Practice Non-zero Vorticity (2.2) - Boundary Layer Transition - Hydraulic Engineering

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9 questions

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3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is the transition zone in fluid flow?
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Think about the relationship with the Reynolds number.
Question 2.
Define laminar sub-layer.
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Where do we assume constant shear stress?
3Question 3.
What happens to the Reynolds number as fluid moves downstream?
- It increases
- It decreases
- It remains constant
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Think about how speed influences flow characteristics.
4Question 4.
True or False: The velocity profile in the laminar sub-layer is assumed to be linear.
- True
- False
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Consider the definition of the laminar sub-layer.
Question 5.
Explain how the transition from laminar to turbulent flow affects energy losses in a piping system.
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Think about how many variables are in play during transitions between flow types.
Question 6.
Calculate the displacement thickness for a flow with a known velocity profile across a flat plate.
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Remember the definitions of thickness and how they relate to flow velocity and area.

5 more questions in this section. Enroll free to practise them all.