12.3.1. Radial and Tangential Velocities

Try these first

1. 1.

   What is radial velocity?

   Hint

   Think about how fluid moves away from a source.

2. 2.

   Define tangential velocity.

   Hint

   Consider circular motion; how does the fluid move?

3. 3.

   What is the primary characteristic of radial velocity?

   • It moves outward
   • It moves inward
   • It is always zero

   Hint

   Think about how water sprays from a garden hose.

4. 4.

   True or False: In steady flow, acceleration can be influenced by time.

   • True
   • False

   Hint

   Reflect on what we know steady flow means.

5. 5.

   A fluid with an initial velocity of 12 ft/s enters a converging nozzle where the cross-sectional area is reduced. If the velocity at the exit is recorded as 36 ft/s, calculate the acceleration.

   Hint

   How can you break this down into simpler components?

6. 6.

   In a steady flow through a circular pipe, the diameter at entry is 2m, and at exit is 1m. If the fluid flows at 5 m/s at entrance, determine the exit velocity and acceleration.

   Hint

   Remember to consider area and how it relates to velocity changes!