HYDRODYNAMICS OF PUMPS
by Christopher Earls Brennen © Concepts NREC 1994
Preface to the original hardback edition
This book is intended as a combination of a reference for pump experts, and a monograph for advanced students interested in some of the basic problems associated with pumps. It is dedicated to my friend and colleague Allan Acosta, with whom it has been my pleasure and privilege to work for many years.
But this book has other roots as well. It began as a series of notes prepared for a short course presented by Concepts ETI, Inc., and presided over by another valued colleague, David Japikse, the president of Concepts ETI, Inc. Another friend, Yoshi Tsujimoto, read early versions of the manuscript, and made many valuable suggestions. My thanks to all my other friends in turbomachinery research and the pump industry with whom it was my pleasure to be associated, including Dara Childs, Paul Cooper, Nick Cumpsty, Jules Dussourd, Tony Eastland, Arpad Fay, Jim Fenwick, S. Gopalakrishnan, Ed Greitzer, Loren Gross, Gene Jackson, Terry Jones, Kenjiro Kamijo, Kiyoshi Minemura, Bill Morgan, Hideo Ohashi, Sheldon Rubin, Peter Runstadler, Ed Ruth, Bruno Schiavello, Helmut Siekmann, Henry Stinson, Walt Swift and a host of others. Moreover, it was a privilege to have worked on turbomachinery problems with a group of talented students at the California Institute of Technology including Sheung-Lip Ng, David Braisted, Javier Del Valle, Greg Hoffman, Curtis Meissner, Edmund Lo, Belgacem Jery, Dimitri Chamieh, Douglas Adkins, Norbert Arndt, Ronald Franz, Mike Karyeaclis, Rusty Miskovish, Abhijit Bhattacharyya, Adiel Guinzburg and Joseph Sivo.
Finally, none of this would have been possible without Doreen's encouragement, love, and companionship and that debt is beyond words.
Christopher Earls Brennen, California Institute of Technology.
July 1994
Preface to the Japanese translation
by Yoshinobu Tsujimoto
published by Osaka University PressI am greatly honored that Prof. Yoshi Tsujimoto has chosen to prepare this Japanese translation of ``Hydrodynamics of Pumps'' for he is a gentleman and a scholar who has my greatest admiration. Ever since we first met some 20 years ago, Yoshi and I have enjoyed a very valuable exchange of ideas and developed a deep mutual respect. Indeed, his feedback was very important to me during the preparation of the original English edition. Consequently, I am in the enviable position of knowing, with confidence, that this Japanese edition will be an improvement on the original.
It also seems appropriate in this preface to acknowledge the major contributions which Japanese scientists and engineers have made to our current understanding of the hydrodynamics of pumps. In the modern era, we are all guided by the multitude of seminal ideas of Hideo Ohashi and I would like to express my deep graditude and respect to Professor Ohashi for the help he has given to so many younger engineers throughout the world. Many other Japanese pump researchers have had an important influence on my thinking and I would like to acknowledge, in particular, the help and inspiration given by Kenjiro Kamijo, Kiyoshi Minemura, Okitsugu Furuya, Hiroharu Kato, Jun-ichi Kurokawa, among others.
Finally I would like to express my gratitude to Concepts ETI, Inc., to Oxford University Press and to Osaka University Press for their help in bringing the idea of this translation to reality.
Christopher Earls Brennen, Pasadena, Calif.
August 1997
Preface to the Internet edition
Though my conversion of "Hydrodynamics of Pumps" from the hardback book to HTML is rough in places, I am so convinced of the promise of the internet that I am pleased to offer this edition freely to those who wish to use it. This new medium clearly presents some advantages and some disadvantages. The opportunity to incorporate as many color photographs as I wish (and perhaps even some movies) is a great advantage and one that I intend to use in future modifications. Another advantage is the ability to continually correct the manuscript though I will not undertake the daunting task of trying to keep it up to date. A disadvantage is the severe limitation in HTML on the use of mathematical symbols. I have only solved this problem rather crudely and apologize for this roughness in the manuscript.
In addition to those whom I thanked earlier, I would like to express my thanks to my academic home, the California Institute of Technology, for the help in providing me the facilities to effect this conversion and to Concepts NREC for their permission to place this entire book on the internet.
Christopher Earls Brennen, Pasadena, Calif.
Oct.2003