Water flows steadily in a 1.4-m-wide rectangular channel at a rate of 0.7 m3/s. If the flow depth is 0.40 m, determine the flow velocity and if the flow is subcritical or supercritical. Also determine the alternate flow depth if the character of flow were to change.

Water flows steadily in a 1.4-m-wide rectangular channel at a rate of 0.7 m3/s. If the flow depth is 0.40 m, determine the flow velocity and if the flow is subcritical or supercritical. Also determine the alternate flow depth if the character of flow were to change.

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter16: Highway Drainage

Section: Chapter Questions

Problem 16P

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Concept explainers

Highway Drainage

Highway drainage is the process of extracting and regulating the excess surface water on the pavement by giving the desired slope. The construction of a highway drain helps to divert the water present on the surface, and sub-grade by the means of slope. Highway drainage systems are a necessary part of smooth functioning of traffic, since the highway drainage systems provide proper disposal of unwanted substances from the highways.

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Step 1 Interpretation of data:

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Step 2 Calculation to obtain flow velocity

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Step 3 Calculation to find whether the flow is subcritical or supercritical

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Step 4 Calculation for alternate flow depth if the character flow were to change

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