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Derive Relationship of Specific speed (Ns) and shape of Runner
1 Answer
written 5.6 years ago by |
Specific speed Ns of a turbine is defined as the speed of geometrically similar turbines or a family of turbines having identical characteristics working under a head of 1m to produce 1 Kw of power output we know that
$u=\frac{\pi DN}{60}$
i.e $u \alpha$DN
But u $\alpha V d\sqrt{H}$
from …