Practice Understanding Vortex Formations (19.6.1)

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9 questions

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6 sample questions

Question 1.
What is the significance of the Reynolds number?
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Think about how it relates to flow patterns.
Question 2.
Define laminar flow.
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Consider how the fluid moves.
3Question 3.
What does the Reynolds number indicate?
- Flow direction
- Flow type
- Pipe length
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Think about what characteristics it measures.
4Question 4.
True or False: Vortex formations can lead to energy losses in fluid systems.
- True
- False
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Consider why engineers try to avoid vortices.
Question 5.
A pipe system experiences a transition from laminar to turbulent flow at a Reynolds number of 2500. How might the design of the system need to change to minimize energy losses?
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Consider the characteristics of laminar versus turbulent flow.
Question 6.
Calculate the energy loss in a pipe fitting where the velocity of water is increased, causing vortex formation. Given the initial velocity as 2 m/s and the new velocity as 5 m/s, how do the energy losses compare?
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Use the principle of kinetic energy change!

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