13.4. Computational Fluid Dynamics Techniques

Try these first

1. 1.

   Define boundary layer.

   Hint

   Think about the layer close to the surface.

2. 2.

   What is displacement thickness?

   Hint

   It's related to how much the flow is affected near the surface.

3. 3.

   What is the primary function of the boundary layer?

   • To increase drag
   • To allow for the development of turbulence
   • To reduce the velocity of the flow near a surface
   • To create laminar flow conditions

   Hint

   Think of how fluids behave near surfaces.

4. 4.

   True or False: Displacement thickness accounts for the outer streamline shift due to the boundary layer effect.

   • True
   • False

   Hint

   Consider what happens to streamlines near a wall.

5. 5.

   Calculate the velocity profile and displacement thickness for a fluid flowing over a flat plate with known parameters.

   Hint

   Set up your equations based on earlier discussions about flow and displacement.

6. 6.

   Discuss the implications of turbulent boundary layers versus laminar layers in engineering designs.

   Hint

   Think about how real-world applications account for these differences.