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What is GROMACS?

GROMACS is a powerful open-source software suite designed for high-performance molecular dynamics and output analysis. This versatile tool can simulate the Newtonian equations of motion for systems comprising anywhere from hundreds to millions of particles, with a strong focus on materials modeling, biomolecular simulations, and particle-based systems. While GROMACS is primarily tailored for biochemical molecules such as proteins, lipids, and nucleic acids—which often possess intricate bonded interactions—its exceptional speed in handling nonbonded interactions makes it advantageous for exploring non-biological systems, like polymers. The software adeptly models particle ensembles in a variety of states, including liquid, solid, and gas, and supports a wide range of molecular dynamics workflows, spanning from basic energy minimization and equilibration to comprehensive production simulations and trajectory analyses. As GROMACS develops, it continually integrates new features and improvements that expand its utility across various scientific fields, thereby enhancing researchers' ability to conduct complex simulations. This adaptability ensures that GROMACS remains a valuable resource for scientists exploring both biological and material systems.

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

GROMACS

Company Location

United States

Company Website

www.gromacs.org

Company Facts

Organization Name

NIST

Date Founded

1901

Company Location

United States

Company Website

pages.nist.gov/fds-smv/

Categories and Features

Categories and Features

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