Transport Processes in Bubbles, Drops, and Particles

by Chhabra, R. P.; De Kee, D.

• ISBN13: 9780891169994
• ISBN10: 0891169997
• Format: Hardcover
• Copyright: 1992-01-01
• Publisher: Hemisphere Pub

Summary

Contains reviews and contributions on transport processes involving bubbles, drops and particles. The authors address a range of topics including electrochemical, space and non-Newtonian applications. It is intended for those involved in basic and applied research and practising engineers.

Table of Contents

Contributors	p. xi
Preface	p. xiii
Constitutive Modeling of Bubbly Liquids	p. 1
Introduction	p. 1
Preliminaries	p. 2
Field Quantities and Equations	p. 5
Discussion	p. 12
Acknowledgment	p. 20
References	p. 20
Analytical Expressions	p. 22
Introduction and Historical Background	p. 22
Governing Equations	p. 26
Solution of the Equations for Creeping Flow	p. 28
Equations at Finite Re[subscript s] and Pe[subscript s]	p. 32
The Hydrodynamic Force and Heat Transfer for a Spheroid	p. 36
Extension of the Creeping Solutions to Higher Re--Semi-Empirical Expressions	p. 38
Effects of the Viscosity of the Sphere	p. 41
Lift Effects	p. 43
Recent Numerical Results	p. 45
Conclusion	p. 48
Acknowledgments	p. 49
Nomenclature	p. 49
References	p. 50
Electrokinetic- and Thermocapillary-Flow-Driven Aggregation of Particles and Bubbles on Surfaces	p. 55
Convective-Driven Aggregation on Conducting Surfaces	p. 55
Dynamics of Pairs of Particles and Bubbles	p. 61
Comparison between Experiment and Theory	p. 67
Discussion	p. 75
Summary	p. 76
Acknowledgments	p. 77
References	p. 77
Recent Developments in the Bubble Velocity Jump Discontinuity	p. 79
Introduction	p. 79
Literature Review	p. 79
Key Experimental Measurements	p. 88
Photographic Evidence	p. 91
Possible Explanations	p. 95
Future Outlook	p. 96
Conclusion	p. 97
Acknowledgment	p. 98
References	p. 98
Cavitation and Bubble Dynamics	p. 102
Introduction	p. 102
Nucleation Theory	p. 104
Jets and Flow over Submerged Bodies	p. 107
Experimental Techniques for the Measurement of Liquid Tensile Strength	p. 108
Bubble Dynamics	p. 111
The Behavior of Bubbles Near Boundaries	p. 118
Cavitation Damage	p. 121
References	p. 122
Further Readings	p. 127
Foam Drainage, Coarsening, and Evaporation	p. 128
Introduction	p. 128
Foam Structure	p. 130
Foam Drainage	p. 131
Foam Coarsening	p. 145
Foam Evaporation	p. 152
References	p. 157
Interphase Mass and Heat Transfer in Gas-Fluidized Beds	p. 163
Introduction	p. 163
Bubble-to-Dense-Phase Mass Transfer in Gas-Fluidized Beds	p. 163
Mass Transfer from Slugs	p. 176
Interphase Transfer in Turbulent Fluidized Beds	p. 177
Interphase Heat Transfer	p. 178
Illustrative Example	p. 179
Nomenclature	p. 180
References	p. 181
Progress in an Industrial Application of Fluidized Beds: Advances in the Sand Coremaking Process	p. 187
Introduction	p. 187
CFD Modeling of Sand Core-Shooting Process	p. 188
Experimental Apparatus and Procedure	p. 189
Results and Discussion	p. 196
Conclusion	p. 221
Acknowledgments	p. 221
References	p. 222
Further Readings	p. 222
Sedimentation and Fluidization of Solid Particles in Liquids	p. 223
Introduction	p. 223
Fluidization and Sedimentation of Single-Species Solids	p. 224
Fluidization and Sedimentation of Binary-Species Solids	p. 236
Acknowledgment	p. 242
Notation	p. 242
References	p. 243
Further Readings	p. 245
Determination of the Constitutive Relationship for Filter Cakes in Cake Filtration Using the Analogy between Filtration and Diffusion	p. 246
Introduction	p. 246
Generalized Diffusivity and its Definition	p. 248
Initial and Boundary Conditions	p. 252
Filtration Viewed as a Diffusion Process	p. 253
Prediction of Constant Pressure Filtration Characteristics	p. 256
Inversion of Filtrate Flux Data	p. 265
Conclusion and Discussion	p. 270
Symbols	p. 271
References	p. 272
Further Readings	p. 273
Tracer Dispersion in Fluid Motion through a Porous Medium	p. 274
Introduction	p. 274
Interstitial Transport	p. 275
The Rectangular Representative Unit Cell Pore-Scale Model	p. 282
Flow Perpendicularly across a Prismatic Bundle	p. 285
Conclusion	p. 289
References	p. 290
Flows of Concentrated Granular Mixtures	p. 291
Introduction	p. 291
Lubricational Regime	p. 293
The Frictional Regime	p. 298
The Collisional Regime	p. 304
Regime Determination	p. 306
Phase Coupling	p. 310
References	p. 314
Further Readings	p. 315
Wall Effects on Spheres Falling Axially in Cylindrical Tubes	p. 316
Introduction	p. 316
Theoretical Treatments	p. 317
Experimental Determination of the Wall Factor	p. 320
Experimental Results and Correlations	p. 323
Wall Effects on Nonspherical Particles or in Noncircular Conduits	p. 332
Conclusion	p. 333
Nomenclature	p. 333
References	p. 334
Steady and Transient Motion of Spherical Liquids	p. 338
Introduction	p. 338
Steady Sedimentation of a Single Sphere through a Viscoelastic Fluid	p. 339
Transient Motion of a Single Sphere	p. 359
More Complex Interactions	p. 362
Conclusion	p. 368
Acknowledgments	p. 370
References	p. 370
Further Readings	p. 375
Particle Deposition in Membrane Systems	p. 376
Introduction	p. 376
Dominant Deposition Mechanisms in Membrane Systems	p. 377
Strategies for Controlling Particle Deposition in Membrane Systems	p. 384
Conclusion	p. 391
Acknowledgments	p. 393
Nomenclature	p. 393
References	p. 395
Rheological Properties of Concentrated Suspensions	p. 397
Introduction	p. 397
Basic Concepts	p. 398
Difficulties Encountered in Rheometry with Concentrated Suspensions	p. 400
Model Suspensions	p. 403
Rheological Models	p. 411
Conclusion	p. 422
References	p. 423
Index	p. 427
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