An unsymmetrical trapezoidal channel with one side inclined from horizontal by 35° and the other inclined from vertical by 40° is to be designed to carry a 2.0 cubic meters per second discharge. Determine the dimensions of the channel for most efficient section if roughness coefficient is 0.030 and average longitudinal slope is 0.05. Draw the cross section of the open channel considering the freeboard height. Use Chezy and Kutter's C formula

An unsymmetrical trapezoidal channel with one side inclined from horizontal by 35° and the other inclined from vertical by 40° is to be designed to carry a 2.0 cubic meters per second discharge. Determine the dimensions of the channel for most efficient section if roughness coefficient is 0.030 and average longitudinal slope is 0.05. Draw the cross section of the open channel considering the freeboard height. Use Chezy and Kutter's C formula

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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Concept explainers

Open Channel Flow

Open channel flow is a branch of fluid mechanics. It deals with the flow of fluid in an open conduit or free surface. In an open channel flow, gravity induces the flow of water whose surface is open to the air. This flow is free-falling rather than confined in rigid body conduits. The open channel flow depends upon two parameters that are the cross-section of the conduit and the velocity profile. Practical examples of open channel flow are streams, rivers, canals, and other drainage systems.In open channel flow, the cross-sectional area of at least one of the sides is exposed to air, and the surface of water faces atmospheric pressure. This flow is also known as free gravity flow. The cross-sectional area of the conduit can be either man-made or a natural channel. For instance, the flow in rivers and streams are natural conduits, and the flow in a canal and sanitary systems are man-made or engineered channels.

Question

2. An unsymmetrical trapezoidal channel with one side inclined from horizontal by 35°
and the other inclined from vertical by 40° is to be designed to carry a 2.0 cubic meters
per second discharge. Determine the dimensions of the channel for most efficient
section if roughness coefficient is 0.030 and average longitudinal slope is 0.05. Draw
the cross section of the open channel considering the freeboard height. Use Chezy
and Kutter's C formula.

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