Thunderhead

Thunderhead Engineering develops software, with particular expertise in developing intuitive GUI for engineering applications, PyroSim, Pathfinder and PetraSim.

[Thunderhead @thunderheadeng]

Generate rooms, doors, and stairs directly from imported BIM and CAD geometry in Pathfinder.

🔗 https://t.co/Ce3qYmVbq3

#pathfinder #bim #evacuationmodeling

[Thunderhead @thunderheadeng]

Research into contaminant transport, particle modeling, and Indoor Air Quality analysis continues to expand through Ventus workflows.

Featured at IAQVEC 2026.

Learn more:
https://t.co/EJ6v4CQhuH

#indoorairquality #airflowmodeling #ventus

[Thunderhead @thunderheadeng]

Non-commercial licenses are available for academic and review workflows.

Academic licenses support students, instructors, and institutions. AHJ and Reviewer licenses support project review processes.

🔗 https://t.co/412UNYf2Sq

#firesimulation #egressmodeling

[Thunderhead @thunderheadeng]

Pathfinder supports detailed evacuation analysis with agent-based models.
Used for scenario testing, validation, and research.

High-level users share real-world applications and insights.
Watch here: https://t.co/CkWbhJPVo3

#pathfinder #egressmodeling #firesafety

[Thunderhead @thunderheadeng]

Quickly define floors by selecting geometry and using “Add Floor to Fit Objects.”

PyroSim calculates elevation and wall height based on the selected objects, helping you organize multi-level models and apply clipping more efficiently.

#pyrosim #bimworkflow #engineering

[Thunderhead @thunderheadeng]

Ventus includes built-in error and warning checks.

Issues are identified directly in the model, helping you locate and resolve problems during setup.

Learn more: https://t.co/GKjFYLfEJE

#ventus #fireengineering #simulation

[Thunderhead @thunderheadeng]

Advanced Pathfinder features continue to evolve.

Assisted Evacuation is supported by updated documentation to help you build and refine your models.

https://t.co/0K1dzsGnvO

#pathfinder #egressmodeling #firesafety

[Thunderhead @thunderheadeng]

Mesh Refinement Zones increase resolution in targeted areas of your model.

This allows for more detailed results where needed, without increasing overall cell count.

https://t.co/VjNYXT4KZr

#pyrosim #firesimulation #bimworkflow

[Thunderhead @thunderheadeng]

Select and filter flow paths in Ventus.

Group by connections like shafts or stairwells, or filter by values to focus on relevant data.

Learn more: https://t.co/ToegIQFhzX

#ventus #fireengineering #simulation

[Thunderhead @thunderheadeng]

Pathfinding verified with IMO 10.

Green shows current seek curves. Red shows future paths and waypoints.

Learn more: https://t.co/80zJ2ZwCtk

#pathfinder #engineering

[Thunderhead @thunderheadeng]

Ventus keeps a full history of your edits, so you can quickly undo, redo, and refine your workflow.

Helpful for collaboration and iteration, especially when testing changes in complex models.

#ventus #hvacdesign #engineering

[Thunderhead @thunderheadeng]

Most fire models require multiple scenarios.

PyroSim lets you manage them in a single file by enabling or disabling objects as needed.

Less duplication. Easier updates. More efficient simulations.

https://t.co/mvZF41BD4z

#pyrosim #firesimulation #engineeringworkflow #bim

[Thunderhead @thunderheadeng]

Use queues to move occupants through unassigned seating or event layouts.

This makes it easier to model realistic movement patterns over time, especially in large or dynamic spaces.

#pathfinder #crowdsimulation #engineering

[Thunderhead @thunderheadeng]

Use Filter View to isolate parts of your model and troubleshoot more efficiently.

https://t.co/mvZF41BD4z

#pyrosim #firesimulation #bimworkflow

[Thunderhead @thunderheadeng]

The updated ordering page makes it easier to view pricing and generate quotes.

https://t.co/eW14p4uoRq

#pyrosim #pathfinder #ventus

[Thunderhead @thunderheadeng]

Create occupant targets from CSV-generated occupants to model assigned seating faster.

Ideal for large populations and reducing manual setup.

Learn more: https://t.co/0RVa86VzQ1

#pathfinder #crowdmodeling #firesafety #bim

[Thunderhead @thunderheadeng]

Object tags help you organize and find related elements across your model.

You can group unrelated objects, select them quickly, and manage edits more efficiently.

#pyrosim #firesimulation #bim #engineeringworkflow

[Thunderhead @thunderheadeng]

Use Level Working Z to adjust floor position and control level clipping.

This makes it easier to work with vertical geometry and review elevation changes in context.

#ventus #hvac #engineeringtools

[Thunderhead @thunderheadeng]

Triggers add behavior based on location.

They help model how occupants respond to their environment.

Learn more: https://t.co/sEy7MMYEiU

#pathfinder #crowdsimulation #engineering

[Thunderhead @thunderheadeng]

Auto Expand Selection reveals selected objects in the navigation panel.

This helps locate elements quickly in large models.

#pyrosim #bimworkflow