OpenFOAM vs TransiFlow
OpenFOAM
openfoam.comTransiFlow
transiflow.readthedocs.ioSide by side
| Figure | OpenFOAM | TransiFlow |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 1 | 0 |
| Spec score · Physics Simulation Software | 8.7 (#5) | 7.5 (#55) |
| Delivery mode | desktop | desktop |
| Free plan | Yes | Yes |
| Intended users | OpenCFD describes its services for science and engineering companies, consultancies, and universities. | PyPI classifies the package for developers and science or research, and describes its topic as scientific and engineering software. |
| License | OpenFOAM is distributed under the GNU General Public Licence (GPL). | PyPI lists the package under Apache License 2.0. |
| Purpose | OpenFOAM is an open-source computational fluid dynamics toolbox for simulating fluid flow, heat transfer, and related physical processes. | TransiFlow is a Python package for analyzing transitions in fluid flows. |
| 3D visuals | Yes | Yes |
Plans
In their own words
OpenFOAM
OpenFOAM is a free, open-source computational fluid dynamics toolbox for simulating fluid flow, heat transfer, and related physical processes. It provides pre-processing, mesh generation, solvers for different flow and physics problems, and post-processing tools. Built-in utilities include blockMesh and snappyHexMesh, and it can convert meshes from external formats. ParaView visualization is supported through the paraFoam launcher, reader modules, VTK conversion, and VTK output during simulations. OpenFOAM runs on Linux, macOS, and Windows, and supports self-hosted use. Its current release is v2606, released on 26 June 2026; GPU offloading is available as a compile-time option, with that work on a separate development track. It is distributed under the GNU General Public Licence. OpenCFD offers a one-year support package for installation, fixes, updates, CFD assistance, and code customization, subject to a yearly service-hours maximum. It does not respond to support queries without a prior package. Training courses are also offered, with prices provided through a schedule or enquiry process.
TransiFlow
TransiFlow has no write-up on Specifiction yet; its figures are above.