✍ Scribed by S. Charp
No coin nor oath required. For personal study only.
This volume records the variety of techniques which can be employed to measure density, pressure, velocity, and temperature in gaseous systems. It deals with the measurements of shock waves, turbulence, condensation studies, and analog methods. The second half of the volume is concerned with techniques for the measurement of properties in materials undergoing combustion processes.
Each section constitutes an authoritative explanation of the physical principles underlying a particular type of physical measurement in gas dynamics. For example, under density measurements, there is a section on the analysis of optical methods in which the general principle of geometric optics, in the form of Fermat's law of stationary transit time is first introduced. Then the principal types of optical systems to study patterns of density variation are briefly described in a way to point out the differences between the shadowgraph, interferometer, and schlieren arrangements. Quantitative methods of analysis of different systems are then presented in greater detail and with numerous references. The emphasis here as well as throughout the book is on physical principles of operation more than on descriptions of apparatus. This section is followed by detailed discussions of shadow and sehlieren methods, interferometry, electrical discharge and afterglow technique, spectral absorption method and the X-ray technique.
Other sections cover the principles and techniques in other types of physical measurement in similar detail.
This volume of 578 pages is remarkable for the large amount of information contained in it, and for the clarity of exposition. It should be of great value to students and research workers in the fields covered,
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