DualSPHysics
DualSPHysics: A focused free-surface SPH solver with CPU and CUDA GPU builds and included workflow tools. Ranked #18 of 22 in CFD software by our editors (7.5/10); pricing: Free plan; best for free-surface flow users seeking SPH on CPU or GPU.
At a glance
- Editor score7.5 / 10
- PricingFree plan
- Best forFree-surface flow users seeking SPH on CPU or GPU
- Free planYes
- Paid fromFree
- DeploymentDesktop
- Facts checked24 Sep 2026
Where it wins
- CPU and CUDA GPU builds support different compute paths.
- GenCase prepares simulation cases; examples and input files are included.
- Post-processing tools are included with the solver package.
Where it doesn't
- The solver focuses on free-surface SPH rather than broad CFD workflows.
- Desktop builds are listed for Windows and GNU/Linux.
- Documentation is the listed support channel.
Our verdict on DualSPHysics
DualSPHysics is an open-source Smoothed Particle Hydrodynamics solver for studying free-surface flow phenomena, including waves and dam-break impacts on offshore structures. It is aimed at engineering simulation users working with flows where Eulerian methods can be difficult to apply. The project provides solver code and a downloadable package with examples, documentation, preprocessing and post-processing tools. Its defined scope makes it most relevant to people specifically seeking an SPH approach, rather than a general-purpose CFD environment.
The workflow includes GenCase for preparing simulation cases, along with example cases and input files to support case preparation. CPU and CUDA GPU builds are available, and the project describes Windows and GNU/Linux build paths. GNU/Linux compilation uses Makefile or CMake, while Windows compilation uses Visual Studio project files. These components give users solver, preparation and post-processing tools in one project, though the provided scope remains centered on free-surface SPH rather than a wider collection of simulation capabilities.
DualSPHysics is open source under the GNU Lesser General Public License and has a free plan. It is a desktop product for Windows and GNU/Linux, with documentation as its listed support channel. That combination may suit solo users through enterprise teams who can work within the solver's focus and documented build paths. Choose it for free-surface SPH with CPU or CUDA GPU options; consider another CFD product if your work requires a broader solver scope or a different operating system. The published product details also identify GDPR compliance.
Your product? Our editors can test DualSPHysics in depth and publish a review, labelled as paid · from $149/mo →
DualSPHysics pricing
DualSPHysics fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Deployment | Desktop |
| Multiphysics solver | Not verified |
| Built-in meshing | Not verified |
| CAD import | Not verified |
| Parallel cores | Not verified |
| Operating systems | Windows, GNU/Linux |
| Deployment | Desktop |
| Platforms | Windows, Linux |
| Compliance & security | GDPR |
| Support | Docs |
| Built for | Solo, Small business, Mid-market, Enterprise (editorial estimate) |
| Pricing | Free plan |
| Website | dual.sphysics.org |
| Facts checked | 24 Sep 2026 |
Alternatives to DualSPHysics
- Ansys FluentA broad engineering CFD suite with automated meshing, GPU/HPC solving, and Ansys integrations.9.3
- SimScaleBrowser-based CFD with CAD preparation, cloud computing, APIs, and a free entry plan.9.1
- COMSOL MultiphysicsCFD modeling in a desktop environment built for coupled physics and broader engineering simulation.9.0
See all DualSPHysics alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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