The interaction of sound waves with the medium through which they pass can be used to investigate the thermophysical properties of that medium. With the advent of modern instrumentation, it is now possible to determine the speed and absorption of sound with extremely high precision and, through the dependence of those quantities on variables like temperature, pressure, and frequency to gain a sensitive measure of one or more properties of fluid. This has led to renewed interest in such measurements and in the extraction of thermophysical properties of gases and liquids there from.
Physical Acoustics and Metrology of Fluids describes both how to design experiments to achieve the highest possible accuracy and how to relate the quantities measured in those experiments to the thermophysical properties of the medium. A thorough theoretical examination of the alternative experimental methods available is designed to guide the experimentalist toward better and more accurate methods. This theoretical analysis is enhanced and complemented by an in-depth discussion of practical experimental techniques and the problems inherent within them. Bringing together the fields of thermodynamics, kinetic theory, fluid mechanics, and theoretical acoustics, plus a wealth of information about practical instruments, this book represents an essential reference on the design and execution of valuable experiments in fluid metrology and physical acoustics.
Table of Contents
FLUID PROPERTIES FROM THE SPEED AND ABSORPTION OF SOUND
Thermodynamic properties from the speed of sound
Kinetic information from the speed and absorption of sound
Transport properties from sound absorption at a surface
Propagation in an idealized fluid
Propagation in a dissipative fluid
The normal modes of an acoustic cavity
The cylindrical cavity
The spherical enclosure
The high frequency interferometer
Molecular thermal relaxation
Chemical and structural relaxation
GENERATION AND DETECTION OF SOUND
Radiation from point and piston sources
The piezoelectric effect
EXPERIMENTAL METHODS 1: STEADY-STATE TECHNIQUES
The single-transducer interferometer
The double-transducer interferometer
Choice of methods
EXPERIMENTAL METHODS 2: TRANSIENT TECHNIQUES
"In summary, this book combines sophisticated mathematics with the practical realism of laboratory work and fills a much noticed niche in readily accessible literature in the field of fluid acoustics."
-Australian and New Zealand Physicist
"… a useful summary of much fundamental material that is currently widely dispersed in the literature …"
-Measurement Science and Technology
"… recommended as an interesting new introduction and guide for scientists, especially for physicists and physical chemists, who employ sonic and ultrasonic techniques for a study of molecular properties of gases and liquids."
-F. Eggers, Acoustica, 78, 3, April 1993
"I can recommend this book to scientists working in the field."