Practice Total Reduction In Mass Flux (2.4) - Boundary Layer Theory (Contd.,)

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8 questions

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Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
2 questions · about 1 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
Define displacement thickness.
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Think about how flowing fluid interacts with a surface.
Question 2.
What is momentum thickness?
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It relates to how viscous forces affect momentum.
3Question 3.
What does the displacement thickness represent?
- Distance fluid is displaced away from the wall
- Loss of kinetic energy
- Increase in flow velocity
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Think about how flowing near surfaces alters the flow structure.
4Question 4.
True or False: The momentum thickness considers increases in the kinetic energy of fluid.
- True
- False
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Recall the function of momentum versus kinetic energy.
Question 5.
Given a velocity profile of u/U = 4y/delta, calculate both the displacement thickness and momentum thickness over a flat plate.
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Pay attention to how the velocity profile affects integrals.
Question 6.
How would an increase in viscosity affect the displacement thickness in boundary layer flow?
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Think about the effects of increased internal friction on flow behavior.

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