Energy Head

Energy Grade Line

Hydraulic Grade Line

(water surface)

Channel Bottom

headloss

Elevation Head

Depth1

Datum

Depth2

Energy Head

-Elevation Head

-Velocity Head

-Total Head

Momentum

Open Channel

Velocity

head

Graphical depiction of elevation head, velocity head, and total head. Total head is the sum of velocity head, depth and elevation head.

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