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2 cards from this section. Quick, good the night before a test.
Explain what surface roughness is in fluid flow.
Think about how surfaces can vary in texture.
What is the formula for hydraulic diameter?
Remember the components of hydraulic diameter.
What determines whether the flow is laminar or turbulent?
This number provides insight into the flow characteristics.
True or False: Roughness only affects laminar flow.
Consider how flow changes with texture.
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.
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.
Refer to the critical Reynolds number to classify flow type.
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