Practice Flow Over A Smooth Flat Plate (2.2) - Boundary Layer Theory (Contd.,)

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8 questions

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Exercise
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6 sample questions

Question 1.
Define displacement thickness.
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Think about the role of viscosity in fluid flow.
Question 2.
What does momentum thickness represent?
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Consider how momentum is affected by changes in velocity.
3Question 3.
What is the definition of displacement thickness?
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Consider what role viscous forces play.
4Question 4.
True or False: Momentum thickness quantifies energy savings in the boundary layer.
- True
- False
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Remember the definitions of both thicknesses.
Question 5.
Calculate the energy thickness given a velocity profile of u / U = y/δ for a boundary layer thickness of δ = 0.1 m.
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Integrate the kinetic energy lost over the thickness.
Question 6.
Explain the significance of each thickness when designing a flat plate in fluid systems.
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Think of engineering applications like airplane wings and turbines and how they utilize flow properties.

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