2. A 1.50 m diameter circular channel flowing at maximum velocity is to be replaced by a trapezoidal channel of the most efficient section with one side slope at 2V:3H and the other at 4V:3H. The two channels have the same longitudinal slopes of 0.010 and the same roughness coefficient, n = 0.030. Determine the dimensions of the trapezoidal channel using Manning's equation.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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Solve the following problems, with precise supplementary figures
2. A 1.50 m diameter circular channel flowing
at maximum velocity is to be replaced by a
trapezoidal channel of the most efficient
section with one side slope at 2V:3H and the
other at 4V:3H. The two channels have the
same longitudinal slopes of 0.010 and the
same roughness coefficient, n = 0.030.
Determine the dimensions of the trapezoidal
channel using Manning's equation.
Transcribed Image Text:2. A 1.50 m diameter circular channel flowing at maximum velocity is to be replaced by a trapezoidal channel of the most efficient section with one side slope at 2V:3H and the other at 4V:3H. The two channels have the same longitudinal slopes of 0.010 and the same roughness coefficient, n = 0.030. Determine the dimensions of the trapezoidal channel using Manning's equation.
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