3. Boundary Layer Separation

Try these first

1. 1.

   What happens to fluid flow when there is a boundary layer separation?

   Hint

   Consider how velocity changes near the surface.

2. 2.

   Define favorable pressure gradient.

   Hint

   Think about how it affects flow attachment.

3. 3.

   What is the effect of adverse pressure gradients on boundary layers?

   • Increase flow attachment
   • Promote separation
   • No effect

   Hint

   Think about how pressure affects flow direction.

4. 4.

   True or False: A boundary layer only forms in laminar flow.

   • True
   • False

   Hint

   Consider different flow scenarios.

5. 5.

   Given a laminar flow scenario with a cylinder, predict the effect of increasing the diameter on boundary layer separation, explaining the underlying fluid dynamics.

   Hint

   How does diameter influence flow and pressure around an object?

6. 6.

   Design a theoretical model for an aerodynamics application avoiding boundary layer separation. Describe the flow regime and pressure profiles expected.

   Hint

   Consider how different shapes impact the airflow and separation.