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IAHR Water Monograph Series

ABOUT IAHR Water Monograph Series   Upcoming issues   Open Access

Contribution to the Theory of Undular Bores   Vortex- Flow Intakes   Variational Approach to Water Waves Modelling

IAHR Open Access | Creative Commons license

Water Monograph on Practical Flooding Risk Assessment for Development Projects

Water Monograph 4 | Practical Flooding Risk Assessment for Development Projects

With the support of HYDRA Software Ltd
By 
Alastair Barnett, James Ball, Fumihiko Imamura, Kwanchai Pakoksung and Anawat Suppasri

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ISBN (electronic): 978-90-834302-2-5
ISBN (printed): 978-90-834302-3-2 
ISSN: 2959-7978

This Water Monograph is written in response to the IAHR call for “science-informed action!” after unprecedented flood flow peaks worldwide in July 2021. It is therefore directed to the practising hydraulic engineer, who bridges the interface between writing reports and active management of post-disaster reconstruction. In particular it is aimed at codifiers, experienced supervising engineers in the often-overlooked role of revising legal Codes of Practice to guide practising engineers, when it becomes apparent (as now) that existing Codes are obsolescent and should be treated as such until updates have been issued.


About the authors

Alastair Barnett is a civil engineer with over forty years of experience of computational studies of water flows in proposed or existing engineering projects in twenty countries. As well as undertaking numerical model studies in harbours, hydropower channels, and drainage networks, he has set up many field monitoring programmes for model calibration and verification. He has developed a series of software packages for hydraulic analysis.  

Dr Barnett’s New Zealand projects include design and commissioning of the 26km Tekapo power canal, control system integration for the eight-dam Waikato River power cascade, harbour development for major ports at Tauranga and Marsden Point, the Auckland CBD stormwater bypass under the Britomart station development, and coastal flooding management for the Te Papa national museum. Internationally he has led coastal infrastructure feasibility reviews for the World Bank, the Asian Development Bank and the European Investment Bank. 

  • James Ball, University of Technology Sydney, Australia 

  • Fumihiko Imamura 

  • Kwanchai Pakoksung  

  • Anawat Suppasri 

Opinions from experts

“This IAHR Water Monograph is tailored to the needs of hydraulic engineers working on practical flood risk assessment, as well as on related fields, e.g., hydraulic structures or open channel flows. It provides insights into topics related to riverine flooding and coastal risk management. By spanning a wide range of areas, the reader will get familiar with the basic hydraulic principles of floods, their magnitudes, and the non-stationary effects of climate change. This monograph guides the reader also through hydraulic model application by giving an overview of the reliability and robustness of models. Hence, it is also a valuable contribution for experts from fields other than engineering. The eight chapters are independent and contain extensive cited publications for further reading and reflect, as well, the wealth of experience and expertise of their authors.”

Stefan Haun, Head of the Hydraulic Laboratory, University of Stuttgart, Germany

The new IAHR Water Monograph on Practical Aspects of Floods is a welcome addition to the River Engineering Literature. It is a wonderful digest of information on broad hydraulic principles and strategies for flood modeling with specific applications to coastal areas with tsunamis. The most interesting contributions include flood frequency in the age of non-stationarity, flooding near coastal areas, and several case-studies in Japan. The monograph is deliberately light on the rainfall-runoff relationship for watersheds and on the details of floodwave-propagation algorithms. Engineers and scientists will enjoy this concise and well-presented IAHR Water Monograph.

Pierre Julien, Emeritus Professor of Civil and Environmental Engineering, Colorado State University, United States

How to cite

Barnett, Alastair,  Ball, James, Imamura, Fumihiko et al. Practical Flooding Risk Assessment for Development Projects. IAHR WATER MONOGRAPHS, International Association for Hydro-Environment Engineering and Research (IAHR), Spain. pp1-138, (2024).  doi: 10.3850/IAHR_Watermonograph_004 https://www.iahr.org/library/infor?pid=29833



Water Monograph on Variational approach to water waves modelling

Water Monograph 3 | Variational approach to water waves modelling

With the support of Khalifa University of Science and Technology
By Didier Clamond, Denys Dutykh and Dimitrios Mitsotakis.

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Published: January 2024

ISBN (electronic):978-90-833476-6-0
ISBN (printed): 978-90-833476-7-7
ISSN: 2959-7978

This Water Monograph shows the benefit of using relaxed variational methods for the water waves problem. It illustrates the advantage of using a variational principle involving as many dependent variables as possible. Its primary purpose here is to provide a generalized framework for deriving model equations for water waves. This methodology is elucidated through a range of examples, a number of which are entirely novel.


Opinions from experts

"This Water Monograph takes the subject of variational principles for water waves to a new level. Lagrangians such as Luke’s are improved via relaxation where a sequence of constraints are added, enforced by Lagrange multipliers, that may be exact or approximate and, in the latter case, a range of new and surprising model equations for water waves emerge, without the need to introduce a small parameter. It is a highly effective strategy and produces Lagrangian, Hamiltonian and multisymplectic structures with equal ease."

Prof. Tom Bridges, University of Surrey, UK

“There are various interesting and new results offered worthy of a great monograph: constrained modelling with rotational aspect leading to advanced Serre-type equations, the seemingly improved shallow-water modelling over uneven bottoms and very good numerical results.”

Prof. Onno Bokhove, University of Leeds, UK

“This monograph provides an excellent introduction into the topic of model equations arising from the relaxed variational principle. This includes many well-known approximate models, such as Serre and Green–Naghdi equations, but also several new model equations. The main idea is that one can choose different approximations for all parameters in the relaxed Lagrangian.”

Dr. Evgeniy Lokharu, Lund University, Sweden

The manuscript is very well-written, accessible, and of appropriate length. The main results are clearly stated. For each new model which is proposed, the physical limits are discussed with scientific honesty and rigour. The authors wish to convince the reader that the variational formulations are more efficient and much simpler to derive approximate models than classical asymptotic expansions. Indeed, the manuscript is rather convincing and nevertheless very interesting to read. Overall, the present monograph is a very valuable contribution to the understanding of the water waves problem, both from the theoretical point of view and the numerical point of view.

Dr. Boris Kolev, ENS Paris-Saclay, France

How to cite

Clamond, Didier, Dutykh, Denys, Mitsotakis, Dimitrios. Variational approach to water waves modelling. IAHR WATER MONOGRAPHS, International Association for Hydro-Environment Engineering and Research (IAHR), Spain. (2024) https://doi.org/10.3850/978-90-833476-6-0_IAHR_Watermonograph_003

https://www.iahr.org/library/infor?pid=29802



Water Monograph on Vortex- Flow Intakes

IAHR Water Monograph ! Vortex-Flow Intakes

With the support of Northwest Hydraulic Consultants (NHC) and VorTech-Water Solutions.
By Robert Ettema, David Z. Zhu, Susan J. Gaskin, Sean Mulligan, Troy C. Lyons, Robert Boes, Shu Ning Chan, Joseph H. W. Lee

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Published: August 2023
ISBN (electronic): 978-90-833476-0-8
ISBN (printed): IS978-90-833476-1-5
ISSN: 2959-7978

This Water Monograph shows how designers use swirl and vortex generation to design vortex-flow intakes used to create vortex flows in dropshafts. Special focus is given to tangential vortex intakes, as this form is becoming especially common in urban areas. In addition, this monograph considers when swirl and vortex formation are undesired for intakes, especially submerged intakes such as used for hydropower and pumps. In so doing, this monograph serves as an update of the valuable 1987 IAHR monograph. The use of vortex-flow intakes has grown substantially since IAHR’s original monograph and will continue to grow in the foreseeable future.

IAHR Water Monographs Webinar 2: Watch on demand!

About the authors

  • Robert Ettema, Professor, Civil and Environmental Engineering. Colorado State University, Colorado, USA

  • David Z. Zhu, Professor, Ningbo University, Zhejiang, China and Professor Emeritus of Civil and Environmental

  • Engineering. University of Alberta, Alberta, Canada

  • Susan J. Gaskin, Professor, Civil Engineering. McGill University, Quebec, Canada

  • Sean Mulligan, Founder and CEO at VorTech Water Solutions Ltd. Galway, Ireland

  • Troy C. Lyons, Associate Director and Director of Engineering Services, IIHR—Hydroscience & Engineering. University of Iowa, Iowa, USA

  • Robert Boes, Professor, Laboratory of Hydraulics. Hydrology and Glaciology (VAW), ETH Zurich, Switzerland

  • Shu Ning Chan, Research Assistant Professor (former), Department of Civil and Environmental Engineering. The Hong Kong University of Science and Technology, Hong Kong SAR China

  • Joseph H. W. Lee, President and Chair Professor, Macau University of Science and Technology. Macao SAR China

Opinions from experts

"This IAHR Water Monograph offers a comprehensive overview of the hydraulics of swirling flows commonly encountered in vortex dropshafts, reservoir intakes, and pump intakes. It encompasses significant advancements in our understanding of swirling flows over the past few decades, attributed to the progress in numerical modelling and laboratory measurement technology. The monograph provides valuable guidance for researchers, hydraulic modellers, and engineers engaged in studying and working with swirling flows and vortex intake design."

Can Hua (Ken) Zhao

How to cite

Ettema, Robert, Zhu David Z, et al. Vortex- flow intakes. IAHR WATER MONOGRAPHS, International Association for Hydro-Environment Engineering and Research (IAHR), Spain. pp1-140, (2024).  https://www.iahr.org/library/infor?pid=28033

Water Monograph on Contribution to the Theory of Undular Bores: A journey around the Korteweg-de Vries equation

Contribution to the Theory of Undular Bores A journey around the Korteweg-de Vries equation

With the support of EDF
By Damien Violeau

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Published: June 2022
ISBN (electronic): 978-90-824846-9-4
ISBN (printed): 978-90-832612-0-1

The mission of Contribution to the Theory of Undular Bores. A journey around the Korteweg—de Vries equation is to describe some of the most important and classic theoretical features of undular bores, with the aim of enabling an engineer (or a non-specialist researcher) to journey through this beautiful topic of mathematical physics.Undular bores are water-surface oscillations that propagate between two levels of stationary water. They occur under various circumstances (such as tides, tsunamis, river dams and lock operations) and are a visible part of a larger group of physical phenomena termed dispersive shock waves. Readers will learn in a rigorous way but without difficult mathematical concepts, the theoretical developments that begun at the end of 19th century.

IAHR Water Monographs Webinar 1: Watch on demand!

About the author

Damien Violeau was educated at Ecole des Ponts (literally, the ‘School of Bridges’), one of the most prestigious French scientific educational institutes, where he is now full professor. Also, he is a senior Research engineer at EDF, one of the biggest energy companies in the world. His main fields of interest are free-surface flows, turbulent flows, numerical simulation, coastal protection and river-water works. In 2015, he was awarded Arthur T. Ippen award by IAHR.

Opinions from experts

"This is a very interesting book on the computations of undular bores using the Korteweg—de Vries equation. The author is right in stating that the mathematical apparatus for the solution of this approach is not well known in hydraulic engineering, given that it mainly was developed by mathematicians and physicists working on ocean dynamics. From this perspective, I think it is a welcome idea to present this material under the umbrella of IAHR, thereby making it accessible to hydraulic engineers."

Oscar Castro-Orgaz

"The raison d’être of this text is obvious: it is written simply in an accessible and clear language. There are very few texts within the mathematical literature which could compete with the present manuscript in terms of clarity. The exposition is wonderfullly pedagogical, but this is unsurprising if you ever had the opportunity to listen to Prof. Violeau’s lectures."

Denys Dutykh

How to order?

If you wish to order printed copies, contact accounts@iahr.org Price: EUR 53 plus postage rates and taxes (if any at the ordering country).

How to cite?

Violeau, Damien. Contribution to the Theory of Undular Bores. A Journey around the Korteweg-de Vries Equation. IAHR WATER MONOGRAPHS, International Association for Hydro-Environment Engineering and Research (IAHR), Spain. pp1-131, (2022). https://www.iahr.org/library/infor?pid=20693

Discover IAHR Water Monographs

This series presents information on physical processes, measurement techniques, theoretical material, numerical modeling techniques, engineering applications, and historical and cultural matters in an appealing readable and well-illustrated manner.

IAHR publishing tradition | Since 1984 supporting influential books

A long-established brand

  • Directly or in partnership with professional houses, IAHR has published the most renown books in the field of hydraulics, ie Turbulence Models and their Application in Hydraulics” by W Rodi, first published in 1984 by Balkema and I Nezu's book "Turbulence in Open Channel Flows and long-lasting books as Hydraulicians in Europe and Hydraulicians in USA by W. Hager

A further step

  • An important function of any large international organisation is to disseminate the best elements of its discipline through learned works, specialised research publications and state of the art reviews.

  • IAHR is particularly well-served in this regard by its flagship journals and by the extensive and wide body of substantive historical and reflective books that have been published through its auspices over the years.

  • This series is aimed to disseminate reference research work and state-of-the-art knowledge for researchers and practitioners in the many aspects of hydro-environmental engineering and research. OPEN and easily accessible.

IAHR Water Monographs

Upcoming IAHR Water Monographs

  • Practical Flooding Risk Assessment for Development Projects | Alastair Barnett

  • Hydraulic design guidance in a changing climate | Roberto Ranzi, Abdalla A. Ahmed, Deg-Hyo Bae, Kenichiro Kobayashi, Iñigo Losada Rodriguez, Guinevere Nalder, Bregie van Wesenbeeck

  • Artificial intelligence in hydroinformatics | Ibrahim Demir, Gabriele Freni, Duan Chen, Orazio Giustolisi, Dimitri Solomatine

  • Measurement of gravel bedload in wadeable mountain streams | Kristin Bunte, Kurt W. Swingle


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