powering fire simulations all over the world. PyroSim empowers more engineers to use this technology and elevates its capabilities. 1. PyroSim provides graphical tools which automatically generate the text-only FDS input file. 2. PyroSim imports CAD, enables advanced si...
What's new in 25.1.0826
What's New This release adds a new Mesh Refinement Zones feature and a flurry of User Experience Improvements. This version of PyroSim is designed for FDS version 6.10.1 and uses version 21.0.2+13 of the OpenJDK Java VM. Mesh Refinement Zones This release of PyroSim provides a powerful new feature to increase the fidelity and speed of your simulations. When working with FDS models, it is often useful to create meshes with different cell resolutions. Creating fine resolution meshes around areas of high volatility, such as around a fast-growth fire source, provides a higher level of detail to the calculations. However, using a fine mesh throughout the entire model would cause the simulation to take much longer than necessary. In this scenario, the best approach is to create a fine local mesh around the volatile area, then use coarser meshes throughout the rest of the model. This process however, is very tedious. Multiple meshes need to be created, and the meshes must all be aligned to a tight tolerance to ensure that the FDS calculations align properly. Additionally, if resolution changes are made to any of the meshes, the entire set of meshes needs to be realigned. This is where Mesh Refinement Zones come in. Mesh Refinement Zones allow you to specify areas inside your meshes that you would like to have a higher cell resolution. Mesh Refinement Zones can apply a 2x or 4x level of refinement compared to the surrounding Mesh. Once specified, PyroSim takes care of the rest. Creating a Mesh Refinement Zone in PyroSim 2025.1. This feature also works with 'Scenarios' in PyroSim, a...
Version history
| Version | Updated | Notes |
|---|---|---|
| 25.1.0826 | Unknown | What's New This release adds a new Mesh Refinement Zones feature and a flurry of User Experience Improvements. This version of PyroSim is designed for FDS version 6.10.1 and uses version 21.0.2+13 of the OpenJDK Java VM.... |
| 25.1.0728 | Unknown | What's New This release adds a new Mesh Refinement Zones feature and a flurry of User Experience Improvements. This version of PyroSim is designed for FDS version 6.10.1 and uses version 21.0.2+13 of the OpenJDK Java VM.... |