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//Fluid system - By - Shiv Kumar
//Chapter 2 - Impact of Jet
//Example 2.22
clc
clear
//Given Data:-
Vi=32; //velocity of Jet at Inlet, m/s
u=16; //Velocity of Vane, m/s
ui=u;
uo=u;
alpha_i=22; //Angle of Jet at Inlet, degrees
K=0.92; //Co-efficient of Vane
//Data Used:-
g=9.81; //Acceleration due to gravity, m/s^2
//Computations:-
Vwi=Vi*cosd(alpha_i); //m/s
Vfi=Vi*sind(alpha_i); //m/s
Vrwi=Vwi-ui; //m/s
//(a)
beta_i=atand(Vfi/Vrwi); //degrees
Vri=Vfi/sind(beta_i); //m/s
Vro=K*Vri; //m/s
beta_o=acosd(uo/Vro); //degrees
//(b)
Vwo=0; //m/s(as alpha_o=90 degrees)
W=(Vwi+Vwo)*u/g; //N-m/N
//(c)
eta=2*Vwi*u/Vi^2*100; //In percentage
//Results:-
printf("(a)Vane angle at Entrance, beta_i=%.2f degrees \n", beta_i) //The answer vary due to round off error
printf(" Vane angle at exit, beta_o=%.2f degrees \n", beta_o) //The answer vary due to round off error
printf("(b)Work done on vanes per unit weight of water=%.2f N-m/N \n", W)
printf("(c)Efficiency of the system, eta=%.2f percent", eta) //The answer vary due to round off error
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