Forced vortex flow is an example of rotational flow and can be generated by rotating a cylinder containing a fluid about its axis or by rotating a paddle in a large volume of fluid. Under steady conditions, each particle will move with the same angular velocity and there will not be any relative motion between fluid particles. Streamlines for such a flow will be concentric circles and the total energy is constant along a streamline but varies from one streamline to another.

Forced vortex flow is an example of rotational flow and can be generated by rotating a cylinder containing a fluid about its axis or by rotating a paddle in a large volume of fluid. Under steady conditions, each particle will move with the same angular velocity and there will not be any relative motion between fluid particles. Streamlines for such a flow will be concentric circles and the total energy is constant along a streamline but varies from one streamline to another.