Fig$\mathrm{.}1.$ Convergent$-$divergent Nozzle

QUESTION $2$: ROTODYNAMIC MACHINERY

$[20$ MARKS$]$

The velocity of steam leaving a nozzle is $925\frac{m}{s}$ and the nozzle angle is $20.$ The blade speed is $250\frac{m}{s}.$ The mass flow through the turbine nozzles and blading is $0\mathrm{.}182k\frac{g}{s}$ and the blade velocity coefficient is $0\mathrm{.}7.$

Calculate:

$2\mathrm{.}1.$ Velocity of whirl.

$2\mathrm{.}2.$ Tangential force on blades.

$2\mathrm{.}3.$ Axial force on blades.

$2\mathrm{.}4.$ Work done on blades.

$2\mathrm{.}5.$ Efficiency of blading.

$2\mathrm{.}6.$ Inlet angle of blades for the shock$-$less inflow of steam. $($Assume that the inlet and outlet blade angles are equal.$)$