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Stallion 3D with HIST Version 5.0

The Complete 3D CFD Software for the Aerodynamic Analysis of CAD Geometries.

CFD Software

Stallion 3D quickly and accurately predicts the aerodynamic performance of your designs using its proprietary CFD algorithm (HIST). The software imports your CAD models and generates the 3D aerodynamic data needed to verify your designs and ensure your success.

Subscribe for One Year ($3,495 US)

Lab & Class Packages

Perpetual License ($6,000** US)

**Special price ends September 21st, 2017 (save $2,000)

Stallion 3D 5.0 requires MS Windows 7, 8 or 10 (64 bit). The download file size is only 10 MB file.
Please call us at (352) 261-3376 for customer support.

Stallion 3D is your complete 3D Aerodynamics Solution

No need to purchase expensive add-ons for gridding or graphics.

Pre-processing (Built-in):

  • Stallion 3D inputs a STL file of your design
  • Grid generation is completely automatic (just click the menu)
  • Stallion 3D analyzes the actual geometry and you do not have to defeature your design.

CFD Solvers (Built-in)

  • Stallion 3D accurately solves the Reynolds Averaged Navier-Stokes Equations for air or water flows analysis
  • The k-epsilon turbulent model is used for realistic flow simulation at any angle of attack (0 to 360 degrees) and any cross flow angle (0 to 360 degrees)
  • Stallion 3D has a Laminar Navier-Stokes solver
  • Stallion 3D has a 3D Compressible Euler solver
  • The flow solver uses a 4-stage Runge-Kutta time marching scheme
  • A flux vector splitting scheme is used for shock capturing and to work out the domain of dependence
  • Actuator discs (up to 100) are used to model jet, prop wash and other propulsion effects (available in the RANS solver)
  • Quasi-steady surface rotations (in any direction and frequency) to compute stability derivatives and other special flow effects (e.g. a rotating sphere or cylinder).

Post Processing (Built-in).

  • Reports of CL, CD, CM, and related forces and moments coefficients in the coordinates directions
  • Reports of lift, drag, yaw, roll, pitch magnitudes and related forces and moments in the coordinates direction
  • Plots of pressure, Mach number, velocity, density and temperature on the STL surfaces as a contour color plot
  • Plots of pressure, Mach number, velocity, density and temperature at constant coordinate slices in the flow field
  • Plots of 2D line graphs of Cp, velocity, mach number, density and temperature at constant coordinates locations long the STL surface (for example, you can plot Cp (x) at any span location along the wing)
  • Graphs of streamlines (originating at any location in the flow) using arbitrary colors or using colors designated by the local flow pressure, velocity, density, temperature or Mach number

Even More Benefits!

  • SameDayCFD: Fast Multiple Core CFD Analysis on Your MS Windows Laptop or Desktop.
  • Install and Run Stallion 3D on Any of Your Computers Using the Same Password.
  • No Hidden Cloud Costs! All Computations are Performed & Stored on Your Computer.

Applications

The Stallion 3D 5.0 Work Flow: Setup in Seconds

STL file input. No Geometry De-featuring. No user grid generation!

Import the geometry

Set the flow conditions

Setup the CFD

Generate Grid/Solve Flow

Analysis of X-57 Maxwell using Stallion 3D

CAD geometry obtained from NASA's OpenVSP

Validation with Experiments

Revolutionary Algorithm, HIST, Computes Accurate Solutions

The DrivAer Experimental Model

The DrivAer experiment is a validation exercise for CFD solutions of passenger cars. The picture shows the flow velocity near the surface of the DrivAer model with mirrors and detailed under body. The problem was analyzed in Stallion 3D using 1.7 million cell and the RANS/k-epsilon solver. The solution was unsteady with an average drag coefficient of about 0.29.

DrivAer Model CFD Analysis

HL-20 Analysis

The results from Stallion 3D 5.0 RANS solver (CL = 0.41, CD = 0.25 & CM = -0.0387 ) were compared to the findings of NASA Technical Memorandum 4117,Transonic Aerodynamic Characteristics of a Proposed Assured Crew Return Capability (ACRC) Lifting-Body Configuration by George M. Ware. From the graphs, the corresponding experimental results were (CL = 0.48, CD = 0.24 & CM = -0.042). The geometry was obtained from NASA OpenVSP. The flow parameters for this case are M = 1.2 with an angle of attack of 12 degrees. This simulation used about 480,000 cells and ran for 3 hours on a 2 GHz laptop computer.

HL-20 CFD Analysis

ONERA M6 Wing

Stallion 3D used the August, 2016 implementation of its RANS/k-epsilon solver for this analysis the ONERA M-6 wing. The CAD model was obtained from NASA OpenVSP hangar. The simulation was setup for the well know case of M=0.84 and an angle of attack of 3.06 degrees. This case used a grid of 447,640 cells and ran for 6 hours on a 2 GHz laptop computer with 4 cores. The picture shows the pressure on the wing along with comparisons of the computed CP versus the experimental data at 2 stations along the wing. Since no experimental values of CL and CD were found, the lift and drag coefficients were compared to results from NASA's CFL3D (Spalart-Allmaras model).

NASA CFL3D

Stallion 3D

% Difference

CL 0.2754 0.275 0.145%
CD_SkinFriction 0.00567 0.00483 14.81%
CD_Pressure 0.01348 0.014 -3.858%
CD_Total 0.01914 0.0188 1.776%
ONERA M6 Wing CFD

Example Problems

Same Day Analysis

King Air Aerodynamics

King Air aerodynamics via Stallion 3D (pressure shown). The CAD is from Thingiverse.

Dolphin Aerodynamics

A comparison of the results (speed) of the compressible Euler vs. the RANS solvers. The CAD is from Thingiverse.

FSAE Care Aerodynamics

Stallion 3D is ideal for student projects. The FSAE student car aerodynamics (speed show) was performed within a few hours using Stallion 3D version 5. The CAD is from Thingiverse.

Airplane Aerodynamics

Cl vs AoA of a UAV via Stallion 3D (speed shown). Aircraft created using NASA's OpenVSP.

Race Car Wing Aerodynamics

Down force/drag comparison of multi-element wing configurations via Stallion 3D (speed shown). Geometry created within Stallion 3D.

F1 Front Wing Aerodynamics

Down force/drag on F1 frond wing configuration. The CAD is from GrabCAD.

Road vehicle CFD

Road vehicle CFD analysis via Stallion 3D (speed shown). The CAD is from Thingiverse.

Road vehicle CFD

Analysis (pressure shown) of NASA QueSST x-plane. The speed is 600 m/s at an angle of attack of 3 degrees. The CAD from NASA OpenVSP.

Stallion 3D Tutorials

Follow these instructions to get started in just minutes.

How to Analyze a Cessna 182

Cessna 182 CFD Analysis

Click here to learn the exact steps needed to analyze a Cessna 182 aircraft using Stallion 3D Version 4.0.

Analyze Race Car Wing

Wing Spoiler Analysis

Click here to watch the exact steps needed to design and analyze a rear wing spoiler for a sports car using Stallion 3D Version 4.0.

How to Analyze a BWB Aircraft

HL-20 CFD Analysis

Click here to learn the exact steps needed to analyze a blended wing body (BWB) using Stallion 3D Version 4.0.

Stallion 3D Customers

The following organizations use Stallion 3D for education, research & design.

Stallion 3D Subscriptions

Subscribe, download and run Stallion 3D. The file size is just 10 MB.

Stallion 3D 5.0 requires a MS Windows Laptop or workstation running the 64 bit versions of MS Windows 7, 8 or 10. A 4 core PC with a clock speed of at least 2 GHz is recommended for using the software.

The Stallion 3D 5.0 subscription includes full technical support by email, telephone or Skype.

Subscribe for One Year ($3,495 US)

Lab & Class Packages

Perpetual License ($6,000** US)

**Special price ends September 21st, 2017 (save $2,000)

Contact Us About Stallion 3D 5.0 With HIST

Email or telephone us with your questions or comments.

Email Us for More Information

Call us at (352) 261-3376

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