Modelling of the flow field surrounding tidal turbine arrays for varying positions in a channel
Modelling of the flow field surrounding tidal turbine arrays for varying positions in a channel
The modelling of tidal turbines and the hydrodynamic 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. This paper outlines the results of numerical modelling analysis carried out to investigate different methods of defining the inflow velocity boundary condition. 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 at the University of Southampton Chilworth hydraulics laboratory. Results show significant differences between certain methods of defining inflow velocities. However, certain methods do show good correlation with experimental results. This correlation would appear to justify the use of these velocity inflow definition methods in future numerical modelling of the far-field flow effects of tidal turbine arrays.
cfx, actuator fences, flow acceleration, wake analysis, tidal arrays
20120246-[17pp]
Daly, T.
5abbadfe-86ea-4a2f-adbb-e8313f96ae67
Myers, L.E.
b0462700-3740-4f03-a336-dc5dd1969228
Bahaj, A.S.
a64074cc-2b6e-43df-adac-a8437e7f1b37
28 February 2013
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.
(2013)
Modelling of the flow field surrounding tidal turbine arrays for varying positions in a channel.
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 371 (1985), .
(doi:10.1098/rsta.2012.0246).
Abstract
The modelling of tidal turbines and the hydrodynamic 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. This paper outlines the results of numerical modelling analysis carried out to investigate different methods of defining the inflow velocity boundary condition. 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 at the University of Southampton Chilworth hydraulics laboratory. Results show significant differences between certain methods of defining inflow velocities. However, certain methods do show good correlation with experimental results. This correlation would appear to justify the use of these velocity inflow definition methods in future numerical modelling of the far-field flow effects of tidal turbine arrays.
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e-pub ahead of print date: 14 January 2013
Published date: 28 February 2013
Keywords:
cfx, actuator fences, flow acceleration, wake analysis, tidal arrays
Organisations:
Energy & Climate Change Group
Identifiers
Local EPrints ID: 356977
URI: http://eprints.soton.ac.uk/id/eprint/356977
ISSN: 1364-503X
PURE UUID: 1a02d29e-858c-49d1-8e25-fa0b10551750
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Date deposited: 03 Oct 2013 13:01
Last modified: 15 Mar 2024 03:12
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T. Daly
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