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3D modelling of the impacts of in-stream horizontal-axis Tidal Energy Converters (TECs) on offshore sandbank dynamics

Antonia Chatzirodou, Harshinie Karunarathna Orcid Logo, Dominic Reeve Orcid Logo

Applied Ocean Research, Volume: 91, Start page: 101882

Swansea University Authors: Harshinie Karunarathna Orcid Logo, Dominic Reeve Orcid Logo

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DOI (Published version): 10.1016/j.apor.2019.101882

Abstract

The tidal energy sector is a growing industry in the UK and beyond. Energy developers’ interests are progressing towards the deployment of large arrays of tidal energy converters (TECs). Numerous factors will affect decision making related to arrays siting and size. One key factor is the effect that...

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Published in: Applied Ocean Research
ISSN: 01411187
Published: 2019
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URI: https://cronfa.swan.ac.uk/Record/cronfa51179
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first_indexed 2019-07-25T17:48:17Z
last_indexed 2019-08-15T15:30:00Z
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spelling 2019-08-15T13:46:59.8869173 v2 51179 2019-07-25 3D modelling of the impacts of in-stream horizontal-axis Tidal Energy Converters (TECs) on offshore sandbank dynamics 0d3d327a240d49b53c78e02b7c00e625 0000-0002-9087-3811 Harshinie Karunarathna Harshinie Karunarathna true false 3e76fcc2bb3cde4ddee2c8edfd2f0082 0000-0003-1293-4743 Dominic Reeve Dominic Reeve true false 2019-07-25 CIVL The tidal energy sector is a growing industry in the UK and beyond. Energy developers’ interests are progressing towards the deployment of large arrays of tidal energy converters (TECs). Numerous factors will affect decision making related to arrays siting and size. One key factor is the effect that the TEC arrays may have on the natural sediment transport patterns and the sea bottom morphodynamics. The Inner Sound Channel located between the Island of Stroma of Pentland Firth and the Scottish Mainland (UK) has been accredited for a large-scale TEC array installation to be developed in the future. Three morphodynamically active, large sandbanks are located in the Inner Sound channel. This study investigated the impacts of tidal energy extraction from a large array of TECs on the sediment dynamics and morphology of these sandbanks. A large-scale 3D hydrodynamic and morphodynamic Delft3D model was set up to computationally model Pentland Firth, Inner Sound Channel in order to study the impacts of tidal energy extraction from a generic TEC array, on the existing hydrodynamic and morphodynamic regime. A range of hypothetical energy extraction scenarios was modelled. Results reveal that the changes to morphodynamics of these sandbanks as a result of large scale tidal energy extraction far exceeds the morphology change under the natural hydrodynamic regime and that the severity of morphology change depends on the level of energy extraction. Journal Article Applied Ocean Research 91 101882 01411187 Inner sound channel, Tidal energy converters, Environmental impacts, Morphodynamics, Offshore sandbanks, Delft3D 31 10 2019 2019-10-31 10.1016/j.apor.2019.101882 COLLEGE NANME Civil Engineering COLLEGE CODE CIVL Swansea University UKRI, EP/K012851/1 2019-08-15T13:46:59.8869173 2019-07-25T09:52:58.3084756 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering Antonia Chatzirodou 1 Harshinie Karunarathna 0000-0002-9087-3811 2 Dominic Reeve 0000-0003-1293-4743 3 0051179-08082019092613.pdf chatzirodou2019.pdf 2019-08-08T09:26:13.3570000 Output 27146128 application/pdf Version of Record true 2019-08-08T00:00:00.0000000 Released under the terms of a Creative Commons Attribution License (CC-BY). true eng
title 3D modelling of the impacts of in-stream horizontal-axis Tidal Energy Converters (TECs) on offshore sandbank dynamics
spellingShingle 3D modelling of the impacts of in-stream horizontal-axis Tidal Energy Converters (TECs) on offshore sandbank dynamics
Harshinie Karunarathna
Dominic Reeve
title_short 3D modelling of the impacts of in-stream horizontal-axis Tidal Energy Converters (TECs) on offshore sandbank dynamics
title_full 3D modelling of the impacts of in-stream horizontal-axis Tidal Energy Converters (TECs) on offshore sandbank dynamics
title_fullStr 3D modelling of the impacts of in-stream horizontal-axis Tidal Energy Converters (TECs) on offshore sandbank dynamics
title_full_unstemmed 3D modelling of the impacts of in-stream horizontal-axis Tidal Energy Converters (TECs) on offshore sandbank dynamics
title_sort 3D modelling of the impacts of in-stream horizontal-axis Tidal Energy Converters (TECs) on offshore sandbank dynamics
author_id_str_mv 0d3d327a240d49b53c78e02b7c00e625
3e76fcc2bb3cde4ddee2c8edfd2f0082
author_id_fullname_str_mv 0d3d327a240d49b53c78e02b7c00e625_***_Harshinie Karunarathna
3e76fcc2bb3cde4ddee2c8edfd2f0082_***_Dominic Reeve
author Harshinie Karunarathna
Dominic Reeve
author2 Antonia Chatzirodou
Harshinie Karunarathna
Dominic Reeve
format Journal article
container_title Applied Ocean Research
container_volume 91
container_start_page 101882
publishDate 2019
institution Swansea University
issn 01411187
doi_str_mv 10.1016/j.apor.2019.101882
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering
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description The tidal energy sector is a growing industry in the UK and beyond. Energy developers’ interests are progressing towards the deployment of large arrays of tidal energy converters (TECs). Numerous factors will affect decision making related to arrays siting and size. One key factor is the effect that the TEC arrays may have on the natural sediment transport patterns and the sea bottom morphodynamics. The Inner Sound Channel located between the Island of Stroma of Pentland Firth and the Scottish Mainland (UK) has been accredited for a large-scale TEC array installation to be developed in the future. Three morphodynamically active, large sandbanks are located in the Inner Sound channel. This study investigated the impacts of tidal energy extraction from a large array of TECs on the sediment dynamics and morphology of these sandbanks. A large-scale 3D hydrodynamic and morphodynamic Delft3D model was set up to computationally model Pentland Firth, Inner Sound Channel in order to study the impacts of tidal energy extraction from a generic TEC array, on the existing hydrodynamic and morphodynamic regime. A range of hypothetical energy extraction scenarios was modelled. Results reveal that the changes to morphodynamics of these sandbanks as a result of large scale tidal energy extraction far exceeds the morphology change under the natural hydrodynamic regime and that the severity of morphology change depends on the level of energy extraction.
published_date 2019-10-31T04:02:58Z
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