⛲ Castle Town Waterworks Lab: Gravity-Fed Fountain, Pipe Head Loss and Jet Height

A hilltop cistern feeds a market-square fountain and a watermill through a pipe. Raise the cistern, change pipe length, diameter, material and nozzle size, and see Torricelli speed, Darcy-Weisbach friction, jet height with air drag, low-pressure warnings, cistern draining and mill power, with six independent numerical checks.

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