Thunderhead Engineering PyroSim 2024.2 (1209)

Thunderhead Engineering Consultants, Inc. has released PyroSim 2024.2 (1209). This release enhances the ability to use devices with activation logic as inputs for other controls.


PyroSim Controls as Inputs to Controls and Improved Statistics Devices
Previous versions of PyroSim allowed the use of devices with setpoints or devices that had some inherent activation logic (ex. smoke/beam/heat detectors, etc.), as inputs to Controls within the PyroSim UI. This functionality as been expanded to also allow for controls to be used as inputs to other controls. This improvement to the UI will make it easier to create more deeply nested control patterns, where hundreds or thousands of devices can be used to bubble up activation state to a single control output. The primary use case for nested controls are situations where there is a need to detect activation in a large network of sensors. FDS currently has a limit of 40 inputs to a single control. To sense the state of more than 40, groups of devices are assigned to different controls. The output of those controls can now be inputs to higher level controls and so on until all devices in the system are accounted for and at the top of the hierarchy the user can use that single control output for activation/deactivation of things like exhaust/supply vents, HVAC dampers, fans, etc.





Within the context of improved devices and controls, the 'Statistics' device UI has been changed to allow for new independent devices to include statistical output data. In past versions of PyroSim there was an effort to simplify the input process and make a single statistics object create multiple FDS devices for various statistical quantities by clicking checkboxes for the desired output. While this could save a little time creating devices, it did not allow for the flexibility that many users required. In addition, there wasn't a way to use a setpoint on a statistics device for use in activation logic or controls. This release of PyroSim resolves both of those issues by allowing statistics devices to be defined like any other independent device, with additional options for temporal and spatial outputs for the device quantity.



Read about these new features on the 2024.2 PyroSim Release Notes page.


- Fixed a bug that could cause a crash when using multiple Activation Controls containing the same logic.

PyroSim is a graphical user interface for the Fire Dynamics Simulator (FDS), is a powerful fire simulator which was developed at the National Institute of Standards and Technology (NIST). FDS simulates fire scenarios using computational fluid dynamics (CFD) optimized for low-speed, thermally-driven flow. FDS models can predict smoke, temperature, carbon monoxide, and other substances during fires. The results of these simulations are used to ensure the safety of buildings before construction, evaluate safety options of existing buildings, reconstruct fires for post-accident investigation, and assist in firefighter training. The PyroSim interface provides immediate input feedback and ensures the correct format for the FDS input file.

PyroSim


Videos related to the fire modeling program PyroSim, developed by Thunderhead Engineering. Built around the Fire Dynamics Simulator (FDS) engine developed by the National Institute of Standards
Thunderhead Engineering Consultants, Inc. develops software, with particular expertise in building intuitive graphical interfaces for specialized engineering and graphics applications that have powerful physics models but are difficult to use. Thunderhead Engineering is dedicated to providing powerful visualization and modeling capability to practicing engineers and technicians. Thunderhead Engineering is located in Manhattan, KS, also known as "The Little Apple" and home of Kansas State University.

Owner: Thunderhead Engineering Consultants, Inc.
Product Name: PyroSim
Version: 2024.2 (1209)
Supported Architectures: x64
Website Home Page : www.thunderheadeng.com
Languages Supported: english
System Requirements: Windows *
Size: 507.2 mb