22.4.2 - Roughness Effects in Pipe Flow
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Practice Questions
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Explain what surface roughness is in fluid flow.
💡 Hint: Think about how surfaces can vary in texture.
What is the formula for hydraulic diameter?
💡 Hint: Remember the components of hydraulic diameter.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What determines whether the flow is laminar or turbulent?
💡 Hint: This number provides insight into the flow characteristics.
True or False: Roughness only affects laminar flow.
💡 Hint: Consider how flow changes with texture.
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Challenge Problems
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A pipe has a diameter of 0.5 m and a roughness height of 0.01 m. Calculate the friction factor for turbulent flow using entries from Moody's diagram.
💡 Hint: Consider the flow implications at this scale.
A square duct of side length 1 m has a flow of water with a Reynolds number of 5000. Determine whether the flow is laminar or turbulent and calculate the hydraulic diameter.
💡 Hint: Refer to the critical Reynolds number to classify flow type.
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