Wastewater Hydraulics Theory and Practice
The second, enlarged edition of this established reference integrates many new insights into wastewater hydraulics. This work serves as a reference for researchers but also is a basis for practicing engineers. It can be used as a text book for graduate st
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Willi H. Hager
Wastewater Hydraulics Theory and Practice Second Edition
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Dr. Willi H. Hager VAW, ETH Zurich CH-8092 Zürich Switzerland [email protected]
ISBN 978-3-642-11382-6 e-ISBN 978-3-642-11383-3 DOI 10.1007/978-3-642-11383-3 Springer Heidelberg Dordrecht London New York Library of Congress Control Number: 2010923828 © Springer-Verlag Berlin Heidelberg 1999, 2010 This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilm or in any other way, and storage in data banks. Duplication of this publication or parts thereof is permitted only under the provisions of the German Copyright Law of September 9, 1965, in its current version, and permission for use must always be obtained from Springer. Violations are liable to prosecution under the German Copyright Law. The use of general descriptive names, registered names, trademarks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. Cover design: WMXDesign GmbH, Heidelberg Printed on acid-free paper Springer is part of Springer Science+Business Media (www.springer.com)
To my father
Preface to Second Edition
Eleven years have passed since the first edition of Wastewater hydraulics was published. Given that the first edition is currently no more available, I was asked by Springer to prepare a second edition, thereby improving the original version in terms of recent research, corrections and outline. The general contents of the book was kept unchanged, however, because no substantial addition was made. Additions to the first edition were mainly made in the chapters dealing with the hydraulic jump, in which now also jumps in sewers are included, based on research conducted at VAW. Further, important additions to the design of special manholes subjected by supercritical approach flow are included, allowing for a straightforward design of these important elements of a sewer system. Sideweirs were also reconsidered based on experimentation. The second edition was increased by almost 100 pages, therefore. A number of mistakes, mainly in the Examples, was removed, based on detailed reading and also on the Japanese edition of this book, whose authors have recomputed all examples, and asked for advice if things still remained obscure. I would particularly like to thank my colleague Prof. Dr. Youichi Yasuda, Nihon University, Tokyo, Japan, for having initiated this large work. An Italian version of this book is by the way also in preparation, and should become available in 2011. Altogether, with the original German version, Wastewater hydraulics will then be written in four languages, demonstrating the practical relevance of a text in this field. Up to now, the figures were prepared with an old system. Thanks to Walter Thürig, VAW, all f
