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//Fluid Systems - By - Shiv Kumar
//Chapter 11 - Centrifugal Pumps
//Example 11.24
//To Find the the number of stages and Diameter of each Impeller of the similar multistage Pump.
clc
clear
//Given Data:-
//For Single Stage Pump,
N1=2000; //Speed, rpm
D1=300; //Impeller Diameter, mm
Hm1=32; //Manometric Head, m
Q1=3; //Discharge, m^3/s
//For Multi Stage Pump,
N2=1600; //Speed, rpm
H_mT2=200; //Total Manometric Head, m
Q2=5; //Discharge, m^3/s
//Computations:-
Hm2=Hm1*(N2/N1)*sqrt(Q2/Q1); //m
n=round(H_mT2/Hm2); //No. of stages
D2=D1*(N1/N2)*sqrt(Hm2/Hm1); //Diameter of Each Impeller, mm
//Results:-
printf("Number of the Stages for the Multi stage Pump, n=%.f \n",n)
printf("Diameter of each Impeller for the Multi stage Pump, D2=%.2f mm\n",D2) //The answer vary due to round off error
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