1. Water flows uniformly in a rectangular, concrete, open channel that is 10 m wide at adepth of 3 m. The channel slope is 0.0025. Using n = 0.013, find the velocity, flow rate,and the boundary shear stress.2. A trapezoidal canal has the following flow and channel properties: Discharge = 17 m3/s;mean velocity of flow = 80 cm/sec; roughness coefficient = 0.018; side slope = 4H:3V.Using the most efficient trapezoidal canal, what slope of channel is required?3. A flood occurs in a main channel having a trapezoidal section (side slope on both sides:2H to 1V) and base width of 12 m. The depth of flow in this section is 3.60 m and theflood spills out over an almost horizontal plane on one side of the channel. The width ofthe flood plain is 60 m with an overflow depth of 1 m. If n = 0.025 for the main channeland two times as large for the overflow section, estimate the discharge if the be slope forboth is 0.00030.4. Determine the critical slope for a rectangular smooth concrete flume (n = 0.013) 4.5 mwide which is to carry 4.5 m3/s per meter width of channel.

Solution:- Velocity and Discharge

1. Water flows uniformly in a rectangular, concrete, open channel that is 10m wide at a depth of 3 m. The channel slope is 0.0025. Using n = 0.013, find the velocity, flow rate, and the boundary shear stress. 2. A trapezoidal canal has the following flow and channel properties: Discharge = 17 m3/s; mean velocity of flow = 80 cm/sec; roughness coefficient = 0.018; side slope = 4H:3V. Using the most efficient trapezoidal canal, what slope of channel is required? %3D

1. Water flows uniformly in a rectangular, concrete, open channel that is 10m wide at a depth of 3 m. The channel slope is 0.0025. Using n = 0.013, find the velocity, flow rate, and the boundary shear stress. 2. A trapezoidal canal has the following flow and channel properties: Discharge = 17 m3/s; mean velocity of flow = 80 cm/sec; roughness coefficient = 0.018; side slope = 4H:3V. Using the most efficient trapezoidal canal, what slope of channel is required? %3D

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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