This book provides a coherent and unified treatment of the fundamental physical processes involved in bubble dynamics and the phenomenon of cavitation. Of interest to a wide range of mechanical engineers, the study of cavitation and bubbly flows is applicable to topics ranging from valve damage in hydroelectric equipment, ship propellers, and internal combustion engines to the performance of turbines and pumps of all sizes. Well-written and up-to-date, the book will prove indispensable to engineers and students needing a reference detailing the problems of cavitation and bubbly flow.
1. Phase Change, Nucleation and Cavitation
1.1. Introduction
1.2. The Liquid State
1.3. Fluidity and Elasticity
1.4. Illustration of Tensile Strength
1.5. Cavitation and Boiling
1.6. Types of Nucleation
1.7. Homogeneous Nucleation Theory
1.8. Comparison with Experiments
1.9. Experiments of Tensile Strength
1.10. Heterogeneous Nucleation
1.11. Nucleation Site Populations
1.12. Effect of Contaminant Gas
1.13. Nucleation in Flowing Liquids
1.14. Viscous Effects in Cavitation Inception
1.15. Cavitation Inception Measurements
1.16. Cavitation Inception Data
1.17. Scaling of Cavitation Inception
2. Spherical Bubble Dynamics
2.1. Introduction
2.2. Rayleigh-Plesset Equation
2.3. Bubble Contents
2.4. In the Absence of Thermal Effects
2.5. Stability of Vapor/Gas Bubbles
2.6. Growth by Mass Diffusion
2.7. Thermal Effects on Growth
2.8. Thermally Controlled Growth
2.9. Non-Equilibrium Effects
2.10. Convective Effects
2.11. Surface Roughening Effects
2.12. Non-Spherical Perturbations
3. Cavitation Bubble Collapse
3.1. Introduction
3.2. Bubble Collapse
3.3. Thermally Controlled Collapse
3.4. Thermal Effects in Bubble Collapse
3.5. Non-Spherical Shape During Collapse
3.6. Cavitation Damage
3.7. Damage Due to Cloud Collapse
3.8. Cavitation Noise
3.9. Cavitation Luminescence
4. Dynamics of Oscillating Bubbles
4.1. Introduction
4.2. Bubble Natural Frequencies
4.3. Effective Polytropic Constant
4.4. Additional Damping Terms
4.5. Non-Linear Effects
4.6. Weakly Nonlinear Analysis
4.7. Chaotic Oscillations
4.8. Threshold for Transient Cavitation
4.9. Rectified Mass Diffusion
4.10. Bjerknes Forces
5. Translation of Bubbles
5.1. Introduction
5.2. High Re Flows Around a Sphere
5.3. Low Re Flows Around a Sphere
5.4. Marangoni Effects
5.5. Molecular Effects
5.6. Unsteady Particle Motions
5.7. Unsteady Potential Flow
5.8. Unsteady Stokes Flow
5.9. Growing or Collapsing Bubbles
5.10. Equation of Motion
5.11. Magnitude of Relative Motion
5.12. Deformation Due to Translation
6. Homogeneous Bubble Flows
6.1. Introduction
6.2. Sonic Speed
6.3. Sonic Speed with Change of Phase
6.4. Barotropic Relations
6.5. Nozzle Flows
6.6. Vapor/Liquid Nozzle Flow
6.8. Acoustics of Bubbly Mixtures
6.9. Shock Waves in Bubbly Flows
6.10. Spherical Bubble Cloud
7. Cavitating Flows
7.1. Introduction
7.2. Travelling Bubble Cavitation
7.3. Bubble/Flow Interactions
7.4. Experimental Observations
7.5. Large-Scale Cavitation Structures
7.6. Vortex Cavitation
7.7. Cloud Cavitation
7.8. Attached or Sheet Cavitation
7.9. Cavitating Foils
7.10. Cavity Closure
8. Free Streamline Flows
8.1. Introduction
8.2. Cavity Closure Models
8.3. Cavity Detachment Models
8.4. Wall Effects and Choked Flows
8.5. Steady Planar Flows
8.6. Some Non-Linear Results
8.7. Linearized Methods
8.8. Flat Plate Hydrofoil
8.9. Cavitating Cascades
8.10. Three-Dimensional Flows
8.11. Numerical Methods
8.12. Unsteady Flows