Hydraulics and Fluid Mechanics in ME
The specific speed of turbine is defined as the speed of a unit

Of such a size that it requires unit power per unit head
Of such a size that it produces unit horse power with unit head
Of such a size that it delivers unit discharge at unit power
Of such a size that it delivers unit discharge at unit head

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Hydraulics and Fluid Mechanics in ME
Stanton diagram is a

semi-log plot of friction factor against relative roughness
log-log plot of friction factor against Reynolds number
log-log plot of relative roughness against Reynolds number
semi-log plot of friction factor against Reynolds number

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