The effect of boundary proximity upon the wake structure of horizontal axis marine current turbines
An experimental and theoretical investigation of the flow field around small-scale mesh disk rotor simulators is presented. The downstream wake flow field of the rotor simulators has been observed and measured in the 21m tilting flume at the Chilworth hydraulics laboratory, University of Southampton...
Published in: | Journal of Offshore Mechanics and Arctic Engineering |
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Language: | English |
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2012
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ftsouthampton:oai:eprints.soton.ac.uk:333564 2023-07-30T03:59:53+02:00 The effect of boundary proximity upon the wake structure of horizontal axis marine current turbines Bahaj, A.S. Myers, L.E. Rawlinson-Smith, R. Thomson, M. 2012-05 text https://eprints.soton.ac.uk/333564/ https://eprints.soton.ac.uk/333564/1/__userfiles.soton.ac.uk_Users_nl2_mydesktop_REF_files_333564BAHAJ15.pdf en eng https://eprints.soton.ac.uk/333564/1/__userfiles.soton.ac.uk_Users_nl2_mydesktop_REF_files_333564BAHAJ15.pdf Bahaj, A.S., Myers, L.E., Rawlinson-Smith, R. and Thomson, M. (2012) The effect of boundary proximity upon the wake structure of horizontal axis marine current turbines. Journal of Offshore Mechanics and Arctic Engineering, 134 (2), 021104-[8pp]. (doi:10.1115/1.4004523 <http://dx.doi.org/10.1115/1.4004523>). Article PeerReviewed 2012 ftsouthampton https://doi.org/10.1115/1.4004523 2023-07-09T21:37:30Z An experimental and theoretical investigation of the flow field around small-scale mesh disk rotor simulators is presented. The downstream wake flow field of the rotor simulators has been observed and measured in the 21m tilting flume at the Chilworth hydraulics laboratory, University of Southampton. The focus of this work is the proximity of flow boundaries (sea bed and surface) to the rotor disks and the constrained nature of the flow. A three-dimensional Eddy-viscosity numerical model based on an established wind turbine wake model has been modified to account for the change in fluid and the presence of a bounding free surface. This work has shown that previous axi-symmetric modeling approaches may not hold for marine current energy technology and a novel approach is required for simulation of the downstream flow field. Such modeling solutions are discussed and resultant simulation results are given. In addition, the presented work has been conducted as part of a UK Government funded project to develop validated numerical modeling tools which can predict the flow onto a marine current turbine within an array. The work feeds into the marine energy program at Southampton to assist developers with layout designs of arrays which are optimally spaced and arranged to achieve the maximum possible energy yield at a given tidal energy site. Article in Journal/Newspaper Arctic University of Southampton: e-Prints Soton Tilting ENVELOPE(-54.065,-54.065,49.700,49.700) Journal of Offshore Mechanics and Arctic Engineering 134 2 |
institution |
Open Polar |
collection |
University of Southampton: e-Prints Soton |
op_collection_id |
ftsouthampton |
language |
English |
description |
An experimental and theoretical investigation of the flow field around small-scale mesh disk rotor simulators is presented. The downstream wake flow field of the rotor simulators has been observed and measured in the 21m tilting flume at the Chilworth hydraulics laboratory, University of Southampton. The focus of this work is the proximity of flow boundaries (sea bed and surface) to the rotor disks and the constrained nature of the flow. A three-dimensional Eddy-viscosity numerical model based on an established wind turbine wake model has been modified to account for the change in fluid and the presence of a bounding free surface. This work has shown that previous axi-symmetric modeling approaches may not hold for marine current energy technology and a novel approach is required for simulation of the downstream flow field. Such modeling solutions are discussed and resultant simulation results are given. In addition, the presented work has been conducted as part of a UK Government funded project to develop validated numerical modeling tools which can predict the flow onto a marine current turbine within an array. The work feeds into the marine energy program at Southampton to assist developers with layout designs of arrays which are optimally spaced and arranged to achieve the maximum possible energy yield at a given tidal energy site. |
format |
Article in Journal/Newspaper |
author |
Bahaj, A.S. Myers, L.E. Rawlinson-Smith, R. Thomson, M. |
spellingShingle |
Bahaj, A.S. Myers, L.E. Rawlinson-Smith, R. Thomson, M. The effect of boundary proximity upon the wake structure of horizontal axis marine current turbines |
author_facet |
Bahaj, A.S. Myers, L.E. Rawlinson-Smith, R. Thomson, M. |
author_sort |
Bahaj, A.S. |
title |
The effect of boundary proximity upon the wake structure of horizontal axis marine current turbines |
title_short |
The effect of boundary proximity upon the wake structure of horizontal axis marine current turbines |
title_full |
The effect of boundary proximity upon the wake structure of horizontal axis marine current turbines |
title_fullStr |
The effect of boundary proximity upon the wake structure of horizontal axis marine current turbines |
title_full_unstemmed |
The effect of boundary proximity upon the wake structure of horizontal axis marine current turbines |
title_sort |
effect of boundary proximity upon the wake structure of horizontal axis marine current turbines |
publishDate |
2012 |
url |
https://eprints.soton.ac.uk/333564/ https://eprints.soton.ac.uk/333564/1/__userfiles.soton.ac.uk_Users_nl2_mydesktop_REF_files_333564BAHAJ15.pdf |
long_lat |
ENVELOPE(-54.065,-54.065,49.700,49.700) |
geographic |
Tilting |
geographic_facet |
Tilting |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
https://eprints.soton.ac.uk/333564/1/__userfiles.soton.ac.uk_Users_nl2_mydesktop_REF_files_333564BAHAJ15.pdf Bahaj, A.S., Myers, L.E., Rawlinson-Smith, R. and Thomson, M. (2012) The effect of boundary proximity upon the wake structure of horizontal axis marine current turbines. Journal of Offshore Mechanics and Arctic Engineering, 134 (2), 021104-[8pp]. (doi:10.1115/1.4004523 <http://dx.doi.org/10.1115/1.4004523>). |
op_doi |
https://doi.org/10.1115/1.4004523 |
container_title |
Journal of Offshore Mechanics and Arctic Engineering |
container_volume |
134 |
container_issue |
2 |
_version_ |
1772810611684540416 |