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Discharge formula for a trapezoidal channel 09

Discharge formula for a trapezoidal channel

Question 2

Show that the discharge formula for a trapezoidal channel, having Manning’s coefficient n = 0.0126 and carrying maximum flow is given by where Q is discharge in m3 /s; y is depth of flow in m in the channel of side slopes 1 vertical to z horizontal and S0 is the bed slope of the channel.

Solution

Discharge formula for a trapezoidal channel

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