In-browser geometry viewer
Upload STL, OBJ, STEP, IGES, GLB, or FBX files and inspect them in a WebGL viewer with orbit, wireframe, transparent, bounding-box, and measurement modes.
Ventorah
Ventorah is a browser-based CFD tool for running virtual wind tunnel simulations on 3D models. It helps aerospace, automotive, and drone users inspect flow fields, coefficients, and comparison results without installing local software.
Browser CFD for virtual wind tunnel analysis
Ventorah is a browser-based CFD product for running virtual wind tunnel analysis on 3D models. It is positioned for aerospace, automotive, and drone aerodynamics, and the site says you can upload models, set flow conditions, and watch the simulation update in real time without installing software or using a license server.
The workflow covers geometry upload, flow setup, solving, and reporting. Ventorah says it supports common CAD and mesh formats, uses an OpenFOAM backend, and provides coefficients, charts, flow-field visualizations, and exportable reports for review and comparison.
Core capabilities
Full flow setup
Configure wind speed, direction, density, temperature, pressure, humidity, altitude, fluid choice, turbulence model, and mesh resolution before launching a solve.
Live CFD visualization
Run a virtual wind tunnel that shows streamlines, velocity vectors, pressure and velocity contours, vorticity, wake, and flow separation while the solver iterates.
Engineering results and export
Read engineering outputs such as Cl, Cd, Cm, Reynolds, Mach, forces, centre of pressure, and surface maps, then export results to CSV or PDF.
Run comparison tools
Compare two runs side by side, overlay pressure and airflow, and review a difference table for performance changes.
AI-assisted analysis
Ask the AI aero assistant questions about drag, lift, and flow separation; the site says these AI features use Claude.
Common workflows
Aerospace and drone aerodynamic studies
Upload a wing, fuselage section, drone frame, or other geometry, then run a virtual wind-tunnel study to inspect lift, drag, and pressure distribution.
Design iteration and comparison
Set up speed, direction, and ambient conditions, then compare alternative body shapes or surface changes to see how the flow field changes.
Reporting and review
Use the coefficient outputs, surface maps, and charts to document a run and share CSV or PDF results with teammates or stakeholders.
Evaluating the platform before upgrading
Try an initial simulation with the free demo runs before deciding whether you need saved simulations, your own API key, or managed compute.
Pros and Cons
Pros
- Runs in the browser with no installation or license server mentioned.
- Supports a broad set of import formats including STL, OBJ, STEP, IGES, GLB, and FBX.
- Covers the full study flow from setup and solving to charts, coefficient readouts, and CSV/PDF export.
- Includes side-by-side run comparison and an AI aero assistant for follow-up questions.
- The privacy policy says analytics are opt-in and that account owners can delete stored data themselves.
Cons
- Pricing details are limited on the public site, and the pricing page path returns a 404.
- The AI features rely on Anthropic's Claude API, so BYO usage requires adding an external API key.
FAQ
Is there a free way to try Ventorah?
Yes. The site says new accounts include 5 free demo simulations and no card is required to start.
What file types can I upload?
Ventorah can import STL, OBJ, STEP, IGES, GLB, and FBX files, then display them in an in-browser WebGL viewer before running a solve.
What happens after the free demo runs?
The site says you can save results, compare runs, and optimize designs on paid plans. Free demo runs are provided for initial testing, while BYO and Pro options are listed for more advanced use.
How is my simulation data handled?
The privacy policy says account data, uploaded models, simulations, and results are kept while your account exists, and you can delete your account from the dashboard to remove stored content.
Do I need to connect an Anthropic API key for AI features?
Ventorah says AI features use Anthropic's Claude API. On BYO plans, you can connect your own Anthropic API key in Dashboard → Settings so AI features run on your key.
Quick Facts
- Category
- Browser CFD
- Platform
- Web browser
- Primary use
- Virtual wind tunnel analysis on 3D models
- Supported inputs
- STL, OBJ, STEP, IGES, GLB, FBX
- Backend
- OpenFOAM
- Website
- ventorah.com
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