Question

Assume an earth channel on a grade of 0.15% with the depth of water as 0.9 m, bottom
width as 60 cm and side slopes 1.5:1. Calculate the velocity of flow and carrying capacity
of the channel. The Manning’s roughness coefficient is 0.035.

Answer 1

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$\bold{Explanation:}$

Normal depth is the depth of flow in a channel or culvert when the slope of the water surface and channel bottom is the same and the water depth remains constant. Normal depth occurs when gravitational force of the water is equal to the friction drag along the culvert and there is no acceleration of flow.

Answer 2

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Normal depth is the depth of flow in a channel or culvert when the slope of the water surface and channel bottom is the same and the water depth remains constant. Normal depth occurs when gravitational force of the water is equal to the friction drag along the culvert and there is no acceleration of flow.

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