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//Fluid system - By - Shiv Kumar
//Chapter 2 - Impact of Jet
//Example 2.7
clc
clear
//Given Data:-
W=55.50; //Weight of plate, N
V=8; //Velocity of the Jet, m/s
d=22; //Diameter of the Jet, mm
AG=125; //Distance between centre of gravity of plate from hinge, mm
AC=150; //Distance between axis of Jet and hinge, mm
theta=35; //Deflection, degrees
//Data Used:-
rho=1000; //Density of water, kg/m^3
//Computations:-
d=d/1000; //m
AC=AC/1000; //m
AG=AG/1000; //m
a=(%pi/4)*d^2; //cross sectional area of Jet, m^2
Fx=rho*a*V^2; //N
//Taking moment about hinge point 'A',
P=Fx*AC/AG; //N
Fn=(W*AG*sind(theta)+P*AG*cosd(theta))/(AC/cosd(theta)); //N
V1=sqrt(Fn/(rho*a*cosd(theta))); //Absolute Velocity of Jet, m/s
velocity_increase=V1-V; //Velocity Increase of the Jet, m/s
//Results:-
printf("(a)Horizontal force applied at centre of gravity to maintain the plate in vertical position, P=%.3f N \n", P) //The answer vary due to round off error
printf("(b)Increase in velocity of Jet=%.3f m/s", velocity_increase) //The answer vary due to round off error
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