Bend it like Stallion 3D. FIFA Inspired Aerodynamics Simulation ⚽🥅

 

A soccer ball was simulated in Stallion 3D at 67 mph (30 m/s) with 600 rpm (10 Hz) of spin to examine the Magnus effect responsible for a bending free kick.

The  Stallion 3D simulation predicted the following forces:
• Side Force: 5.72 N (1.29 lb)
• Total Drag: 5.70 N (1.28 lb)
• Lift: −0.333 N

The streamlines, in the attached side-view picture, show the wake generated by the spinning ball, producing the lateral force that curves the trajectory.  Although simple in appearance, predicting this behavior requires resolving the interaction between boundary-layer separation, rotation, and wake development around the ball.  Similar dynamic inputs into Stallion 3D are often used to accurately compute dynamic and damping derivatives for airplane, UAVs and eVTOLS stability and control. 

Sometimes CFD predicts an aircraft. Sometimes it predicts a free kick.

Learn more ➡️ https://www.hanleyinnovations.com

eVTOL Aerodynamics: Use Stallion 3D for Early eVTOL Concept Analysis. Compute lift, drag, moments and ideal power

This is a Stallion 3D near-hover simulation of the NASA RAVEN SWFT, a 1,000 lb eVTOL concept, at 7 m/s forward speed. The model includes six lifting rotors with pressure plotted on the aircraft surfaces and actuator disks. The pressure scale shown is approximately 100,950 to 101,450 Pa.

The computed surface forces are: lift = -86.31 N (-19.40 lbs), side force = -3.08 N (-0.693 lbs), pressure drag = 57.65 N (12.96 lbs), friction drag = 4.65 N (1.04 lbs), and total drag = 62.30 N (14.01 lbs). The related force components are FX = 57.65 N, FY = -3.08 N, and FZ = -86.31 N. The moments about the reference CG are pitch = 175.38 N-m, roll = -1.23 N-m, and yaw = -9.74 N-m.

The ideal rotor power from the six disks is 7,059.38 W, 7,065.66 W, 6,310.21 W, 6,314.22 W, 10,189.09 W, and 10,231.14 W, for a total ideal power of 47,169.70 W. This is a simple near-hover CFD check, but it shows the type of integrated aircraft, rotor, pressure, force, moment, and power information that can be reviewed directly inside Stallion 3D.

Performing early 3D aerodynamics analysis using accurate and accessible software ensures stable first flights. 

Please use the link be low to learn more about Stallion 3D.

➡️ https://www.hanleyinnovations.com 

Learn the Background Story about my CFD and Aerodynamic Software Business

 

I recently had the chance to talk with Roopinder at ENGtechnica on YouTube about aerodynamics, CFD, and some of the practical work behind Hanley Innovations.

The discussion is a good plain-English overview of how I think about simulation, aircraft design, and engineering software. It is a technical conversation about real aerodynamics, useful calculations, and the role of CFD in understanding what an aircraft actually sees.

Please let me know if you have any questions. 

To learn more about Hanley Innovations please visit https://www.hanleyinnovations.com.

Best regards,

Patrick.