⚽ Football Aerodynamics Lab: Knuckleball, the Drag Crisis and Panel Seams

Kick a Blender-modelled 32-panel ball in 3D and see why it swerves: the drag crisis (C_d falls from about 0.47 to 0.15-0.25 near Re 2-3e5, shifted by seam roughness), Magnus curl and the near-spin-free knuckleball side force. Unlike the existing soccer-kick and penalty Magnus labs it models C_d(Re), reverse Magnus and a seam-angle knuckle force, with Mexico City altitude, live graphs and four measured-vs-predicted experiments.

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install