🌪 Dust Devil Desert — 2D Burgers Vortex, Pressure Drop and Dust Pickup

2D companion of the dust devil desert: a Burgers vortex with circulation, core radius and inflow, the swirl-speed and pressure-deficit profiles, a Bagnold-type grain pickup threshold and the dust column built by the updraft, checked against exact vortex integrals.

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