CPU Computer Simulators vs OpenFOAM
CPU Computer Simulators
physport.org
OpenFOAM
openfoam.comSide by side
| Figure | CPU Computer Simulators | OpenFOAM |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | — | Yes |
| Self-hosted | — | Yes |
| Plans published | 2 | 1 |
| Spec score · Physics Simulation Software | 7.7 (#44) | 8.7 (#5) |
| Delivery mode | desktop | desktop |
| Free plan | Yes | Yes |
| Privacy | PhysPort says it may be used without personal information and that identifiable information is not otherwise disclosed to third parties unless required by law. | OpenCFD says personal data is kept on its or a supplier’s server with precautions against fraudulent access and is not stored longer than necessary. |
| Purpose | CPU Computer Simulators is a suite of computer simulations for teaching physics and physical science. | OpenFOAM is an open-source computational fluid dynamics toolbox for simulating fluid flow, heat transfer, and related physical processes. |
| Support | PhysPort provides no guarantees or support for this software. | OpenCFD offers a one-year support package covering installation, bug fixes, updates, CFD assistance, and code customisation, with a maximum number of service hours per year. |
Plans
In their own words
CPU Computer Simulators
CPU Computer Simulators has no write-up on Specifiction yet; its figures are above.
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.