Tuesday, December 30, 2014

Free and Forced Vortex flow with Examples

Vortex flow is defined as the flow of a fluid along a curved path or the flow of a rotating mass of fluid is known as Vortex flow. The following are the two types of Vortex flow:
  1. Free Vortex Flow and
  2. Forced Vortex Flow 

Free Vortex Flow

When no external torque is required to rotate the fluid mass that type of flow is called free vortex flow.
Examples:
  • Flow of liquid through a hole provided at the bottom of the container
  • Flow through kitchen sink
  • Draining the bath tub
  • Flow of liquid around a circular bend in pipe
  • A whirlpool in a river
  • The flow fields due to a tornado.

Forced Vortex Flow

Forced vortex flow is defined as that type of vortex flow in which some external torque is required to rotate the fluid mass.
Examples:
  • Flow of water through the runner of a turbine
  • Flow of liquid through the passage of impeller of centrifugal pumps
  • Rotation of water in a washing machine

13 comments:

  1. This comment has been removed by the author.

    ReplyDelete
  2. Very helpful. Simple and clear. Cheers!

    ReplyDelete
  3. Wonderful.i like it,,,helpful

    ReplyDelete
  4. Good content, I trust this is a good weblog about Wish to see refreshing content material next time. Thanks for sharing this publish with us.Battery Operated Ultrasonic Level Sensor

    ReplyDelete
  5. why free vortex flow is irrotational?

    ReplyDelete