FLUID MACHINERY PAPER FOR UPTU
(Section-A) 1 A jet of water having a velocity of 20 m/s strikes a curved vane, which is moving with a velocity of 10 m/s.The jet makes an angle of 20 with the direction of motion of vane a inlet and leaves at an angle of 130 to the direction of motion of vane an outlet. Calculate (i) vane angles, so that the water enter and leaves the without shock. (ii) Work done per second per unit weight of water striking ? 2.Find an expression for the efficiency of a series of moving curved vanes when a jet of water strikes the vanes at one its tips. Prove that maximum efficiency is when u=V and the value of maximum efficiency is 50%. 3.Find an expression for the force on the cur...