Turbulence Phenomena - 1st Edition - ISBN: 9780122060700, 9780323150934

Turbulence Phenomena

1st Edition

An Introduction to the Eddy Transfer of Momentum, Mass, and Heat, Particularly at Interfaces

Authors: J.T. Davies
eBook ISBN: 9780323150934
Imprint: Academic Press
Published Date: 1st January 1972
Page Count: 424
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Description

Turbulence Phenomena provides an introduction to the eddy transfer of momentum, mass, and heat, specifically at interfaces. The approach of the discussion of the subject matter is based on the eddy mixing length concept of Prandtl.
Chapter 1 begins with a discussion on basic concepts regarding liquid flow such as viscosity, turbulent flows, and velocities. As concepts and theories are established, the book then discusses the eddy transfer in fluids, specifically eddy transfer of mass and heat within fluids and eddy transfer near solid surfaces. The concept of eddies in different surfaces is discussed in length all throughout numerous chapters. These different surfaces include clean gas-liquid surfaces, clean liquid-liquid interfaces, and film-covered surfaces. The last few chapters focus on the more detailed discussion on turbulence, such as the concept of spontaneous interfacial turbulence and emulsification and turbulent dispersion and coalescence.
The book will be of great use to undergraduate students of chemical engineering, physics, and chemistry.

Table of Contents


Preface

Acknowledgments

Chapter 1. Velocities and Stresses in Turbulent Flows

Introduction

Types of Turbulent Flow

Pipe-Flow Turbulence

Prandtl's Theory

Shear Stress Velocity

Velocity Profiles

Dimensionless Units

The Interpretation of υ0

The Friction Factor φ and Pressure Drops

Dimensionless One-Seventh-Power Velocity Profile

Flow over Flat Plates

Entry Effects in Pipes

Flow in Open Channels

Isotropic Turbulence

Turbulence in Stirred Tanks

Free Turbulent Jets

Restrained Turbulent Jets

References

Chapter 2. Eddy Transfer of Mass and Heat within Fluids

Introduction to Mass Transfer in Fluids

Mass Transfer in Turbulent Flows

Mixing in Turbulent Flows

Introduction to Heat Transfer in Fluids

Heat Transfer in Turbulent Flows

Thermal Mixing in Turbulent Flows

References

Chapter 3. Eddy Transfer near Solid Surfaces

Eddies near a Solid Surface

Velocity Profiles near Wall for Turbulent Flow

Relation between Momentum and Mass Transfer

Comparison with Experiment for Smooth Surfaces

Mass Transfer from Rough Surfaces

Mass Transfer in Stirred Tanks

Mass Transfer into Impinging Submerged Turbulent Jets

Reaction between Dissolving Solid and Bulk Reactant

Deposition from Colloidal Dispersions

Relation between Momentum and Heat Transfer

Comparison with Experiment

Heat Transfer across Rough Walls

Heat Transfer from Suspended Solids

Heat Transfer in Stirred Tanks from Jacket or Coiled Pipes

Heat Transfer to Liquid Metals in Pipes

Heat Transfer into Impinging Submerged Jets

References

Chapter 4. Eddies at Clean Gas-Liquid Surfaces

Eddies near a Liquid Surface

Mass Transfer Calculations

Experiments on Surface Renewal

Experimental Physical Absorption Rates

Gas Absorption with Chemical Reaction

References

Chapter 5. Eddies at Clean Liquid-Liquid Interfaces

Eddies near a Clean Liquid-Liquid Interface

Visualization of Interfacial Renewal

Experimental Physical Absorption Rates

Extraction Accompanied by Chemical Reaction

Heat Transfer

References

Chapter 6. Eddies at Film-Covered Surfaces

Eddies near Film-Covered Surfaces

Experiments on Surface Renewal

Experimental Physical Absorption Rates

References

Chapter 7. Turbulence in Non-Newtonian Fluids and Drag Reduction

Nonelastic Non-Newtonian Fluids

Elastic Fluids in Shear

Reduction of Turbulent Drag

Drag Reduction by Flexible Walls

References

Chapter 8. Eddies in and around Moving Drops

Introduction

Velocity and Mass Transfer at Low Drop Reynolds Number

Velocity and Mass Transfer at Intermediate Reynolds Numbers (Re = 50-200)

Heat Transfer at Reynolds Numbers up to about 200

Drop Behavior at High Drop Reynolds Numbers (a Few Hundred to a Few Thousand)

Heat Transfer at High Reynolds Numbers

Larger Drops and Bubbles

Non-Newtonian Systems

Drops in Agitated Systems

References

Chapter 9. Spontaneous Interfacial Turbulence and Emulsification

Spontaneous Interfacial Turbulence

Quantitative Theories

Mass Transfer and Interfacial Turbulence

Mass and Heat Transfer at Solid Surfaces

Spontaneous Emulsification

References

Chapter 10. Turbulent Dispersion and Coalescence

Introduction

Dispersion into Isotropic Turbulence

Dispersion into Pipe-Flow Turbulence

Dispersions of Liquids and Solids in Gases

Dispersion of Liquids from Turbulent Jets

Dispersion of Gas Bubbles in Turbulent Liquids

Mass Transfer in Disperse Systems

Coalescence

Practical Extraction in Agitated Systems

References

Appendix I. The Equation of Continuity

Appendix II. The Levich Treatment of Mass Transfer

Appendix III. The Effect of Chemical Reaction on Solution Rates

Appendix IV. Deposition of Aerosol Particles from Turbulent Fluids

Appendix V. Heat Transfer to Liquid Metals

Appendix VI. Rate of Absorption of a Gas into a Turbulent Liquid

Appendix VII. Absorption of Gas with Chemical Reaction

Symbols and Units

Useful Conversion Factors

Notation

Problems

Author Index

Subject Index


Details

No. of pages:
424
Language:
English
Copyright:
© Academic Press 1972
Published:
Imprint:
Academic Press
eBook ISBN:
9780323150934

About the Author

J.T. Davies

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