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//Fluid system - By - Shiv Kumar
//Chapter 2 - Impact of Jet
//Example 2.17
clc
clear
//Given Data:-
d=60; //Diameter of Jet, mm
Vi=22; //Absolute Velocity of Jet at Inlet, m/s
u=11; //Velocity of vane, m/s
ui=u;
uo=u;
alpha_i=0; //degrees
alpha_l=65; //degrees
alpha_o=180-alpha_l; //degrees
//Data Used:-
rho=1000; //Density of water, kg/m^3
//Computations:-
d=d/1000; //m
a=(%pi/4)*d^2; //cross-sectional area of Jet, m^2
Vwi=Vi; //m/s
Vri=Vi-ui; //m/s
Vro=Vri;
beta_o=alpha_o-asind(uo*sind(alpha_l)/Vro); //degrees
Vwo=uo-Vro*cosd(beta_o); //m/s
//(a)The Force exerted by Jet on Vane in direction of motion, Fx
Fx=rho*a*Vri*(Vwi-Vwo); //N
//(b)Power developed by vane,
P=Fx*u/1000; //kW
//(c)Efficiency of Vane,
eta=2*Fx*u/(rho*a*Vi^3)*100; //in Percentage
//Results:-
printf("(a)The Force exerted by Jet on Vane in direction of motion, Fx=%.2f N \n", Fx) //The answer vary due to round off error
printf("(b)Power developed by vane=%.3f kW \n", P) //The answer vary due to round off error
printf("(c)Efficiency of vane, eta=%.2f percent \n", eta) //The answer vary due to round off error
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