Question

When a fluid flows in concentric circles it is known as?

Answer 1

Answer:

Concept of Circulation in a Free Vortex Flow. Free Vortex Flow. Fluid particles move in circles about a point. ...

Answer 2

Free cylindrical vortex flow

Step-by-step explanation:

• A flow of fluid mass is called as free vortex flow when no external torque is required to rotate the fluid mass.
• Example:
• A free vortex is formed, When the water flows out of a vessel through a central hole in the bottom of the vessel.
• In a cylindrical free vortex, the motion is in the form of cylindrical coordinate system with axis z directing vertically upwards.
• There exists a planar free vortex motion with tangential velocity at each horizontal cross-section.
• The total energy at any point remains constant.
• When a fluid flows in concentric circles it is known as Free cylindrical vortex flow.

To Learn more:

1) Evaluate flow field around a symmetric 2 dimensional body

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2) Derivation of vorticity equation from momentum equation

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