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//Fluid system - By - Shiv Kumar
//Chapter 2 - Impact of Jet
//Example 2.13
clc
clear
//Given Data:-
d=25; //Diameter of the Jet, mm
V=27; //Velocity of the Jet, m/s
AoD=140; //Angle of Deflection, 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
m=rho*a*V; //Mass Flow Rate, kg/s
//For condition of Maximum work done,
u=V/3; //Velocity of Vane, m/s
theta=180-AoD; //degrees
//(a)Maximum work done/second
W=rho*a*(V-u)^2*(1+cosd(theta))*u/1000; //kJ/s
//(b)Efficiency of the Jet,
KE=(1/2)*rho*a*V^3; //kinetic energy supplied by jet per second, J
eta=W*1000/KE*100; //In percentage
//Result:-
printf("(a)Maximum work done/sec=%.3f kJ/s \n", W) //The answer vary due to round off error
printf("(b)Effeciency of the Jet, eta=%.2f percent \n", eta) //The answer vary due to round off error
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