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4 cards from this section. Quick, good the night before a test.
What is a vortex?
Think about how tornadoes or whirlpools work.
What is the significance of the Reynolds number?
Remember the thresholds: Laminar is below 2300, turbulent is above 4000.
What is the Reynolds number threshold for laminar flow?
It's one of those key thresholds!
True or False: Minor losses occur due to friction along the length of the pipe.
Consider fittings like bends.
Given a pipe with a Reynolds number of 3500, determine whether the flow is laminar, turbulent, or transitional. Describe the implications of this in terms of energy losses.
Look at the thresholds discussed for Reynolds numbers.
A water flow system experiences higher energy losses at fittings. If minor losses due to bends are quantified to K=0.5, and the velocity is 2 m/s, calculate the head loss at a bend using the formula h = K * (v^2)/(2g).
Break it down, substituting the values one at a time.
7 more questions in this section. Enroll free to practise them all.
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