Representation and operation of tidal energy impoundments in a coastal hydrodynamic model

Athanasios Angeloudis*, Roger A. Falconer, Samuel Bray, Reza Ahmadian

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

A methodology associated with the simulation of tidal range energy projects through a coastal hydrodynamic model is discussed regarding its capabilities and limitations. Particular focus is directed towards the formulations imposed for the representation of hydraulic structures and the corresponding model boundary conditions. Details of refinements are presented that would be applicable in representing the flow (and momentum flux) expected through tidal range turbines to inform the regional modelling of tidal lagoons and barrages. A conceptual tidal lagoon along the North Wales coast, a barrage across the Severn Estuary and the Swansea Bay Lagoon proposal are used to demonstrate the effect of the refinements for projects of a different scale. The hydrodynamic model results indicate that boundary refinements, particularly in the form of accurate momentum conservation, have a noticeable influence on near-field conditions and can be critical when assessing the environmental impact arising from the schemes. Finally, it is shown that these models can be used to guide and improve tidal impoundment proposals.

Original languageEnglish
Pages (from-to)1103-1115
Number of pages13
JournalRenewable Energy
Volume99
Early online date11 Aug 2016
DOIs
Publication statusPublished - 31 Dec 2016

Keywords

  • Numerical modelling
  • Renewable tidal energy
  • Severn barrage
  • Swansea Bay Lagoon
  • Tidal range power

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