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//Fluid system - By - Shiv Kumar
//Chapter 2 - Impact of Jet
//Example 2.6
clc
clear
//Given Data:-
M=13.5; //Mass of plate, kg
d=16; //Diameter of the Jet, mm
V=20; //Velocity of the Jet, m/s
L=300; //Length of Edge of plate, mm
//Data Used:-
rho=1000; //Density of water, kg/m^3
g=9.81; //Acceleration due to gravity, m/s^2
//Computations:-
d=d/1000; //m
L=L/1000; //m
W=M*g; //Weight of Plate, N
a=(%pi/4)*d^2; //cross sectional area of Jet, m^2
//(a)
Fx=rho*a*V^2; //Force exerted by Jet normal to plate, N
//Taking Moment at 'A',
P=Fx*(L/2)/L; //N
//(b)
theta=asind(rho*a*V^2/W); //Angle of Swing, degrees
//Results:-
printf("(a)Horizontal force applied at Lower edge of plate to keep it vertical, P=%.3f N \n", P) //The answer vary due to round off error
printf("(b)Angle of swing, theta=%.2f degrees", theta) //The answer vary due to round off error
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