All-in-one free open-source engineering design and simulation platform.
FWE lets you model, simulate, and iterate without ever leaving the app.
The simulation power already exists in open-source engines — FWE is the layer that finally makes them accessible and zero hassle for average user. No fragmented tools. No modular installs where half the physics are missing.
- Model any geometry — engines, speakers, rotors, airframes, anything
- Assign real material properties with validated physical data
- Simulate — fluid, thermal, structural, acoustic, electromagnetic, and more
- Iterate — checkpoints, overlays, live data, exportable results
Every simulation tool today is either locked behind expensive licenses, fragmented across five different programs, or requires a PhD to set up. The open-source engines that could do the job — OpenFOAM, FEniCS, CalculiX, OpenAL — are powerful but inaccessible to most engineers and builders.
FWE connects them into one coherent workflow. Same project file, same interface, physics that talk to each other.
| Principle | What It Means |
|---|---|
| One stop | Design and test in the same environment |
| Sub-main architecture | Each tab is its own subprocess — crash-isolated, memory-isolated |
| Node-as-initializer | Drop a node → backend spins up. Remove it → backend releases |
| Progressive disclosure | Simple on the surface, deep when you dig |
| Fast lane & Full lane | Model → Simulate for quick runs. Full pipeline for precision work |
| Everything ships complete | Simulation types are toggleable overlays, not separate installs |
| Layer | Technology |
|---|---|
| Geometry kernel | OpenCASCADE |
| Fluid / Aero | OpenFOAM + SU2 + Code Saturne |
| Structural / Thermal FEM | FEniCS / CalculiX / Sparselizard |
| Mechanical systems | OpenModelica |
| Mesh generation | Gmsh |
| Visualization | ParaView |
| Audio (3D spatial) | OpenAL Soft |
| HRTF calculation | Mesh2HRTF |
| Rendering | OpenGL |
| GPU — NVIDIA | CUDA |
| GPU — AMD | ROCm / HIP |
| GPU — fallback | OpenCL |
| Upscaling | DLSS / FSR / XeSS |
| Language | C++ core, Python scripting layer |
| UI | Dear ImGui + Qt |
| Build | CMake |
Flow-Works-Engine-FWE/ ← this repo (core application)
fwe-materials/ ← material data library (GPLv3)
fwe-environments/ ← environment presets
fwe-nodes/ ← community node contributions
fwe-speakers/ ← speaker model library
fwe-microphones/ ← microphone / HRTF profiles
v0.1.x Core → Model → Material → Simulate → File Formats → Export → Settings
v0.2.0 Fluid → Thermal → Mechanical → Acoustic → Lighting → Vibration
v0.3.0 Automotive → Marine → Aerospace → Drone / Small Systems
v0.4.0+ Advanced Materials → Ballistics → Instrument / VST pipeline
FWE core is GPLv3, free forever. A commercial API license exists for organizations that want to integrate the .fwe format into their own products or build private modules — that's what funds continued development. It's invisible to 99% of users.
| Tier | License |
|---|---|
| FWE core | GPLv3, free forever |
| Community modules | GPLv3, public |
| Private modules | Commercial API license |
| FWE API spec + verified data | Commercial bundle |
Individual users always work in the open .fwe format — no keys, no barriers, no lock-in.
FOR ALL FUTURE CONTRIBUTORS
⚠️ FWE is still a concept WITH ARCHITECTURAL DESIGN DOCS, please go to: https://github.com/FWE-R3nSoftOrg/FWEvision-direction for vision and direction and more structural details. This repo is the foundation being actively developed.
- CMake 3.20+
- C++17 compiler (GCC 11+ / Clang 13+ / MSVC 2022+)
- Python 3.10+
- OpenCASCADE 7.6+
git clone https://github.com/LazyR3nR3nOpenSoft/Flow-Works-Engine-FWE.git
cd Flow-Works-Engine-FWE
mkdir build && cd build
cmake ..
make -j$(nproc)FWE is community-built. The core is C++ but contributions are welcome across everything:
- C++ / simulation engineering — core architecture, sub-mains, solver integrations
- Python — scripting layer, materials pipeline, build tooling
- UI / UX — Dear ImGui, Qt
- Domain expertise — if you know acoustics, fluid dynamics, structural, thermodynamics, or any simulation domain deeply, that knowledge matters as much as the code
- Material data — validated property submissions to
fwe-materials - Node contributions — new node types submitted to
fwe-nodes
See CONTRIBUTING.md for guidelines.
#Support
If you want to support FWE, you can here:
FWE core is licensed under GNU General Public License v3.0.
See LICENSE for full terms.
Commercial API license available for integrators building on the .fwe format — see docs/commercial-license.md.
#Support
If you want to support FWE, you can here:
LazyR3nR3nOpenSoft