Hydraulics and Fluid Mechanics in ME
Impulse turbine is generally fitted

Slightly below the tail race
Little above the tail race
At the level of tail race
About 2.5 m above the tail race to avoid cavitations

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Hydraulics and Fluid Mechanics in ME
In a forced vortex motion, the velocity of flow is

directly proportional to the square of its radial distance from the axis of rotation
directly proportional to its radial distance from axis of rotation
inversely proportional to its radial distance from the axis of rotation
inversely proportional to the square of its radial distance from the axis of rotation

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