Book contents
- Frontmatter
- Contents
- List of Figures and Tables
- Preface
- 1 Preliminaries
- 2 Conservation Equations
- 3 Rigid-Particle Heat Transfer at Re ≪ 1
- 4 Translational Motion at Re ≪ 1
- 5 Shape Deformations
- 6 Volume Pulsations
- 7 Thermodynamics of Suspensions
- 8 The Two-Phase Model
- 9 Sound Propagation in Suspensions
- 10 Applications and Extensions
- Appendix A Material and Transport Properties of Some Substances at 1 atm and 20°C
- Appendix B Useful Formulas from Vector Analysis
- Appendix C Explicit Expressions for Some Quantities in Spherical Polar Coordinates
- Appendix D Some Properties of the Spherical Bessel Functions
- Appendix E Legendre Polynomials
- Bibliography
- Author Index
- Subject Index
- Symbol Index
1 - Preliminaries
Published online by Cambridge University Press: 25 August 2009
- Frontmatter
- Contents
- List of Figures and Tables
- Preface
- 1 Preliminaries
- 2 Conservation Equations
- 3 Rigid-Particle Heat Transfer at Re ≪ 1
- 4 Translational Motion at Re ≪ 1
- 5 Shape Deformations
- 6 Volume Pulsations
- 7 Thermodynamics of Suspensions
- 8 The Two-Phase Model
- 9 Sound Propagation in Suspensions
- 10 Applications and Extensions
- Appendix A Material and Transport Properties of Some Substances at 1 atm and 20°C
- Appendix B Useful Formulas from Vector Analysis
- Appendix C Explicit Expressions for Some Quantities in Spherical Polar Coordinates
- Appendix D Some Properties of the Spherical Bessel Functions
- Appendix E Legendre Polynomials
- Bibliography
- Author Index
- Subject Index
- Symbol Index
Summary
Introduction
This book is concerned with the physical behavior of a collection of small particles in fluids and with the motions they can sustain, particularly sound waves. By a small particle, we mean a material body of small dimensions, and made of a gas (bubble), a liquid (droplet), or a solid. Roughly speaking, the particle size range we will be interested in is between one and a few hundred microns. The combination of many such particles and a fluid is referred to as a suspension.
Examples of suspensions of particles in fluids abound, whether we are aware of them or not. Thus, the majestic beauty of a cumulus cloud is due to both its size and to its large number of droplets; the murmurs of a brook are due to their small bubbles; and the colors of paints and inks, both natural and man-made, are due to small particles. Fogs, smokes, dusts, salad dressings, milk, blood, and many other familiar examples are also suspensions. This list makes it evident that suspensions are important in many fields, both basic and applied. For example, the settling of small particles is important in both cloud physics and in the manufacture of paints. Particle settling, or sedimentation, is but one out of many motions sustained by suspensions. This book is concerned with a subset of those motions, namely sound waves. Although apparently limited in scope, this subset includes heat transfer, mechanics, thermodynamics, and, of course, acoustics.
- Type
- Chapter
- Information
- Suspension AcousticsAn Introduction to the Physics of Suspensions, pp. 1 - 14Publisher: Cambridge University PressPrint publication year: 2005