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FEST-3D vs OPEM

FEST-3D

fest3d.github.io

OPEM

ecsim.site

Side by side

FigureFEST-3DOPEM
Price fromFreeFree
Free planYesYes
Free trial——
Open source——
Web—Yes
Windows—Yes
macOSYes—
LinuxYesYes
API—Yes
Plans published11
Spec score · Physics Simulation Software8.6 (#11)7.7 (#45)
Delivery modedesktopdesktop
Intended usersThe project describes its team as students from the Department of Aerospace Engineering at IIT Madras, and its tutorials are provided for learning and verification.ECSIM describes its software as open-source simulation tools for applied electrochemistry researchers, including people working with fuel cells.
Offline accessYesYes
PurposeFEST-3D is a Fortran 90 finite-volume solver for Navier–Stokes equations on structured grids, developed for aerodynamic flow problems.OPEM models and evaluates proton-exchange membrane fuel-cell performance using static and dynamic models.
SupportThe homepage lists [email protected] as the project contact email.The README directs users to file an issue or email [email protected] for bug reports, and mentions a Discord server.

Plans

FEST-3D

  • Free and open sourceFree

FEST-3D pricing →

OPEM

  • OPEMFree

OPEM pricing →

In their own words

FEST-3D

FEST-3D is a Fortran 90 finite-volume computational fluid dynamics solver for Navier–Stokes flow problems on structured grids, developed for aerodynamics. It handles incompressible and compressible flows, including inviscid, laminar, transitional and turbulent cases. Users can select among flux schemes, reconstruction methods, time-integration options, turbulence models and transition models. MPI distributes computations across processors on one or more machines. The solver is free and open source under the GNU General Public License version 3.0, with source available from GitHub. Its installation script supports Ubuntu/Debian, CentOS and macOS, while manual installation instructions cover Linux. Building requires a Fortran compiler, an MPI library, CMake and Make. Tutorials in a separate repository address verification cases such as a smooth bump, lid-driven cavity, flat plates and an airfoil. FEST-3D writes VTK or Tecplot output for separate visualization tools. Grid generation and post-processing are outside the solver, and the project notes its halt/stop condition does not work with MPI.

Visit fest3d.github.io

OPEM

OPEM has no write-up on Specifiction yet; its figures are above.

Visit ecsim.site