Hydraulic Jump · Fr = U / √(gh)
unseel.com · thin fast sheet · glowing jump ring · thick slow flow
Inner Fr₁
Depth ratio h₂/h₁
phase
Supercritical sheet (Fr > 1)
The jump ring (Fr → 1)
Subcritical flow (Fr < 1)
Falling jet
Unseel.com · Hydraulic Jump