I'm currenty doing a course in trubomachinery at the university were I've got stuck on the following question:
An axial turbine has a reaction ratio $R =\frac{1}{2}.$ Air enters the rotor with relative velocity at an angle $β_2 = 15^\circ$, and the axial velocity is constant for the stage. The blade speed is U = 300 m/s, and the tangential velocity change across the rotor is $V_{u2} − V_{u3} = 320 m/s.$
Were I need to find:
(a) Find the axial velocity.
(b). Find the angle at which the absolute velocity enters the rotor.
I've done the following:
