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(a) The figure below shows a cross-section of a canal, which is to carry 44 m3/sec. The canal is lined with concrete, for which the manning coefficient is 0.014. (i) Calculate the longitudinal bed slope of this canal. (ii) If the flow in the canal were to decrease to 22 m3/sec and all other data including the slope and n being the same, what would be the water depth? 15.1 m- 1.5:1 3.0 m 1.5:1 5.41 m 6.1 m

(a) The figure below shows a cross-section of a canal, which is to carry 44 m3/sec. The canal is lined with concrete, for which the manning coefficient is 0.014. (i) Calculate the longitudinal bed slope of this canal. (ii) If the flow in the canal were to decrease to 22 m3/sec and all other data including the slope and n being the same, what would be the water depth? 15.1 m- 1.5:1 3.0 m 1.5:1 5.41 m 6.1 m

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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(a) The figure below shows a cross-section of a canal, which is to carry 44 m3/sec. The canal is lined with concrete, for which the manning coefficient is 0.014. (i) Calculate the longitudinal bed slope of this canal. (ii) If the flow in the canal were to decrease to 22 m3/sec and all other data including the slope and n being the same, what would be the water depth? 15.1 m- 3.0m 1.5 5.41 m (b) A vertical sluice gate with an opening of 0.67 m produces a downstream jet with a depth of 0.4 m when installed along a rectangular channel, 0.5 m wide, conveying a steady discharge of 20 m³/sec. It is assumed that the flow downstream of the gate eventually returns to a uniform flow depth of 2.5 m. (i) Calculate the energy-head loss in the jump. (ii) What are the conjugate depths of this hydraulic jump (initial and sequent depths). (c) Identify and sketch the Gradually Varied Flow (GVF) profile in three slopes which could be described as mild, critical, and milder respectively. The three slopes are in series.
Transcribed Image Text:(a) The figure below shows a cross-section of a canal, which is to carry 44 m3/sec. The canal is lined with concrete, for which the manning coefficient is 0.014. (i) Calculate the longitudinal bed slope of this canal. (ii) If the flow in the canal were to decrease to 22 m3/sec and all other data including the slope and n being the same, what would be the water depth? 15.1 m- 3.0m 1.5 5.41 m (b) A vertical sluice gate with an opening of 0.67 m produces a downstream jet with a depth of 0.4 m when installed along a rectangular channel, 0.5 m wide, conveying a steady discharge of 20 m³/sec. It is assumed that the flow downstream of the gate eventually returns to a uniform flow depth of 2.5 m. (i) Calculate the energy-head loss in the jump. (ii) What are the conjugate depths of this hydraulic jump (initial and sequent depths). (c) Identify and sketch the Gradually Varied Flow (GVF) profile in three slopes which could be described as mild, critical, and milder respectively. The three slopes are in series.
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