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:
- Free Vortex Flow and
- Forced Vortex Flow
Free Vortex FlowWhen no external torque is required to rotate the fluid mass that type of flow is called free vortex flow.
- 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 FlowForced vortex flow is defined as that type of vortex flow in which some external torque is required to rotate the fluid mass.
- 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