PyroSim provides graphical tools which automatically generate the text-only FDS input file. PyroSim imports CAD, enables advanced simulation management, and packages its own results manager.

Videos related to the fire modeling program PyroSim, developed by Thunderhead Engineering.

PyroSim, built on the principles of computational fluid dynamics (CFD), simulates how fire behaves in different spaces, factoring in variables such as ventilation, materials, and human responses. With …

If you do not want to use pip you will have to append the root directory of pyrosim to your path before importing it (the root directory contains the setup.py file).

Nov 24, 2025 · Pyrosim is a graphical user interface for the Fire Dynamics Simulator (FDS), a computational fluid dynamics (CFD) software developed by NIST (National Institute of Standards and …

Jul 28, 2025 · 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 …

The PyroSim User Manual, Version 2024-2, provides comprehensive guidance on using the PyroSim software, including installation, modeling suggestions, and interface navigation.

Welcome to your first step in fire modeling with PyroSim! In this quick-start guide, you’ll learn:• 🔥 What PyroSim Is – A powerful commercial fire-dynamics ...

Feb 11, 2026 · By emphasizing practical fundamentals and approachable explanations, the new documentation makes it easier for users to build confidence and begin creating effective fire …

Getting Started ¶ The following examples all assume you have pyrosim installed and accessible system wide. All examples presented in this documentation can be found in the “demos/docs” folder in the …