12.1.1. Velocity Distributions

Try these first

1. 1.

   Briefly explain what velocity distribution is.

   Hint

   Consider how speed can differ along a nozzle.

2. 2.

   What does steady flow mean?

   Hint

   Recall the consistency of flow parameters.

3. 3.

   What is velocity distribution?

   • The variation of pressure in a fluid
   • The variation of fluid velocity at different points
   • The thickness of a fluid layer

   Hint

   Think about how speed can change in a narrowing space.

4. 4.

   In steady flow, can the velocity at a point change over time?

   • True
   • False

   Hint

   Consider the definition of steady flow.

5. 5.

   A fluid flows through a nozzle with varying cross-sectional areas. If the entrance velocity is 15 ft/s, what will be the acceleration at the exit if the exit velocity is 45 ft/s?

   Hint

   Refer to your formulas for accelerations.

6. 6.

   Analyze how the introduction of turbulence would affect our calculations of velocity and acceleration in a steady flow.

   Hint

   Think about chaotic flow patterns.