Hydraulic depth can be defined as the cross-sectional area of flow divided by the top width of surface.
Hydraulic depth is a very crucial parameter in calculations dealing with fluid mechanics and flow in open channels.
The formula for computing hydraulic depth is:
R = A / T
R = Hydraulic Depth
A = Cross-sectional Area of Flow
T = Top Width or Top Surface Water Width
Find the hydraulic depth of flow in an open channel where the cross-sectional area is 120 m2 and the top width is 12 m.
From the example we can see that the cross-sectional area is 120 m2 and the top width is 12 m.
R = 120 / 12
R = 10
Therefore, the hydraulic depth is 10 m.
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