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//Fluid system - By - Shiv Kumar
//Chapter 2 - Impact of Jet
//Example 2.4
clc
clear
//Given Data:-
d=65; //Diameter of the Jet, mm
V=45; //Velocity of the Jet, m/s
theta_i=35; //Entry angle with horizontal, degrees
theta_o=25; //Exit angle with horizontal, 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
Fx=rho*a*V^2*(cosd(theta_i)+cosd(theta_o)); //N
Fy=rho*a*V^2*(sind(theta_i)-sind(theta_o)); //N
//Results:-
printf("Force exerted by Jet in horizontal direction, Fx=%.2f N \n", Fx) //The answer provided in the textbook is wrong
printf("Force exerted by Jet in vertial direction, Fy=%.3f N(Fy acts upward) or Fy=-%.3f N(Fy acts downward) \n", Fy, Fy) //The answer vary due to round off error
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