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//Fluid Systems - By - Shiv Kumar
//Chapter 12- Reciprocating Pumps
//Example 12.13
//To Determine the Crank Angle, at which there is no flow of water to or from the vessel.
clc
clear
//Given Data:-
D=17.5; //Bore diameter, cm
L=35; //Stroke Length, cm
d_s=15; //Diameter of Suction pipe, cm
N=150; //Speed, rpm
//Computations:-
D=D/100; //m
L=L/100; //m
d_s=d_s/100; //m
omega=2*%pi*N/60; //rad/s
A=(%pi/4)*D^2; //m^2
r=L/2; //m
Q_s=2*A*omega*r/%pi; //Rate of flow from sump upto air vessel, m^3/s
theta=asind(Q_s/(A*omega*r)); //degrees
//Result:-
printf("The Crank Angle at which there is no flow, theta=%.2f Degrees\n",theta)
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