Chézy formula

Chézy formula

[′shā·zē ‚fȯr·myə·lə]
(fluid mechanics)
For the velocity V of open-channel flow which is steady and uniform, V = √(8 g/f) · √(mS), where f is the Darcy-Weisbach friction coefficient, m the hydraulic radius, S the energy dissipation per unit length, and g the acceleration of gravity.