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//Fluid system - By - Shiv Kumar
//Chapter 2 - Impact of Jet
//Example 2.28
clc
clear
//Given Data:-
V=20; //Absolute Velocity of Jet of Water, m/s
a=0.02; //Cross-sectional area of Jet, m^2
u=30; //Speed of boat, km/hr
//Data Used:-
rho=1000; //Density of water, kg/m^3
//Computations:-
u=u*1000/3600; //m/s
//(a)
Fx=rho*a*(V+u)*V; //N
//(b)
P=Fx*u/1000; //kW
//(c)
eta=2*V*u/(V+u)^2*100; //in Percentage
//Results:-
printf("(a)Propelling Force on the boat, Fx=%.f N \n", Fx) //The answer vary due to round off error
printf("(b)power required to drive the pump=%.2f kW \n", P) //The answer vary due to round off error
printf("(c)Efficiency of the Jet propulsion, eta=%.2f percent", eta) //The answer vary due to round off error
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