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Report Workshop on Mixing processes in pipes, sewers and the natural environment from theory to practice

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This two-day workshop organised by the IAHR United Kingdom National Chapter presented recent international research findings, and practical implications, of mixing processes of soluble materials across a range of different water environments.

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Attendees to the Mixing Processes in Pipes, Sewers & the Natural Environment from Theory to Practice workshop

Hosted at the University of Sheffield on 18th & 19th April 2023, and supported by the EPSRC (EP/P012027/1), 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 University of Sheffield’s water laboratory facilities.

The presentation slides and presentation recordings are available online:

Programme

18 April 2023 | Pipe flow and Urban Drainage

Session 1 - Chair Professor Ian Guymer

  • Longitudinal Dispersion in Pipes for Steady and Unsteady Flows

    Dr James Hart, Coventry University, UK

  • Quantifying Cross-sectional Concentrations in Accelerating Flows

    Dr Zhangjie Peng, University of Sheffield, UK

  • A Novel EPANET Integration for the Diffusive–Dispersive Transport of Tracers

    Dr Stefania Piazza, University of Kore, Italy

Session 2 - Chair Professor Gabriele Freni

  • Modelling Longitudinal Dispersion in Premise Plumbing – is it needed?

    Professor Steve Buchberger, University of Cincinnati, USA

  • EPA's Research into Premise Plumbing Systems, Dispersion, and Applications

    Dr Jonathan Burkhardt and Dr Feng Shang, US Environmental Protection Agency, USA

  • Applications to managing distribution networks

    Dr Mirjam Blokker, KWR Water, Netherlands

Session 3 - Chair Dr Ole Mark

  • Advection-Diffusion Solver Suitable for Fluid Circulation in Drilling

    Dr Johnny Petersen, formerly IRIS, Norway

  • Manhole Mixing and Modelling

    Dr Fred Sonnenwald, University of Sheffield, UK

  • Sewer Modelling for Wastewater-based Epidemiology

    Mr Joe Shuttleworth, Arup, UK

Session 4 - Chair Professor Virginia Stovin

  • Travel time for in sewer treatment

    Dr Ole Mark, Kruger, Denmark

  • Non-invasive Measuring System for the Dynamics of FOG Deposits

    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

Session 1 - Chair Professor Ian Guymer

  • Quantifying the Spatial Variation in Cross-shore Mixing in the Surf Zone

    Ms Inez Plugge Porter, Imperial College, UK

  • In-situ assessment of hydraulic roughness in a vegetated channel

    Professor Jean Lacoursière, EA-International Ltd, Sweden

  • The Spatial Routing Procedure for Estimation of Dispersion Coefficient

    Dr Inhwan Park, Seoul National University of Science and Technology, South Korea

Session 2 - Chair Dr Alan Cuthbertson

  • Influence of Vegetation on Pond Residence Times

    Professor Ian Guymer, University of Sheffield, UK

  • CFD Study of Mixing within Random Cylinder Arrays

    Professor Virginia Stovin, University of Sheffield, UK

  • Characterization of Hydrodynamics and Mixing Processes in Obstructed Flows

    Dr Leo Corredor Garcia, University of Sheffield, UK

Session 3 - Chair Professor Mick Whelan

  • Transverse dispersion in a compound channel

    Dr Kevin Spence, Sheffield Hallam University, UK

  • Longitudinal dispersion affected by willow patches

    Dr Kaisa Västilä, Aalto University, Finland

  • Influence of vegetation coverage on mixing in the reach scale

    Dr Monika Kalinowska, Polish Academy of Sciences, Poland

Session 4 - Chair Professor Jean Lacoursière

  • Integrated monitoring of water quality and water quantity

    Dr Jungsun Oh, Korea Institute of Civil Engineering & Building Technology, South Korea

  • Point Source Contaminant Exposure and Impacts

    Professor Mick Whelan, University of Leicester, UK

Workshop end

Opportunity to visit the RandoSticks laboratory facility


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