9.2.6. Summary

Try these first

1. 1.

   What is vorticity?

   Hint

   Think about fluid movement.

2. 2.

   Define translation in fluid motion.

   Hint

   Focus on movement direction.

3. 3.

   What is vorticity?

   • A measure of fluid temperature
   • A measure of fluid rotation
   • A measure of fluid density

   Hint

   Think about swirling motions.

4. 4.

   True or False: Translation refers to the rotation of a fluid particle.

   • True
   • False

   Hint

   Recall the meaning of translation.

5. 5.

   Consider a fluid flowing through a pipe that narrows from a diameter of 2m to 1m. Calculate the flow velocity increase assuming incompressible flow.

   Hint

   Relate cross-sectional areas to flow rates.

6. 6.

   Derive the expression for angular velocity in fluid elements experiencing vorticity.

   Hint

   Remember the definition of vorticity!