A horizontal rectangular channel has a discharge per unit channel width of 8.0 m2 /s. In a hydraulic jump occurring in this channel the depth before and after the jump are 0.50 m and 4.75 m respectively. Calculate the energy loss in the jump.

Energy loss ΔE = 8.08  (Approx)

Explanation:

Given:

Channel width = 8 m/s²

Before jump a1 = 0.50 m

After jump a2 = 4.75 m

Find:

Energy loss ΔE

Computation:

Energy loss ΔE = (a2 - a1)³ / 4a1a2

Energy loss ΔE = (4.75 - 0.50)³ / 4(4.75)(0.50)

Energy loss ΔE = 76.7656 / 9.5

Energy loss ΔE = 8.08  (Approx)

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