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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.

What is EasyCFD?

EasyCFD is a user-friendly desktop application tailored for computational fluid dynamics (CFD), seamlessly combining geometry preparation, mesh generation, simulation, and post-processing in a single graphical interface. It supports modeling for two-dimensional and axisymmetric fluid flows as well as heat transfer, and it can handle both structured and unstructured meshes for steady-state and transient simulations. The application enables users to analyze a variety of phenomena, including laminar and turbulent flows, conduction, conjugate heat transfer, scalar transport, multicomponent flows, and interactions with both isotropic and anisotropic porous media. For turbulence modeling, EasyCFD provides several approaches such as Standard k-ε, RNG k-ε, Realizable k-ε, SST k-ω, Spalart–Allmaras, and Transition k–kL–ω. Visualization of results is facilitated through tools like contours, vectors, streamlines, XY plots, and statistical evaluations. With a primary focus on education and learning in CFD, EasyCFD also proves to be a significant asset for research and early-stage engineering assessments. The official website offers a wealth of resources, including detailed examples, instructional video tutorials, a thorough user manual, and validation documentation to support users in their endeavors. Furthermore, a fully functional trial version is available for a duration of 20 days, allowing prospective users to explore its features. In summary, EasyCFD stands out as a comprehensive platform that benefits both beginners and seasoned professionals in the realm of computational fluid dynamics, facilitating a deeper understanding of fluid behavior and engineering applications.

Media

Media

No images available

Integrations Supported

FireFlow Studio for FDS
OpenGL

Integrations Supported

API Availability

API Availability

Pricing Information

Free
Free Version

Pricing Information

129€ / year
Free Trial Offered?

Supported Platforms

Windows

Supported Platforms

Windows

Customer Service / Support

Web-Based Support

Customer Service / Support

Web-Based Support

Training Options

Documentation Hub

Training Options

Documentation Hub

Company Facts

Organization Name

NIST

Date Founded

1901

Company Location

United States

Company Website

pages.nist.gov/fds-smv/

Company Facts

Organization Name

EasyCFD

Date Founded

2009

Company Location

Portugal

Company Website

www.easycfd.net

Categories and Features

Categories and Features

CFD

Not specified

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