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Ian Guymer has a track record of quality academic papers published in highly rated journals and at selected international conferences and has been awarded over twenty-five major research grants with total research funding in excess of £10M. His research is focussed on transport and mixing processes related to soluble pollutants and contaminated fine suspended sediments in river, coastal and urban drainage systems.

Research Areas

Quantifying fundamental mixing processes

• Effects of cross-sectional shape and plan-form curvature on solute mixing.

• Contribution of aquatic vegetation to longitudinal mixing in channels.

• Residence time distributions for urban drainage structures.

• Influence of laminar boundary layer on low Reynolds number flow in pipes.

• Measurement of hyporheic exchange across bed sediment-river flow interface and the variations within the sediment bed.

Developing robust numerical modelling techniques

• Developed national database for travel time and dispersion to allow predictions for ungauged natural rivers.

• Quantified enhanced solute mixing due to waves in both near-shore and surf zone.

• Integrated system for including both cross-sectional shape variations and curvature for predicting transverse and longitudinal mixing processes.

• Simulation of hyporheic exchange processes.

Application to natural water quality processes and ecology

• Investigation of the effect of highway run-off on receiving water ecology.

• Operation and efficiency of constructed wetland systems and ponds.

• Predicting effect of sediment resuspension on river water quality during overflow events.

• Fate of surfactants within urban drainage and river systems.