⏳ Hourglass Sand Simulation: 2D Granular Flow and Janssen Pressure Lab

2D companion of the Hourglass Sand Simulation: a glass cross-section with Beverloo discharge, Janssen wall-friction pressure, funnel and angle-of-repose geometry and a Torricelli liquid comparison. Change orifice, grain size, friction and bulb shape and read the time to empty.

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install