Hydraulics and Fluid Mechanics in ME
The flow in a pipe or channel is said to be uniform when

The quantity of liquid flowing per second is constant
Each liquid particle has a definite path
The liquid particles at all sections have the same velocities
The liquid particles at different sections have different velocities

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Hydraulics and Fluid Mechanics in ME
Froude number is significant in

Supersonics, as with projectile and jet propulsion
All of the listed here
Full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc.
Simultaneous motion through two fluids where there is a surface of discontinuity, gravity forces, and wave making effect, as with ship's hulls

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Hydraulics and Fluid Mechanics in ME
Overall efficiency of a centrifugal pump is the ratio of

Actual work-done by the pump to the energy supplied to the pump by the prime mover
Manometric head to the energy supplied by the impeller per kN of water
Energy available at the impeller to the energy supplied to the pump by the prime mover
Energy supplied to the pump to the energy available at the impeller

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