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+// Display mode

+mode(0);

+// Display warning for floating point exception

+ieee(1);

+clear;

+clc;

+disp("Turbomachinery Design and Theory,Rama S. R. Gorla and Aijaz A. Khan, Chapter 3, Example 13")

+disp("Outer diameter, D2 = 1.4m")

+disp("Inner diameter, D1 = 0.7m")

+disp("Angle at which the water enters the vanes, alpha1 = 12 degrees")

+disp("Velocity of flow at inlet,")

+Cr2 = 2.8

+Cr1 = Cr2

+disp("As the vanes are radial at inlet and outlet end, the velocity of whirl at inlet and outlet will be zero, as shown in Fig. 3.21.")

+disp("Tangential velocity of wheel at inlet,")

+alpha1 = 12

+U1 = Cr1/tan(alpha1*%pi/180)

+D2 = 1.4

+N = 60*U1/(%pi*D2)

+disp("Let beta2 is the vane angle at outlet")

+D1 = 0.7

+U2 = %pi*D1*N/60

+disp("From Outlet triangle,")

+beta2 = atan(Cr2/U2)*180/%pi