Saturday, December 31, 2016

Racing with Multiple Wings




The picture above shows a wing that I created using the built-in wing editor that comes with Stallion 3D.  The main wing is Selig S1223 airfoils while the remaining two airfoils are a NACA 4512 and a NACA 0012.  Since the wing is finite (2 meters in span with a 0.75 m chord), it produces less lift and more drag than is predicted by airfoil (2D) theory.  Accurate 3D predictions enables you to size engines/motors, fuel tanks and predict weight, range and endurance even before the vehicle is built.


Do you have the power to race with 3 Wings?


With more down force, you can corner faster and win races.  But what about power vs. drag on the straightaways?  Stallion 3D will  give you the wing arrangement to win every race. Find out the perfect wing settings to race on hot days, cold ones, wet ones and in windy weather.





Designing and analyzing 3D multi-element wings in Stallion 3D is exactly the same as in 3DFoil.  Stallion 3D has the identical wing creation tool that is available in MSA-3DFoil.  The big difference is that Stallion 3D analyzes the wing using the 3D Reynolds Averaged Navier-Stokes (RANS) equations and this enables you to predict lift, drag and down force for your multi-element designs with variable thickness, rotations and gaps for your race.  The following video show how to create and analyze a wing using the wing tool and the RANS solver.


Of course Stallion 3D can also import and analyze a CAD file in STL format created in any CAD software such as AutoCAD or Solidworks.  The software performs automatic grid generation directly on your CAD model.  It runs on your MS Windows (7,8 or 10) laptop or desktop computer.

More information can be found at http://www.hanleyinnovations.com. Thanks for reading.

About Patrick Hanley, Ph.D.
Dr. Patrick Hanley is the owner of Hanley Innovations. He received his Ph.D. degree in fluid dynamics for Massachusetts Institute of Technology (MIT) department of Aeronautics and Astronautics (Course XVI). Dr. Hanley is the author of Stallion 3D, MultiSurface Aerodynamics, MultiElement Airfoils, VisualFoil and the booklet Aerodynamics in Plain English.

Aerodynamics of a Cessna 182



The following tutorial is a step-by-step guide on how to analyze a Cessna 182 using Stallion 3D.  The procedure can be applied to any light aircraft design.  The analysis starts with a CAD model that is imported into the software.  Stallion 3D is unique because the grid generation step is automatic.  The software then solves the Reynolds Averaged Navier-Stokes equations to generate the lift, drag and moment coefficients.  The procedure can be used to generate a Cl vs. Angle of Attack, Cl vs Cd and power vs. speed charts for your aircraft.

Stallion 3D analyzes the aircraft at any angle of attack and computes lift, pressure drag, friction drag and moments (pitch, roll and yaw about a datum point).

To read the tutorial, please visit: http://www.hanleyinnovations.com/cessna182/index.html

Do not hesitate to contact me if you have any questions.

About Patrick Hanley, Ph.D.
Dr. Patrick Hanley is the owner of Hanley Innovations. He received his Ph.D. degree in fluid dynamics for Massachusetts Institute of Technology (MIT) department of Aeronautics and Astronautics (Course XVI). Dr. Hanley is the author of Stallion 3D, MultiSurface Aerodynamics, MultiElement Airfoils, VisualFoil and the booklet Aerodynamics in Plain English.

Friday, December 30, 2016

Happy 2017

Happy New Year, 2017

I wish you a happy new year and continued success in 2017.


The picture above was created from a CAD file on Thingiverse.com (the 2017 model).  The wings and engine were added using NASA OpenVSP.

The simulation was performed using Stallion 3D version 4.0.  The speed is 600 m/s and the angle of attack is 3 degrees.  900,000+ cells were used in the simulation.  The Stallion 3D simulation took about 7 hours on a 2 GHz laptop computer running under Windows 10.

More information about Stallion 3D can be found at: http://www.hanleyinnovations.com/stallion3d.html

Do not hesitate to email us at sale@hanleyinnovations.com or call (352) 261-3376 if you have any questions.

Thanks for reading - Patrick Hanley, Ph.D.
http://www.hanleyinnovations.com