Air Bubble Entrainment in Free-Surface Turbulent Shear Flows

by Chanson

• ISBN13: 9780121681104
• ISBN10: 0121681106
• Format: Hardcover
• Copyright: 1996-10-22
• Publisher: Elsevier Science

Summary

This book develops an analysis of the air entrainment processes in free-surface flows. These flows are investigated as homogeneous mixtures with variable density. Several types of air-water free-surface flows are studied: plunging jet flows, open channel flows, and turbulent water jets discharging into air. Experimental observations reported by the author confirm the concept that the air-water mixture behaves as a homogeneous compressible fluid in each case. This book will be of great interest to professionals working in many fields of engineering: chemical, civil, environmental, mechanical, mining, metallurgy, and nuclear.

Table of Contents

Dedicace
Abstract/Resume
Album of 'white water' photographs
Acknowledgements
About the author
List of symbols
Glossary
Introduction	p. 2
Mechanisms of air bubble entrainment	p. 17
Similitude and experimental studies	p. 27
Air-water gas transfer	p. 36
Plunging jet flows: presentation	p. 44
Air entrainment by plunging jets	p. 53
Air entrainment in hydraulic jumps	p. 73
Air entrainment in plunging jet flows: related cases and gas transfer	p. 93
Self-aerated flows - Presentation	p. 104
Air entrainment in steep chute flows	p. 110
Air entrainment in small-slope waterways	p. 133
Air entrainment in partially-filled conduits	p. 144
Air entrainment in open channels: discussion	p. 153
Introduction to high-velocity water jets discharging into the atmosphere and ventilated cavity flows	p. 166
Air entrainment in high-velocity water jets	p. 174
Ventilated cavity flows	p. 189
Spillway application: aeration devices	p. 200
Summary: air bubble diffusion in shear flows	p. 216
Conclusion	p. 235
References	p. 239
Constants and fluid properties	p. 263
Unit conversions	p. 271
Bubble rise velocity	p. 274
Sound celerity in two-phase (gas-liquid) flow	p. 278
Air bubble diffusion at plunging water jets	p. 281
Characteristic parameters of a boundary layer	p. 289
Air concentration distributions in self-aerated flows	p. 293
Air-water flow in partially-filled pipes	p. 304
Air concentration distributions in water jets discharging into the atmosphere	p. 307
Jet trajectory calculations	p. 316
Air bubble size distribution characteristics	p. 323
Air-water flow as recounted by Leonardo da Vinci	p. 327
Corrections	p. 330
Index of authors	p. 333
Subject index	p. 339
Table of Contents provided by Blackwell. All Rights Reserved.