Find the new dimensions and increase in discharge.

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Find the new dimensions and increase in discharge.

written 6.3 years ago by

mitali.poojari1908 • 400

modified 2.4 years ago by

Krishna_Agrawal • 2.7k

A rectangular channel 4m wide has depth of water1.5m. The slope of the bed of channel is 1 in 1000. C=55. It is desired to increase the discharge keeping i & C constant.Find the new dimensions and increase in discharge.

applied hydraulics

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written 2.4 years ago by

Krishna_Agrawal • 2.7k

Given,

b = 4m
d = 1.5m
i = ${1 \over1000}$
C = 55

$i.e. Area = b * d = 4 * 1.5 = 6m^2$

$ Wetted$ $ Perimeter, P = d + b + D = 1.5 + 4 + 1.5 = 7m$

$ m = {A \over …

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