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Flow Nets

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Question

The number of flow channels and head drops is 4 and 12 respectively. If the difference in the up-stream and down-stream water levels is 3 m, what is the discharge per meter width of a sheet pile, if k = 0.1 m/s .

0.1

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Solution

The correct option is A 0.1
Given.

$N_{f} = 4$ ; $N_{d} = 12$

$H_{L} = 3 m; K = 0.1 m / s$

Discharge per meter width of sheet pile wall,

$q = K H_{L} \frac{N_{f}}{N_{d}}$

$= 0.1 \times 3 \times \frac{4}{12}$

$q = 0.1 \frac{m^{3}}{s} / m$

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