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Computational prediction of pressure change in the vicinity of tidal stream turbines and the consequences for fish survival rate

Enayatolah Zangiabadi, Ian Masters Orcid Logo, Alison Williams Orcid Logo, Nick Croft Orcid Logo, R. Malki, Matthew Edmunds, A. Mason-Jones, Ian Horsfall

Renewable Energy, Volume: 101, Pages: 1141 - 1156

Swansea University Authors: Enayatolah Zangiabadi, Ian Masters Orcid Logo, Alison Williams Orcid Logo, Nick Croft Orcid Logo, Matthew Edmunds, Ian Horsfall

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DOI (Published version): 10.1016/j.renene.2016.09.063

Abstract

The presence of Tidal Stream Turbines (TST) for tidal power production, leads to changes in the local physical environment that could affect fish. While other work has considered the implications with respect to conventional hydroelectric devices (i.e. hydroelectric dams), including studies such as...

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Published in: Renewable Energy
ISSN: 0960-1481
Published: 2017
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URI: https://cronfa.swan.ac.uk/Record/cronfa30212
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While other work has considered the implications with respect to conventional hydroelectric devices (i.e. hydroelectric dams), including studies such as physical impact with the rotors and pressure variation effects, this research considers the effects of sudden changes in pressure and turbulence on the hypothetical fish with respect to TSTs. Computational fluid dynamics (CFD) is used to investigate changes to the environment, and thus study the implications for fish. Two CFD methods are employed, an embedded Blade Element representation of the rotor in a RANS CFD model, and a blade resolved geometry using a moving reference frame. A new data interpretation approach is proposed as the primary source of environmental impact data; &#x2018;rate of change of pressure&#x2019; with time along a streamtrace. This work also presents results for pressure, pressure gradients, shear rates and turbulence to draw conclusions about changes to the local physical environment. 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spelling 2021-01-14T12:55:01.6400832 v2 30212 2016-09-26 Computational prediction of pressure change in the vicinity of tidal stream turbines and the consequences for fish survival rate e2df34f5382ef05359ee1405532b2351 Enayatolah Zangiabadi Enayatolah Zangiabadi true false 6fa19551092853928cde0e6d5fac48a1 0000-0001-7667-6670 Ian Masters Ian Masters true false cb1b1946eccac3bbf7592d6ab1c4d065 0000-0002-2494-1468 Alison Williams Alison Williams true false 8f82cd0b51f4b95b0dd6fa89427d9fc7 0000-0002-1521-5261 Nick Croft Nick Croft true false 3a5a9c64786ffb47f970ef5a5ae02659 Matthew Edmunds Matthew Edmunds true false 6dc01ae10d1e0e2ba9d0fa9e92389653 Ian Horsfall Ian Horsfall true false 2016-09-26 The presence of Tidal Stream Turbines (TST) for tidal power production, leads to changes in the local physical environment that could affect fish. While other work has considered the implications with respect to conventional hydroelectric devices (i.e. hydroelectric dams), including studies such as physical impact with the rotors and pressure variation effects, this research considers the effects of sudden changes in pressure and turbulence on the hypothetical fish with respect to TSTs. Computational fluid dynamics (CFD) is used to investigate changes to the environment, and thus study the implications for fish. Two CFD methods are employed, an embedded Blade Element representation of the rotor in a RANS CFD model, and a blade resolved geometry using a moving reference frame. A new data interpretation approach is proposed as the primary source of environmental impact data; ‘rate of change of pressure’ with time along a streamtrace. This work also presents results for pressure, pressure gradients, shear rates and turbulence to draw conclusions about changes to the local physical environment. The assessment of the local impact is discussed in terms of the implications to individual fish passing a single or array of TST devices. Journal Article Renewable Energy 101 1141 1156 0960-1481 Marine energy; Tidal stream turbine; CFD; Fish; Marine environment 1 2 2017 2017-02-01 10.1016/j.renene.2016.09.063 COLLEGE NANME COLLEGE CODE Swansea University RCUK 2021-01-14T12:55:01.6400832 2016-09-26T10:07:10.7914192 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering Enayatolah Zangiabadi 1 Ian Masters 0000-0001-7667-6670 2 Alison Williams 0000-0002-2494-1468 3 Nick Croft 0000-0002-1521-5261 4 R. Malki 5 Matthew Edmunds 6 A. Mason-Jones 7 Ian Horsfall 8 0030212-10112016090808.pdf zangiabadi2016(2).pdf 2016-11-10T09:08:08.3630000 Output 4562016 application/pdf Version of Record true 2016-11-10T00:00:00.0000000 Released under the terms of a Creative Commons Attribution License (CC-BY). true eng http://creativecommons.org/licenses/by/4.0/
title Computational prediction of pressure change in the vicinity of tidal stream turbines and the consequences for fish survival rate
spellingShingle Computational prediction of pressure change in the vicinity of tidal stream turbines and the consequences for fish survival rate
Enayatolah Zangiabadi
Ian Masters
Alison Williams
Nick Croft
Matthew Edmunds
Ian Horsfall
title_short Computational prediction of pressure change in the vicinity of tidal stream turbines and the consequences for fish survival rate
title_full Computational prediction of pressure change in the vicinity of tidal stream turbines and the consequences for fish survival rate
title_fullStr Computational prediction of pressure change in the vicinity of tidal stream turbines and the consequences for fish survival rate
title_full_unstemmed Computational prediction of pressure change in the vicinity of tidal stream turbines and the consequences for fish survival rate
title_sort Computational prediction of pressure change in the vicinity of tidal stream turbines and the consequences for fish survival rate
author_id_str_mv e2df34f5382ef05359ee1405532b2351
6fa19551092853928cde0e6d5fac48a1
cb1b1946eccac3bbf7592d6ab1c4d065
8f82cd0b51f4b95b0dd6fa89427d9fc7
3a5a9c64786ffb47f970ef5a5ae02659
6dc01ae10d1e0e2ba9d0fa9e92389653
author_id_fullname_str_mv e2df34f5382ef05359ee1405532b2351_***_Enayatolah Zangiabadi
6fa19551092853928cde0e6d5fac48a1_***_Ian Masters
cb1b1946eccac3bbf7592d6ab1c4d065_***_Alison Williams
8f82cd0b51f4b95b0dd6fa89427d9fc7_***_Nick Croft
3a5a9c64786ffb47f970ef5a5ae02659_***_Matthew Edmunds
6dc01ae10d1e0e2ba9d0fa9e92389653_***_Ian Horsfall
author Enayatolah Zangiabadi
Ian Masters
Alison Williams
Nick Croft
Matthew Edmunds
Ian Horsfall
author2 Enayatolah Zangiabadi
Ian Masters
Alison Williams
Nick Croft
R. Malki
Matthew Edmunds
A. Mason-Jones
Ian Horsfall
format Journal article
container_title Renewable Energy
container_volume 101
container_start_page 1141
publishDate 2017
institution Swansea University
issn 0960-1481
doi_str_mv 10.1016/j.renene.2016.09.063
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 - Mechanical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering
document_store_str 1
active_str 0
description The presence of Tidal Stream Turbines (TST) for tidal power production, leads to changes in the local physical environment that could affect fish. While other work has considered the implications with respect to conventional hydroelectric devices (i.e. hydroelectric dams), including studies such as physical impact with the rotors and pressure variation effects, this research considers the effects of sudden changes in pressure and turbulence on the hypothetical fish with respect to TSTs. Computational fluid dynamics (CFD) is used to investigate changes to the environment, and thus study the implications for fish. Two CFD methods are employed, an embedded Blade Element representation of the rotor in a RANS CFD model, and a blade resolved geometry using a moving reference frame. A new data interpretation approach is proposed as the primary source of environmental impact data; ‘rate of change of pressure’ with time along a streamtrace. This work also presents results for pressure, pressure gradients, shear rates and turbulence to draw conclusions about changes to the local physical environment. The assessment of the local impact is discussed in terms of the implications to individual fish passing a single or array of TST devices.
published_date 2017-02-01T03:36:50Z
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score 11.013148

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