Recent Developments in Cavitation Mechanisms

✍ Scribed by Seichi Washio (Auth.)

• Publisher: Elsevier Science & Technology, Woodhead Publishing
• Year: 2015
• Tongue: English
• Leaves: 278
• Edition: 1
• Category: Library

✦ Synopsis

How does cavitation start? Presently, the nucleus theory provides the answer to this fundamental question. However the idea of nuclei contains inaccuracies that cannot be rationalized. Recent Developments in Cavitation Mechanisms discusses the uncertainties surrounding the nucleus theory, and proposes another theory of cavitation mechanism. Characteristically, the new theory is based on recent discoveries of cavity generation phenomena in separating flows. This book consists of chapters that introduce topics such as unsoundness of cavitation nuclei, and phenomena of cavity generation on walls of flow separation in hydraulic oil and water flows. Subsequent chapters cover the mechanism of cavity generation at point of flow separation, nucleation by contact motion between solids in liquid and a proposal of new cavitation mechanism based on flow separation and solid contact. The final chapters present the demonstration of a new mechanism in the hydraulic poppet valve and a concluding summary.

• proposes a new mechanism of cavitation inception in liquid machines
• describes in detail phenomena of cavity generation at point of flow separation recently discovered by the author
• discusses peculiar properties of flow separation as cause of cavity generation
• presents abundant experimental data of incipient cavitation obtained with high resolution of time and space
• provides supplementary materials of slow motion videos that can help understand the very rapid and minute phenomena of cavity generation which have been discovered by the author and will be still unfamiliar to many

✦ Table of Contents

Content:
Front matter, Pages i-iii
Copyright, Page iv
List of figures and tables, Pages ix-xxii
Preface, Pages xxiii-xxvi
Acknowledgements, Pages xxvii-xxviii
About the author, Page xxix
1 - Review of cavitation nuclei, Pages 1-44
2 - Experimental methods, Pages 45-52
3 - Cavitation inception in separating oil flows, Pages 53-131
4 - Cavitation inception in separating water flows, Pages 133-157
5 - Singular properties of flow separation as a cause of cavitation inception, Pages 159-183
6 - Tribonucleation by contact motion between solids in liquid, Pages 185-216
7 - Cavity generation by flow separation and solid contact in a hydraulic poppet valve, Pages 217-250
Afterword, Pages 251-252
Index, Pages 253-256