2.2. Internal Flow and External Flow

Try these first

1. 1.

   What type of flow occurs when viscous forces are significant?

   Hint

   Think about forces that create resistance.

2. 2.

   Define external flow.

   Hint

   Consider flow that isn't contained.

3. 3.

   What type of flow is characterized by smooth and orderly movements?

   • Turbulent Flow
   • Laminar Flow
   • Transitional Flow

   Hint

   Picture smooth river currents.

4. 4.

   True or False: Compressible flow occurs when density does not change significantly.

   • True
   • False

   Hint

   Consider what happens at high speeds.

5. 5.

   Describe an engineering application where understanding compressible flow is crucial, and explain why density changes matter.

   Hint

   Think about aircraft speeds relation to speed of sound.

6. 6.

   Given a flowing river, analyze the conditions that would classify it as turbulent, and what changes could lead it to become laminar.

   Hint

   Think about the flow's environment and speed.