Numerical modelling of hydrodynamics and tidal energy extraction in the Alderney Race: a review

The tides are a predictable, renewable, source of energy that, if harnessed, can provide significant levels of electricity generation. The Alderney Race (AR), with current speeds that exceed 5 m s−1 during spring tides, is one of the most concentrated regions of tidal energy in the world, with the upper-bound resource estimated at 5.1 GW. Owing to its significance, the AR is frequently used for model case studies of tidal energy conversion, and here we review these model applications and outcomes. We examine a range of temporal and spatial modelling scales, from regional models applied to resource assessment and characterization, to more detailed models that include energy extraction and array optimization. We also examine a range of physical processes that influence the tidal energy resource, including the role of waves and turbulence in tidal energy resource assessment and loadings on turbines. The review discusses model validation, and covers a range of numerical modelling approaches, from two-dimensional to three-dimensional tidal models, two-way coupled wave-tide models, Large Eddy Simulation (LES) models, and the application of optimization techniques. The review contains guidance on model approaches and sources of data that can be used for future studies of the AR, or translated to other tidal energy regions. This article is part of the theme issue ‘New insights on tidal dynamics and tidal energy harvesting in the Alderney Race’.

[1]  N. Jensen A note on wind generator interaction , 1983 .

[2]  L. Rijn Sediment Transport, Part II: Suspended Load Transport , 1984 .

[3]  Van Rijn,et al.  Sediment transport; Part I, Bed load transport , 1984 .

[4]  J. Højstrup,et al.  A Simple Model for Cluster Efficiency , 1987 .

[5]  R. Soulsby Dynamics of marine sands , 1997 .

[6]  L. E. Myers,et al.  Analytical estimates of the energy yield potential from the Alderney Race (Channel Islands) using marine current energy converters , 2004 .

[7]  L. E. Myers,et al.  Simulated electrical power potential harnessed by marine current turbine arrays in the Alderney Race , 2005 .

[8]  C. Garrett,et al.  The power potential of tidal currents in channels , 2005, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences.

[9]  L. S. Blunden,et al.  A high resolution model of the English Channel for tidal stream resource assessment , 2005 .

[10]  M. Benoit,et al.  A NEARSHORE WAVE ATLAS ALONG THE COASTS OF FRANCE BASED ON THE NUMERICAL MODELING OF WAVE CLIMATE OVER 25 YEARS , 2005 .

[11]  S. Saha,et al.  The NCEP Climate Forecast System , 2006 .

[12]  Darryl D. Holm,et al.  Implementation of the LANS-alpha turbulence model in a primitive equation ocean model , 2007 .

[13]  Beth A. Wingate,et al.  Efficient form of the LANS-α turbulence model in a primitive-equation ocean model , 2008, J. Comput. Phys..

[14]  F. Dumas,et al.  An external–internal mode coupling for a 3D hydrodynamical model for applications at regional scale (MARS) , 2008 .

[15]  Darryl D. Holm,et al.  Implementation of the LANS-α turbulence model in a primitive equation ocean model , 2008, J. Comput. Phys..

[16]  S. Neill,et al.  A model of inter-annual variability in beach levels , 2008 .

[17]  R. Ray,et al.  Assimilation of altimetry data for nonlinear shallow-water tides: Quarter-diurnal tides of the Northwest European Shelf , 2009 .

[18]  S. Neill,et al.  The impact of tidal stream turbines on large-scale sediment dynamics , 2009 .

[19]  Leo E. Jensen,et al.  Quantifying the Impact of Wind Turbine Wakes on Power Output at Offshore Wind Farms , 2010 .

[20]  Uang,et al.  The NCEP Climate Forecast System Reanalysis , 2010 .

[21]  S. Planton,et al.  Present Wave Climate in the Bay of Biscay: Spatiotemporal Variability and Trends from 1958 to 2001 , 2012 .

[22]  Scott Couch,et al.  Impact of tidal energy converter (TEC) arrays on the dynamics of headland sand banks , 2012 .

[23]  F. Dumas,et al.  In-situ database toolbox for short-term dispersion model validation in macro-tidal seas, application for 2D-model , 2012 .

[24]  F. Ardhuin,et al.  A suitable metocean hindcast database for the design of Marine energy converters , 2013 .

[25]  Paul Mycek,et al.  Experimental study of the turbulence intensity effects on marine current turbines behaviour. Part I: One single turbine , 2014 .

[26]  D. Revel Energy support measures and their impact on innovation in the renewable energy sector in Europe , 2014 .

[27]  J. Bidlot,et al.  User manual and system documentation of WAVEWATCH III R version 4.18 , 2014 .

[28]  Nicolas Guillou,et al.  Wave-energy dissipation by bottom friction in the English Channel , 2014 .

[29]  Paul Mycek,et al.  Experimental study of the turbulence intensity effects on marine current turbines behaviour. Part II: Two interacting turbines , 2014 .

[30]  M. Iredell,et al.  The NCEP Climate Forecast System Version 2 , 2014 .

[31]  Iain Fairley,et al.  The cumulative impact of tidal stream turbine arrays on sediment transport in the Pentland Firth , 2015 .

[32]  Stephan C. Kramer,et al.  Tidal resource extraction in the Pentland Firth, UK: potential impacts on flow regime and sediment transport in the Inner Sound of Stroma. , 2015 .

[33]  Ross Vennell,et al.  Designing large arrays of tidal turbines: A synthesis and review , 2015 .

[34]  J. Thiébot,et al.  Numerical modeling of the effect of tidal stream turbines on the hydrodynamics and the sediment transport – Application to the Alderney Race (Raz Blanchard), France , 2015 .

[35]  Simon W. Funke,et al.  Design optimisation and resource assessment for tidal-stream renewable energy farms using a new continuous turbine approach , 2015, ArXiv.

[36]  S. Neill,et al.  Characterising the spatial and temporal variability of the tidal-stream energy resource over the northwest European shelf seas , 2015 .

[37]  V. Nguyen,et al.  Modelling turbulence with an Actuator Disk representing a tidal turbine , 2016 .

[38]  Hamid Gualous,et al.  Tidal farm analysis using an analytical model for the flow velocity prediction in the wake of a tidal turbine with small diameter to depth ratio , 2016 .

[39]  Jérôme Thiébot,et al.  Modelling the effect of large arrays of tidal turbines with depth-averaged Actuator Disks , 2016 .

[40]  S. Neill,et al.  The influence of waves on the tidal kinetic energy resource at a tidal stream energy site , 2016 .

[41]  Hamid Gualous,et al.  A semi-analytic method to optimize tidal farm layouts – Application to the Alderney Race (Raz Blanchard), France , 2016 .

[42]  André Martinez,et al.  Methodology for estimating the French tidal current energy resource , 2017 .

[43]  A. Bahaj,et al.  Assessment of the energy extraction potential at tidal sites around the Channel Islands , 2017 .

[44]  S. Neill,et al.  Comparison of ADCP observations and 3D model simulations of turbulence at a tidal energy site , 2017 .

[45]  Grégory Pinon,et al.  Semi-analytical estimate of energy production from a tidal turbine farm with the account of ambient turbulence , 2017 .

[46]  S. Zanforlin Advantages of vertical axis tidal turbines set in close proximity: A comparative CFD investigation in the English Channel , 2018 .

[47]  S. Neill,et al.  Characterising the tidal stream power resource around France using a high-resolution harmonic database , 2018, Renewable Energy.

[48]  Y. Barbin,et al.  Hydrodynamics of Raz Blanchard: HF radar wave measurements , 2018 .

[49]  A. Bennis,et al.  Towards a Realistic Numerical Modelling of Wave-Current-Turbulence Interactions in Alderney Race , 2018, 2018 OCEANS - MTS/IEEE Kobe Techno-Oceans (OTO).

[50]  Y. Méar,et al.  Velocity Profile Variability at a Tidal-Stream Energy Site (Aldemey Race, France): From Short (Second) to Yearly Time Scales , 2018, 2018 OCEANS - MTS/IEEE Kobe Techno-Oceans (OTO).

[51]  Rajput Krishna Pal,et al.  Tidal Resource Modeling: Alderney Race , 2018, 2018 Asian Conference on Energy, Power and Transportation Electrification (ACEPT).

[52]  A. Banerjee,et al.  Performance and near-wake characterization of a tidal current turbine in elevated levels of free stream turbulence , 2019, Applied Energy.

[53]  A. Bourgoin Bathymetry induced turbulence modelling the Alderney Race site : regional approach with TELEMAC-LES , 2019 .

[54]  M. Thiébaut,et al.  Merging velocity measurements and modeling to improve understanding of tidal stream resource in Alderney Race , 2019, Energy.

[55]  R. Ata,et al.  Use of Large-Eddy Simulation for the bed shear stress estimation over a dune , 2019 .

[56]  Y. Barbin,et al.  Surface hydrodynamics of the Alderney Race from HF Radar measurements , 2019 .

[57]  Jérôme Thiébot,et al.  Effects of the Current Direction on the Energy Production of a Tidal Farm: The Case of Raz Blanchard (France) , 2019, Energies.

[58]  N. Guillou,et al.  Turbines’ effects on water renewal within a marine tidal stream energy site , 2019 .

[59]  S. Neill,et al.  The impacts of tidal energy development and sea-level rise in the Gulf of Maine , 2019, Energy.

[60]  A. Bennis,et al.  Turbulence models for coastal simulation: application to Alderney Race , 2019 .

[61]  A. Bahaj,et al.  The energy yield potential of a large tidal stream turbine array in the Alderney Race , 2020, Philosophical Transactions of the Royal Society A.

[62]  E. Poizot,et al.  Numerical study of the turbulent eddies generated by the seabed roughness. Case study at a tidal power site , 2020 .

[63]  C. Jochum,et al.  Characterization of the vertical evolution of the three-dimensional turbulence for fatigue design of tidal turbines , 2020, Philosophical Transactions of the Royal Society A.

[64]  A. Good,et al.  Wake field study of tidal turbines under realistic flow conditions , 2020 .

[65]  R. Ata,et al.  Turbulence characterization at a tidal energy site using large-eddy simulations: case of the Alderney Race , 2020, Philosophical Transactions of the Royal Society A.

[66]  E. Poizot,et al.  The merging of Kelvin–Helmholtz vortices into large coherent flow structures in a high Reynolds number flow past a wall-mounted square cylinder , 2020, Ocean Engineering.

[67]  E. Droniou,et al.  Assessing the turbulent kinetic energy budget in an energetic tidal flow from measurements of coupled ADCPs , 2020, Philosophical Transactions of the Royal Society A.

[68]  A. Bennis,et al.  Numerical modelling of three-dimensional wave-current interactions in complex environment: Application to Alderney Race , 2020, Applied Ocean Research.

[69]  E. Droniou,et al.  A comprehensive assessment of turbulence at a tidal-stream energy site influenced by wind-generated ocean waves , 2020, Energy.

[70]  E. Droniou,et al.  Influence of the 18.6-year lunar nodal cycle on the tidal resource of the Alderney Race, France , 2020 .

[71]  Marine energy. Wave, tidal and other water current converters , .