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Numerical analysis of the acceleration and wake effects resulting from changes in tidal turbine array position in a channel

Numerical analysis of the acceleration and wake effects resulting from changes in tidal turbine array position in a channel
Numerical analysis of the acceleration and wake effects resulting from changes in tidal turbine array position in a channel
The modelling of tidal turbines and the effects of tidal power extraction represents a relatively new challenge in the field of computational fluid dynamics. Many different methods of defining flow and boundary conditions have been postulated and examined to determine how accurately they replicate the many parameters associated with tidal power extraction, such as hydrodynamic changes in the surrounding flow environment. This paper outlines the results of numerical modelling analysis carried out to investigate different methods of inlet velocity definition to a circulating water channel. This work is part of a wider research programme investigating flow effects in tidal turbine arrays. Results of this numerical analysis were benchmarked against previous experimental work conducted in the University of Southampton Chilworth hydraulics laboratory. Results show that some sizeable differences exist in the results of certain methods of defining inlet velocities. However certain methods do show good correlation between numerical and experimental results. This correlation would appear to justify the use of these velocity inlet definition methods in future numerical modelling of the far field effects of tidal turbine arrays
Daly, T.
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Myers, L.E.
b0462700-3740-4f03-a336-dc5dd1969228
Bahaj, A.S.
a64074cc-2b6e-43df-adac-a8437e7f1b37
Daly, T.
5abbadfe-86ea-4a2f-adbb-e8313f96ae67
Myers, L.E.
b0462700-3740-4f03-a336-dc5dd1969228
Bahaj, A.S.
a64074cc-2b6e-43df-adac-a8437e7f1b37

Daly, T., Myers, L.E. and Bahaj, A.S. (2011) Numerical analysis of the acceleration and wake effects resulting from changes in tidal turbine array position in a channel. 9th European Wave and Tidal Energy Conference, Southampton, United Kingdom. 04 - 08 Sep 2011. 9 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

The modelling of tidal turbines and the effects of tidal power extraction represents a relatively new challenge in the field of computational fluid dynamics. Many different methods of defining flow and boundary conditions have been postulated and examined to determine how accurately they replicate the many parameters associated with tidal power extraction, such as hydrodynamic changes in the surrounding flow environment. This paper outlines the results of numerical modelling analysis carried out to investigate different methods of inlet velocity definition to a circulating water channel. This work is part of a wider research programme investigating flow effects in tidal turbine arrays. Results of this numerical analysis were benchmarked against previous experimental work conducted in the University of Southampton Chilworth hydraulics laboratory. Results show that some sizeable differences exist in the results of certain methods of defining inlet velocities. However certain methods do show good correlation between numerical and experimental results. This correlation would appear to justify the use of these velocity inlet definition methods in future numerical modelling of the far field effects of tidal turbine arrays

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Published date: September 2011
Venue - Dates: 9th European Wave and Tidal Energy Conference, Southampton, United Kingdom, 2011-09-04 - 2011-09-08
Organisations: Energy & Climate Change Group

Identifiers

Local EPrints ID: 333744
URI: http://eprints.soton.ac.uk/id/eprint/333744
PURE UUID: e4911c9f-a597-4381-8970-e13ee7576776
ORCID for L.E. Myers: ORCID iD orcid.org/0000-0002-4724-899X
ORCID for A.S. Bahaj: ORCID iD orcid.org/0000-0002-0043-6045

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Date deposited: 08 Mar 2012 09:44
Last modified: 01 Oct 2020 01:34

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Contributors

Author: T. Daly
Author: L.E. Myers ORCID iD
Author: A.S. Bahaj ORCID iD

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