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//Fluid system - By - Shiv Kumar
//Chapter 2 - Impact of Jet
//Example 2.31
//To Find (i)The volume of water drawn by the pump per second (ii)The Efficiency of Jet propulsion.
clc
clear
//Given Data:-
F=5890; //Total resistance offered to motion, N
a=424; //Total area of Jet, cm^2
u=6; //Speed of boat, m/s
//Data Used:-
rho=1000; //Density of water, kg/m^3
//Computaions:-
a=a/10000; //m^2
//For solving Quadratic in V
A=rho*a;
B=rho*a*u;
C=-F;
V=(-B+sqrt(B^2-4*C*A))/(2*A); //m/s
//(i)
Q=a*(V+u); //m^3/s
//(ii)
eta=2*V*u/(V+u)^2*100; //In percentage
//Results:-
printf("(i)The Volume of water drawn by the pump per second=%.4f m^3/s \n", Q) //The answer vary due to round off error
printf("(ii)The Efficiency of Jet propulsion, eta=%.2f percent", eta) //The answer vary due to round off error
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