Stallion 3D: CFD for Aerodynamics
Accelerate aerodynamics analysis with high-fidelity CFD. Automatic grid generation enables consistent aerodynamic design tradeoffs.
Stallion 3D solves the compressible Navier-Stokes equations for subsonic, transonic, and supersonic flow. It is built for practical aerodynamic analysis without complex setup. Import your STL geometry, generate the grid automatically, run the solution, and review forces, moments, and flowfield results. Stallion 3D gives engineers accessible 3D CFD for real design work all on MS Windows laptops and workstations.
Setup in seconds
STL file input. No geometry clean-up. No user grid generation.
Import geometry
Bring in your STL from OpenVSP or CAD.
Set conditions
Speed, AoA, sideslip, altitude — and propulsion options.
Auto grid
Generate the volume grid automatically for repeatable trades.
Solve & review
Watch convergence and inspect results while it runs.
From STL to insight in a single afternoon
Quick‑start tutorials to simulate aircraft, UAVs, rockets & more.
What you get with Stallion 3D
Same‑day aerodynamics insight from the geometry you already have.
- Import STL geometry from OpenVSP or your favorite CAD tool
- Automatic grid generation (repeatable across design iterations)
- Ideal for aircraft, UAVs, rockets, hydrofoils, and complex configurations
- CL, CD, CM and full force/moment breakdown for all 3 axes
- Stability‑relevant quantities to support operating decisions
- Pressure/Mach/velocity/temperature visualizations for reports
- 3D compressible RANS across subsonic, transonic & supersonic regimes
- k‑epsilon turbulence model (AoA 0–360°, crossflow 0–360°)
- Flux vector splitting for sharp shock capture
- Actuator discs (up to 100) for prop wash effects (RANS solver)
- Quasi‑steady surface rotation to compute stability derivatives
- Streamlines and slice plots with user‑controlled visualization
Real‑world validation
HIST (proprietary) + RANS/k‑epsilon for credible engineering results.
Passenger car drag
DrivAer with mirrors and detailed underbody. Stallion 3D used a ~1.7M cell RANS/k‑epsilon setup; unsteady solution with average drag coefficient near 0.29.
Supersonic lifting body
HL‑20 at M=1.2, AoA=12°: results compared to NASA TM 4117. Example case ran ~3 hours on a 2 GHz laptop (about 480k cells).
Transonic wing
ONERA M‑6 wing at M=0.84, AoA=3.06°. Comparisons shown against published data and NASA CFL3D reference results.
Who uses Stallion 3D?
From startups to classrooms to established R&D teams.
- UAV & eVTOL startups needing credible aero data without a full CFD department
- Aircraft & rocket designers iterating on concepts before committing to big campaigns
- Universities & educators giving students hands‑on 3D RANS CFD on classroom PCs
- Consultants & small teams who want full‑body CFD with predictable local compute
About
Dr. Patrick Hanley is the owner of Hanley Innovations. He received his Ph.D. degree in fluid dynamics from Massachusetts Institute of Technology (MIT) department of Aeronautics and Astronautics (Course XVI). Read more ..
Products
3DFoil
MultiElement Airfoils
MultiSurface Aerodynamics
Stallion 3D
VisualFoil
VisualFoil PLUS
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