Practice Lecture-17 (1.1) - Boundary Layer Theory - Hydraulic Engineering

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6 sample questions

Question 1.
What is the no-slip condition?
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Think about surfaces where fluid and solids meet.
Question 2.
What is the boundary layer?
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Consider where velocity changes occur next to a solid surface.
3Question 3.
What is the velocity at the boundary of a stationary plate under no-slip condition?
- Free-stream velocity
- Half the free-stream velocity
- Zero velocity
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Consider fluid particles at rest.
4Question 4.
The outer flow region is characterized by:
- True
- False
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Think about the effects of friction.
Question 5.
Calculate the boundary layer thickness at 2 meters from the leading edge of a flat plate with a free stream velocity of 1.5 m/s and a kinematic viscosity of 1x10^-6 m²/s.
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Use the formula for boundary layer thickness.
Question 6.
Discuss how different fluid viscosities would affect the development of the boundary layer over the same plate.
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Consider the relationship between viscosity and flow characteristics.

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