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Preface to the Dixon Turbomachinery solution manual

This book was originally conceived as a text for students in their final year reading for an honors
degree in engineering that included turbomachinery as the main subject. It was also found to be
a useful support for students embarking on postgraduate courses at the master’s level. The book was written for engineers rather than for mathematicians, although some knowledge of mathematics will
prove most useful. Also, it is assumed from the start that readers will have completed preliminary
courses in fluid mechanics. The stress is placed on the actual physics of the flows and the use of
specialized mathematical methods is kept to a minimum.
Compared to the sixth edition, this new edition has had a large number of changes made in
terms of the presentation of ideas, new material, and additional examples.

Chapter details

In Chapter 1, following the definition of a turbomachine, the fundamental laws of flow continuity, the energy and entropy
equations are introduced as well as the all-important Euler work equation. In addition, the properties of working fluids other than perfect gases are covered and a steam chart is included in the
appendices. In Chapter 2, the main emphasis is given to the application of the “similarity laws,” to
the dimensional analysis of all types of turbomachines and their performance characteristics. Additional
types of turbomachine are considered and examples of high-speed characteristics are presented.
The important ideas of specific speed and specific diameter emerge from these concepts and their
application is illustrated in the Cordier Diagram, which shows how to select the machine that will
give the highest efficiency for a given duty. Also, in this chapter, the basics of cavitation are examined for pumps and hydraulic turbines.