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2 cards from this section. Quick, good the night before a test.
What is the friction factor and why is it important?
Think about its role in flow and pressure drop.
Define the term Reynolds number.
It determines the flow regime.
What is the main purpose of the friction factor in pipe flow?
Focus on its role in hydraulic engineering.
True or False: Minor losses have a greater impact on total head losses than major losses.
Consider the relative significance of each loss type.
A water pipe with a diameter of 0.1m and length of 50m has a roughness height of 0.005m. If the velocity of water is 1.5 m/s, calculate the friction factor and the head loss using the Darcy-Weisbach equation.
You need to check if the flow is laminar or turbulent first!
Design a piping system to limit head loss to 5m for a flow of 75 liters per minute over a 100m length pipe. If the roughness is 0.01m, calculate the appropriate diameter of the pipe.
Use Q = A * V to relate the diameter to the flow.
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