Simulation Software for Science and Engineering

Manage Geometry, Specify Parameters, Deliver Results

PyroSim

PyroSim

Fire & Smoke

Analyze fire control and smoke dissipation in various structures for fire protection and safety or investigation.

Pathfinder

Pathfinder

Evacuation

Understand pedestrian egress and congestion hazards for fire protection and safety or urban planning.

PetraSim

PetraSim

Subsurface Flow

Model nonisothermal multiphase flow and transport in fractured and porous media for environmental engineering.

Recent News and Announcements

Keep up to date on our products, training and events.

Mon, Feb 27, 2023, UTC

Open Source Evac4BIM Revit Add-In Developed at Lund University

Nazim Yakhou et. al. have published their paper titled 'The integration of building information modelling and fire evacuation models' via FEMTC which is freely available to read, watch, and ...

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Mon, Dec 12, 2022, UTC

Price Increase on January 10, 2023 for PyroSim & Pathfinder

Prices for all license types of PyroSim and Pathfinder are scheduled to increase on January 10, 2022. All quotes issued before this date will retain 2022 pricing throughout their normal 30-d ...

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Wed, Dec 7, 2022, UTC

2022.3 Version Updates - Available Now

The latest updates for PyroSim, Pathfinder and Results are available now. View our Release Notes to download and see the full details, or read on for a quick look at what's new.

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Tue, Dec 6, 2022, UTC

Occupants Easily File into Seating Rows in Pathfinder 2022.3

Occupants entering seating rows can now do so more realistically and without user complication. Seating models in stadiums, theaters, and railcars often make it difficult to adjust the seati ...

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Mon, Dec 5, 2022, UTC

Add Controls as Inputs to Other Controls in PyroSim 2022.3

In the upcoming PyroSim 2022.3 release, complex control systems can now be configured through the PyroSim Activation Controls dialog. A previously defined control is now included in the popu ...

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Thu, Nov 17, 2022, UTC

FEMTC 2022 Videos are Freely Available

Thunderhead Engineering recently hosted the sixth Fire and Evacuation Modeling Technical Conference, where over 35 presentations on the latest research, experiments, and case studies were de ...

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