🌀 Whirlpool Simulator 3D: Free-Surface Vortex, Rankine Core and the Drain Funnel

Unlike the existing whirlpool pages, this lab derives and checks the free-surface funnel itself: Rankine and Burgers vortex profiles, Torricelli drain coupling (core radius from strain), a Kelvin circulation loop and the Coriolis Rossby-number test, in a Blender-built acrylic tank or an ocean tidal cove with floating inanimate tracers and a toy boat.

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