See the air move.
A virtual wind tunnel that runs in real time on your GPU: draw or pick a shape, set the speed and Reynolds number, and watch the flow — with lift, drag and surface pressure computed live from a lattice-Boltzmann solver.
Free to test airfoils, cylinders, rockets and cars at 256×128, on the desktop or in your browser, no account needed. Pro and Premium are one-time purchases that work in both.
Grid 1024 × 512 · GPU
C_L / C_D 0.82 / 0.031
u 1.31 U∞ · v −0.04 U∞
Cp −0.92 · vorticity +3.8
Real fluid dynamics, while you watch.
A solver you can see
Lattice-Boltzmann (D2Q9) on the GPU through WebGL 2, with a CPU fallback: speed, vorticity, pressure and density fields, streamlines, tracer particles and velocity vectors in real time.
Any shape
NACA 4-digit airfoils at any angle of attack, cylinders, plates, rockets and cars — or draw your own polygon, import an SVG, or load an STL for the 3D solver.
Numbers, not just pictures
Lift and drag coefficients from momentum exchange, Cp around the body, a probe for any point, convergence indicators and the limits of each number explained.
Sweeps
Angle-of-attack and Reynolds sweeps that produce lift and drag polars with tables, charts and CSV export; batch queues with Premium.
Higher Reynolds numbers
A Smagorinsky LES sub-grid model and ultra-resolution grids up to 2048 × 1024 for flows the basic solver cannot hold stable.
3D when you need it
A coarse D3Q19 three-dimensional solver for extruded wings and STL bodies, with slice planes and iso-speed particles.
Validated, and clear about its limits.
The app ships with a validation page: cylinder drag against reference values across Reynolds numbers, Poiseuille flow against the analytic profile, NACA 0012 lift slopes. It also explains what a 2D lattice solver cannot do — compressibility, full turbulence, high Mach — so you know when to reach for a bigger tool.
Every formula, in the app
D2Q9 BGK f_i(x+c_i, t+1) = f_i − (f_i − f_i^eq)/τ ν = (τ − 0.5)/3 (lattice units) Re = U L / ν τ > 0.5 enforced Forces momentum exchange on bounce-back links C_L, C_D F / (½ ρ U² L_ref) running average
Pay once. Keep it forever.
Every licence is perpetual and includes a year of updates. Nothing phones home — the app works fully offline.
Free
For curiosity and the classroom.
- Real-time 2D solver at 256 × 128
- Airfoil, cylinder, plate, rocket and car presets
- Draw your own polygon
- Speed, vorticity, pressure fields, streamlines, particles
- Live lift and drag
Pro Most popular
For engineers and students.
- Grids up to 1024 × 512
- SVG shape import and several bodies
- Angle-of-attack and Reynolds sweeps with polars
- Cp plots, CSV export and screenshots
- Probe and ruler tools
Premium
For analysts and teams.
- Everything in Pro
- Ultra resolution up to 2048 × 1024
- Smagorinsky LES turbulence model
- 3D solver with STL import
- Batch queues, field export and video
Your Andromeda Flow order
Find your purchases and original keys in your account. Sign in with the email used at checkout.
Checking payment and licence delivery…
Open Andromeda Flow, click the edition badge (top right) or Help → Licence, paste the key and click Activate. The key is checked offline. Keep a copy of the key and your Stripe receipt.
Prices in EUR. Any applicable tax is shown at checkout.
| Free | Pro | Premium | |
|---|---|---|---|
| Real-time 2D lattice-Boltzmann solver, GPU or CPU | ✓ | ✓ | ✓ |
| Shape presets and polygon editor | ✓ | ✓ | ✓ |
| Fields, streamlines, particles, live lift and drag | ✓ | ✓ | ✓ |
| High resolution, SVG import, several bodies | – | ✓ | ✓ |
| Sweeps, polars, Cp plots, CSV export, screenshots | – | ✓ | ✓ |
| Ultra resolution and LES turbulence model | – | – | ✓ |
| 3D solver, STL import, batch queues, field export, video | – | – | ✓ |
Install Andromeda Flow
One installer for every edition — your licence key unlocks Pro or Premium. The GPU solver needs WebGL 2 with floating-point textures (any graphics card or integrated GPU from the last decade); otherwise the CPU solver runs at lower resolution. Prefer not to install? The same wind tunnel runs in your browser.
Checking for the latest tested release…
Windows
Windows 10 or 11 · x64 · .exe installer
Windows download unavailableRun the setup file. It adds Andromeda Flow to the Start menu and desktop. Uninstalling keeps your settings and licence.
Browser
Any modern browser with WebGL 2 · nothing to install
Open Flow in your browserThe free edition opens straight away. Pro and Premium unlock automatically when you sign in with the 14d.space account you bought with, or when you paste your licence key.
Download SHA256 checksums · Verify the file before running it.
Before you install
Is this real CFD?
It is a real fluid solver — the lattice-Boltzmann method is used in research and industry — running in two dimensions at modest Reynolds numbers in real time. It is excellent for understanding flows, comparing shapes and teaching; it is not a substitute for a validated 3D RANS or LES study of a final design. The validation page shows where it agrees with reference data.
Does it need an internet connection?
No. Everything runs locally. The desktop app only goes online to check 14d.space for updates.
Can I use Andromeda Flow without installing it?
Yes — open it in your browser. It is the same wind tunnel with the same editions: Free needs no account; Pro and Premium unlock when you sign in with your 14d.space account or paste your licence key, which stays in that browser.
How do updates work?
Andromeda Flow checks 14d.space for a newer verified release shortly after it starts and every four hours, and installs it when you close the app (Windows) or the next time you open it (Linux). Only packages signed by 14d.space are accepted.
What happens after the update year?
Your licence keeps working forever with every release from your update year.