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Problem 4. A drainage channel (n = 0.018) has a bottom width of 5 ft and side slopes of m = 2. The flow is 65.0 cfs and the slope is 0.0025. a. Calculate normal depth for the channel. b. Calculate the Froude Number. Is the flow subcritical or supercritical?

Problem 4. A drainage channel (n = 0.018) has a bottom width of 5 ft and side slopes of m = 2. The flow is 65.0 cfs and the slope is 0.0025. a. Calculate normal depth for the channel. b. Calculate the Froude Number. Is the flow subcritical or supercritical?

Principles of Geotechnical Engineering (MindTap Course List)
Principles of Geotechnical Engineering (MindTap Course List)
9th Edition
ISBN:9781305970939
Author:Braja M. Das, Khaled Sobhan
Publisher:Braja M. Das, Khaled Sobhan
Chapter8: Seepage
Section: Chapter Questions
Problem 8.11P
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Problem 4. A drainage channel (n = 0.018) has a bottom width of 5 ft and side slopes of m = 2. The flow is 65.0 cfs and the slope is 0.0025. a. Calculate normal depth for the channel. b. Calculate the Froude Number. Is the flow subcritical or supercritical?
Transcribed Image Text:Problem 4. A drainage channel (n = 0.018) has a bottom width of 5 ft and side slopes of m = 2. The flow is 65.0 cfs and the slope is 0.0025. a. Calculate normal depth for the channel. b. Calculate the Froude Number. Is the flow subcritical or supercritical?
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