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//Fluid Systems- By Shiv Kumar
//Chapter 5- Francis Turbine
//Example 5.14
//To Find the Pressure Head at the Entrance.
clc
clear
//Given Data:-
Vo=5.6; //Velocity at Inlet, m/s
Vd=1.4; //Velocity at Outlet, m/s
h_f=0.12; //Friction Losses, m
Ho=5.2; //Vertical Height betwen tail-race and entrance of Draft-tube, m
//Data Required:-
g=9.81; //Acceleration due to gravity, m/s^2
//Calculations:-
//Applying Bernoulli's Equation with,
Z2=0;
pa_by_rho_g=0;
p1_by_rho_g=pa_by_rho_g+(Vd^2-Vo^2)/(2*g)+Z2-Ho+h_f; //m
//Results:-
printf("The Pressure Head at Entrance, p1/(rho*g)=%.3f m\n",p1_by_rho_g)
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