Mixing processes in pipes, sewers and the natural environment from theory to practice: workshop summary
This two-day workshop presented recent international research findings, and practical implications, of mixing processes of soluble materials across a range of different water environments.

Hosted at the СŷÊÓƵ of Sheffield on 18th & 19th April 2023, and supported by the EPSRC () and , this workshop was organised by Professor Ian Guymer to bring together researchers, environmental regulators, engineering consultants and water utilities, to hear the latest international research on mixing processes. The workshop was a great success with over 50 people attending the in-person talks each day.
Predicting water quality processes, together with their human and ecological impact, is a major challenge and requires an understanding of mixing processes. In total, 22 presentations from 10 countries, were delivered, highlighting recent advances, and generating robust discussions. Day 1 focussed on mixing in pipes and urban drainage systems, whilst talks on day 2 focussed on environmental flows. Breaks between presentations fostered several useful discussions about the many challenges facing the water industry. At the end of each day, attendees were invited to view the СŷÊÓƵ of Sheffield’s water laboratory facilities.
The and presentation recordings are linked in the programme below.
Programme
- 18 April 2023 | Pipe flow and Urban Drainage
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Session 1 - Chair Professor Ian Guymer
Dr James Hart, Coventry СŷÊÓƵ, UK
Dr Zhangjie Peng, СŷÊÓƵ of Sheffield, UK
Dr Stefania Piazza, СŷÊÓƵ of Kore, Italy
Session 2 - Chair Professor Gabriele Freni
Professor Steve Buchberger, СŷÊÓƵ of Cincinnati, USA
Dr Jonathan Burkhardt and Dr Feng Shang, US Environmental Protection Agency, USA
Dr Mirjam Blokker, KWR Water, Netherlands
Session 3 - Chair Dr Ole Mark
Dr Johnny Petersen, formerly IRIS, Norway
Dr Fred Sonnenwald, СŷÊÓƵ of Sheffield, UK
Mr Joe Shuttleworth, Arup, UK
Session 4 - Chair Professor Virginia Stovin
Dr Ole Mark, Kruger, Denmark
Professor Francois Clemens, TU Delft, Netherlands
Reception in the Heartspace E Floor Atrium
- Opportunity to visit the unsteady pipe flow laboratory facility
- 19 April 2023 | Environmental flows
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Session 1 - Chair Professor Ian Guymer
Ms Inez Plugge Porter, Imperial College, UK
Professor Jean Lacoursière, EA-International Ltd, Sweden
Dr Inhwan Park, Seoul National СŷÊÓƵ of Science and Technology, South Korea
Session 2 - Chair Dr Alan Cuthbertson
Professor Ian Guymer, СŷÊÓƵ of Sheffield, UK
Professor Virginia Stovin, СŷÊÓƵ of Sheffield, UK
Dr Leo Corredor Garcia, СŷÊÓƵ of Sheffield, UK
Session 3 - Chair Professor Mick Whelan
Dr Kevin Spence, Sheffield Hallam СŷÊÓƵ, UK
Dr Kaisa Västilä, Aalto СŷÊÓƵ, Finland
Dr Monika Kalinowska, Polish Academy of Sciences, Poland
Session 4 - Chair Professor Jean Lacoursière
Dr Jungsun Oh, Korea Institute of Civil Engineering & Building Technology, South Korea
Professor Mick Whelan, СŷÊÓƵ of Leicester, UK
Workshop end
- Opportunity to visit the RandoSticks laboratory facility
Event description
This event page and flyer were circulated ahead of the workshop.