Chapter 9

How to Do Hydraulic Calculations

Hydraulic calculations are mainly used by practitioners to size compressors, pumps, pipes, and so on. We have to do a great many of them in professional practice, and much of this work is less than conclusive. We therefore need a way to do them just rigorously enough to meet our immediate needs. In this chapter I explain how professional engineers do this.


Static; dynamic; fittings; pipe headloss


I am an old man now, and when I die and go to Heaven there are two matters on which I hope for enlightenment. One is quantum electrodynamics and the other is the turbulent motion of fluids. And about the former I am rather more optimistic.

Sir Horace Lamb

At university, all chemical engineers ...

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