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We discuss certain design aspects of tidal lagoons to inform future proposals. We demonstrate the tidal lagoon representation within a 0-D and 2-D hydrodynamic modelling framework. We examine the potential of simplified 0-D modelling techniques for operation optimisation. We highlight the extent where 2-D hydrodynamic model power predictions can deviate(More)
Marine renewable energy is playing an increasing significant role in many parts of the world, mainly due to a rise in the awareness of climate change, and its detrimental effects, and the increasing cost of natural resources. The Severn Estuary, located between South West England and South Wales, has a tidal range of up to 14 m which makes it the second(More)
The potential impacts of ebb-only (one-way) and flood-ebb (two-way) modes of operation of a tidal barrage on the eutrophication potential of the Severn Estuary were investigated in this study using the simple modelling approach adopted by the UK's Comprehensive Studies Task Team (CSTT). The model predictions were compared against CSTT thresholds for(More)
The Severn Estuary has the third highest tidal range in the world with its spring tidal range reaching 14 m. The estuary is extremely turbid with very high suspended sediment concentrations and limited light penetration through the water column. It has large areas of intertidal mudflat which are of major conservation importance. Hence, it is protected under(More)
The measurement of the bed shear stress along vegetated river beds is essential for accurately predicting the water level, velocity and solute and sediment transport fluxes in computational hydroenvironmental models. Details are given herein of an experimental and theoretical study to determine the bed boundary shear stress along vegetated river beds(More)
sediments are regarded as one of the most important features of estuaries around the world. The sediment size of the cohesive sediment is normally in a range of 2-63 μm. Under certain conditions , these sediments flocculate to form large aggregates , namely flocs, which are larger than individual particles but less dense. This flocculation phenomenon has a(More)
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