1.1. Lecture-17

Try these first

1. 1.

   What is the no-slip condition?

   Hint

   Think about surfaces where fluid and solids meet.

2. 2.

   What is the boundary layer?

   Hint

   Consider where velocity changes occur next to a solid surface.

3. 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

   Hint

   Consider fluid particles at rest.

4. 4.

   The outer flow region is characterized by:

   • True
   • False

   Hint

   Think about the effects of friction.

5. 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.

   Hint

   Use the formula for boundary layer thickness.

6. 6.

   Discuss how different fluid viscosities would affect the development of the boundary layer over the same plate.

   Hint

   Consider the relationship between viscosity and flow characteristics.