Next Events

• V International Symposium on Shallow water Flows, October, 2021, Hohai University and Nanjing Hydraulic Research Institute, China, Contacts: Professors Tang Hongwu (hwtang@hhu.edu.cn) and Jinhai Zheng (jhzheng@hhu.edu.cn)

• IX Gerhard Jirka Summer School on Environmental Fluid Mechanics, June 6-10, 2022, University of Bari, Italy, Contact: Professor Michele Mossa (michele.mossa@poliba.it)

• IX Symposium on Environmental Hydraulics (ISEH 2021), July 18-22, 2021, Seoul National University, Seoul, Korea, Contact: I.W. Seo (seoilwon@snu.ac.kr)

• [New date] IX International Symposium on Stratified Flows (ISSF), 29 August - 1 September 2022, University of Cambridge, UK, Contact: Colm-cille Caulfield (cpc12@cam.ac.uk)

• X Gerhard Jirka Summer School on Environmental Fluid Mechanics, by Professor Daniel Horna-Munoz, at Universidad de Ingeniería y Tecnología (UTEC) and CITA (Water Research Institute) in Lima, Perú
  

Mission statement 

The focus of our committee is on fundamental and applied environmental fluid mechanics in support of hydraulic research. Particular emphasis is on the fundamentals of transport and mixing phenomena in turbulent flows such as contaminant transport processes in rivers, lakes and coastal regions, anthropogenic influences (e.g., heat, dissolved and suspended organic/inorganic material) and sediment dynamics. Main focus areas for our committee include:

• stratified flows (e.g., gravity currents, stratified jets and plumes, internal waves) and flows in rotating fluids, where at larger scales the rotation of the earth becomes relevant;

• shallow flows, in which the length scale in one direction (depth) is much smaller than the length scales in the other directions, and for which bed friction affects the development of the large-scale quasi two-dimensional structures;

• flow and turbulence structure over rough boundaries and porous media, including canopies and vegetation.

• two-phase laminar and turbulent flows with particular emphasis on sediment transport, high concentration mixtures showing non-Newtonian fluid behavior (e.g., mud slides, debris flows) and gas-water mixture flows caused by air entrainment at high-velocity in hydraulic structures or by cavitating flows.

• interface problems. The air-water interface on the surface of a water body remains enigmatic, especially concerning the generation, growth, and instabilities of wind waves. Similarly, the water-sediment interface at a stream bed separating turbulent water flow from the behavior of granular media has not been successfully described.  Solid-water interfaces encountered in biological applications (e.g. boundary layers on individual blades of vegetation or coral branches) present another unique challenge.

Major advances are expected over the next couple of years in gaining insights into the dynamics of these flows using state of the art experimental (e.g., particle image velocimetry) and numerical (e.g., direct numerical simulation DNS, large eddy simulation LES, large-scale predictive models) techniques. In particular, this should allow a better understanding of the role played by the large-scale coherent structures and the interactions between these large scales and the three-dimensional turbulence, and of the effect of the large-scale turbulence on bottom friction and morphodynamic processes.
Three of the most important and imminent challenges in environmental fluid mechanics and environmental hydraulics are to understand:

• to what extent the physics of these flows is dependent on scale effects,

• how the physics changes between the simpler geometries studied in the laboratory in controlled environments or using DNS/LES simulations and the complex geometries present at field scale,

• how detailed understanding of the physics of simpler types of flows (e.g., jets, wakes, mixing layers) can result into better predictive analytical models that can be applied for engineering predictions and design.

These challenges also define our long term objectives. Additionally, several challenges remain related to understanding mass exchange processes relevant to hydraulics. For example, concepts such as large-scale eddy diffusivity or hydrodynamic dispersion cannot be rigorously related to the actual flow or solid matrix properties. Empiricism prevails. Advances are urgently needed to provide the tools for the solution of modern hydraulic engineering problems - which are increasingly devoted to the prediction of the transport and deposition of materials in the natural or engineered environment. Double-diffusion is another phenomenon which has not gained needed attention.

Leadership Team Elect 
(Taking over duties during 2021 IAHR World Congress)

Chair
Professor Vladimir Nikora

Past Chair
Professor Harindra J.S. Fernando

Vice Chair
To be elected

Committee Members

• Prof. Thorsten Stoesser (University College London, UK)

• Prof. Claudia Adduce (University Roma   Tre, Italy)

• Prof. Blair Anne Johnson (The   University of Texas at Austin, USA)

• Prof. Rita F Carvalho (University of   Coimbra, Portugal)

• Dr. Damien Violeau (Electricité De France, Division R&D, France)

• Dr. Alexander N. Sukhodolov (Institute of Freshwater Ecology and Inland Fisheries, Germany)

Co-opted Members
To be elected

Past Events and Publications

Gerhard Jirka Summer School on Environmental Fluid Mechanics

• IAHR Gerhard Jirka Summer School-Environmental Fluid Mechanics, 8-16 January 2018, Campo Grande, Brazil Website Report 
  The School is a signature IAHR event that was founded and energised by the late Professor Gerhard Jirka , with a vision to bring together renowned experts and top graduate students from around the world for a unique, interactive learning experience in environmental fluid mechanics.  A central objective of the School has always been to combine theory, experiments and applications, with an emphasis on basic theoretical principles (and their mathematical description) as well as consideration of examples of engineering design and environmental applications.  This objective is realised in the School through formal, in-class lectures as well as informal, out-of class excursions and visits. In the School, the students have plenty of opportunities to present their own research projects and to discuss and seek advice on these projects from Lecturers and fellow students. 
  The school was previously held in:

• Karlsruhe, Germany, 1999

• Dundee, Scotland, 2001

• Budapest, Hungary, 2004

• Karlsruhe, Germany, 2006

• Santiago, Chile, 2009 

• Lucerne, Switzerland, 2012

• Hongkong, China, 2014

• Mato Grosso do Sul (UFMS), Campo Grande, Brazil, 2018

Environmental Hydraulics (ISEH)

• 8thInternational Symposium on Environmental Hydraulics (ISEH) 4-7 June 2018, University of Notre Dame, Indiana, USA https://ceees.nd.edu/iseh2018

• 7th International Symposium on Environmental Hydraulics (ISEH) 7-9 January 2014, Singapore

• 6th International Symposium on Environmental Hydraulics (ISEH) 25-26 June 2010, Athens, Greece

• 5th International Symposium on Environmental Hydraulics (ISEH) 4-7 December 2007, Arizona State University, Tempe, AZ, USA. Available at the IAHR Secretariat, contact: membership@iahr.org

• 4th International Symposium on Environmental Hydraulics (ISEH) and the 14th Congress of the Asia and Pacific Division of IAHR, 15-18 December 2004, Hong Kong, China

• 3rd International Symposium on Environmental Hydraulics (ISEH) with a Special Theme on Urban Fluid Dynamics, 5-8 December 2001, Tempe, Arizona, USA. Contact: don.boyer@asu.edu

• 2nd International Symposium on Environmental Hydraulics (ISEH) 16-18 December 1998, Hong Kong, China

• 1st International Symposium on Environment Hydraulics (ISEH) 1991 Hong Kong, China

Hydrodynamics (ICHD)

• 13th International Conference on Hydrodynamics (ICHD) 2-6 September,2018 Songdo,Incheon,Korea

• 12th International Conference on Hydrodynamics (ICHD) 18-23 September 2016, Egmond aan Zee. Contact: secr-mtt-3me@tudelft.nl

• 11th International Conference on Hydrodynamics (ICHD) 19-24 October 2014, Singapore

• 10th International Conference on Hydrodynamics (ICHD) 1-4 October 2012, Saint Petersburg, Russia

• 9th International Conference on Hydrodynamics (ICHD) 11-15 October 2010, Shangai, China

• 6th International Conference on Hydrodynamics (ICHD) 24-26 November 2004, Perth, Western Australia

• 4th International Conference on Hydrodynamics (ICHD) 7-9 September 2000, Yokohama, Japan. Contact: kaz@mhl.shp.ynu.ac.jp

• 3rd International Conference on Hydrodynamics (ICHD) 12-15 October 1998, Seoul, Korea. Contact: sjlee@naoe.chungnam.ac.kr

• 2nd International Conference on Hydrodynamics (ICHD) 16-19 December 1996, Hong Kong.

Stratified Flows (ISSF)

• 4th International Symposium on Shallow Flows (ISSF),26-28 June 2017, Eindhoven, The Netherlands

• 3rd International Symposium on Shallow Flows (ISSF) 4-6 June 2012, Iowa, USA. Contact: membership@iahr.org

• 2nd International Symposium on Shallow Flows (ISSF) 16-18 June 2003, Delft, The Netherlands.

Ultrasonic Doppler Methods (ISUD) Proceedings Archive

• 9th International Symposium on Ultrasonic Doppler Methods for Fluid Mechanics and Fluid Engineering (ISUD-9), 27-29 August 2014, Strasbourg, France

• 8th International Symposium on Ultrasonic Doppler Methods for Fluid Mechanics and Fluid Engineering (ISUD-8), 19-21 September 2012, Helmholtz Zentrum Dresden Rossendorf, Germany

• 7th International Symposium on Ultrasonic Doppler Methods for Fluid Mechanics and Fluid Engineering (ISUD-7), 7 - 9 Apr 2010, Gothenburg, Sweden

• 6th International Symposium on Ultrasonic Doppler Method for Fluid Mechanics and Fluid Engineering (ISUD-6) 9-11 September 2008, Prague, Czech Republic

• 5th International Symposium on Ultrasonic Doppler Methods for Fluid Mechanics and Fluid Engineering (ISUD-5), 12-14 September 2006, ETH Zurich, Switzerland

• 4th International Symposium on Ultrasonic Doppler Methods for Fluid Mechanics and Fluid Engineering (ISUD-4), 6-8 September 2004, Hokkaido University, Sapporo, Japan

• 3rd International Symposium on Ultrasonic Doppler Methods for Fluid Mechanics and Fluid Engineering (ISUD-3) 9-11 September 2002, EPFL, Lausanne, Switzerland

• 2nd International Symposium on Ultrasonic Doppler Methods for Fluid Mechanics and Fluid Engineering (ISUD-2), 20-22 September 1999, Paul Scherrer Institute, Villingen, Switzerland

• 1st International Symposium on Ultrasonic Doppler Methods for Fluid Mechanics and Fluid Engineering (ISUD-1), 9-11 September 1996, Paul Scherrer Institute, Villingen, Switzerland

Flood Induced Vibration

• 7th International Conference on Flow Induced Vibration (FIV2000) 19-22 June 2000, Lucerne, Belgium

• 4th International Symposium on Fluid-Structure Interactions, Aeroelasticity, and Flow-Induced Vibration and Noise, 16-21 November 1997, Dallas, USA. From M.P. Paldoussis, Dept of Mechanical Engineering, McGill University, 817 Sherbrooke Street West, Montreal QC, Canada

• Symposium on Flow Induced Structural Vibrations 14-16 August 1972, Karlsuhe, Germany 

Others

• Short course on Winter School on Numerical Methods Part I: Hyperbolic Equations and Applications, 2-13 February 2015, Trento, Italy

• Short course on Advanced numerical methods for free surface hydrodynamics 19-30 January 2015, Trento, Italy

• 2nd Fluids in New Zealand Workshop (FiNZ 2014) 29-31 January 2014, Auckland

• 2nd Interntional Conference on Waste Water Discharges, September 16-20, 2002, Istanbul, Turkey