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What is LIGGGHTS?

LIGGGHTS is a free, open-source software designed for simulating materials made up of particles, utilizing the Discrete Element Method, with a strong focus on applications involving industrial granules and thermal dynamics. The software derives its name from its relationship with LAMMPS, as it has been specifically enhanced to optimize simulations related to a wide range of granular materials and their thermal behaviors, thus extending the capabilities of DEM into more practical industrial applications. This simulation tool excels at modeling diverse systems where the interactions, collisions, friction, cohesion, thermal transfer, and dynamics of individual particles play a crucial role in the overall behavior of materials. It is particularly valuable for investigating various applications such as powders, grains, bulk solids, particulate flows, packed beds, conveyor systems, mixing processes, hopper discharges, and material handling, especially in scenarios where particle-level behaviors are critical. LIGGGHTS has gained widespread acceptance among numerous research facilities and commercial organizations worldwide, appreciated for its open-source accessibility and flexibility in simulating particulate materials. Additionally, this software's adaptability and user-friendly nature make it an indispensable resource for advancing research and innovation across multiple domains related to granular systems, fostering further developments in the field.

What is Fire Dynamics Simulator (FDS)?

The Fire Dynamics Simulator (FDS) is an open-source tool designed for simulating and visualizing fire-influenced flow dynamics. This computational fluid dynamics software adeptly resolves a modified version of the Navier–Stokes equations specifically aimed at low-velocity, thermally-driven airflow, with an emphasis on the movement of smoke and heat generated by fires. By utilizing large-eddy simulation techniques, it effectively captures the complexities of fire-plume behavior and is applicable to a variety of situations, including those involving wind effects, sprinkler systems, ventilation strategies, and different materials that influence fire characteristics. Users can define their scenarios through text-based input files, perform simulations with FDS, and analyze the resulting data afterward. The software provides visual outputs from both FDS and CFAST simulations using sophisticated OpenGL-powered 3D graphics, which include scientific visualization methods like animated smoke patterns, tracer particle animations, and two- and three-dimensional shaded surfaces, along with iso-surfaces, temperature gradients, and flow vector displays indicating both movement direction and strength. Moreover, FDS undergoes regular updates to improve its usability and features, ensuring it remains an essential resource for both researchers and fire safety experts. As a result, its continuous development further solidifies its significance in enhancing fire safety and understanding fire dynamics.

Media

Media

Integrations Supported

FireFlow Studio for FDS
OpenGL

Integrations Supported

FireFlow Studio for FDS
OpenGL

API Availability

Has API

API Availability

Has API

Pricing Information

Free
Free Version
Free Trial Offered?

Pricing Information

Free
Free Version
Free Trial Offered?

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

CFDEM

Company Location

Germany

Company Website

www.cfdem.com/liggghts-open-source-discrete-element-method-particle-simulation-code

Company Facts

Organization Name

NIST

Date Founded

1901

Company Location

United States

Company Website

pages.nist.gov/fds-smv/

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