2.3 - Problem 2: Gradually varied flow profile
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Practice Questions
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What is the formula for calculating discharge in a rectangular channel?
💡 Hint: Think of how area is calculated in terms of width and depth.
Define critical depth in your own words.
💡 Hint: Consider how energy relates to flowing water.
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Interactive Quizzes
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What does \( rac{dy}{dx}\) signify?
💡 Hint: Consider what is being measured in a flowing stream.
True or False: A steep slope will always produce a gradually varied flow.
💡 Hint: Reflect on different flow conditions.
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Challenge Problems
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A rectangular channel has a width of 5m and a depth of 1.2m with a discharge of 2m³/s. Calculate the normal depth using Manning's equation with n = 0.015.
💡 Hint: Remember that for a rectangular channel, A = b * y, and R can be related to A and wetted perimeter.
Describe the physical significance of \( rac{dy}{dx}\) being much less than 1.
💡 Hint: Think about flow profiles and their relationship to water depth.
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