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...

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Main Authors: Myers, L.E., Bahaj, A.S.
Format: Conference Object
Language:unknown
Published: 2008
Subjects:
Online Access:https://eprints.soton.ac.uk/52810/
http://www.ooae.org/omaedatabase/omae08dbore.htm
id ftsouthampton:oai:eprints.soton.ac.uk:52810
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spelling ftsouthampton:oai:eprints.soton.ac.uk:52810 2023-07-30T03:59:44+02:00 The effect of boundary proximity upon the wake structure of horizontal axis marine current turbines Myers, L.E. Bahaj, A.S. 2008 https://eprints.soton.ac.uk/52810/ http://www.ooae.org/omaedatabase/omae08dbore.htm unknown Myers, L.E. and Bahaj, A.S. (2008) The effect of boundary proximity upon the wake structure of horizontal axis marine current turbines. 27th International Conference on Offshore Mechanics and Arctic Engineering, , Estoril, Portugal. 15 - 20 Jun 2008. Conference or Workshop Item NonPeerReviewed 2008 ftsouthampton 2023-07-09T20:56:19Z 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 (seabed 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 modelling approaches may not hold for marine current energy technology and a novel approach is required for simulation of the downstream flow field. Such modelling solutions are discussed and resultant simulation results are given. This work has been conducted as part of a BERR-funded project to develop a numerical modelling tool which can predict the flow onto a marine current turbine within an array. The work presented in this paper feeds into this project and will eventually assist the layout design of arrays which are optimally spaced and arranged to achieve the maximum possible energy yield at a given tidal energy site. Conference Object Arctic University of Southampton: e-Prints Soton Tilting ENVELOPE(-54.065,-54.065,49.700,49.700)
institution Open Polar
collection University of Southampton: e-Prints Soton
op_collection_id ftsouthampton
language unknown
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 (seabed 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 modelling approaches may not hold for marine current energy technology and a novel approach is required for simulation of the downstream flow field. Such modelling solutions are discussed and resultant simulation results are given. This work has been conducted as part of a BERR-funded project to develop a numerical modelling tool which can predict the flow onto a marine current turbine within an array. The work presented in this paper feeds into this project and will eventually assist the layout design of arrays which are optimally spaced and arranged to achieve the maximum possible energy yield at a given tidal energy site.
format Conference Object
author Myers, L.E.
Bahaj, A.S.
spellingShingle Myers, L.E.
Bahaj, A.S.
The effect of boundary proximity upon the wake structure of horizontal axis marine current turbines
author_facet Myers, L.E.
Bahaj, A.S.
author_sort Myers, L.E.
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 2008
url https://eprints.soton.ac.uk/52810/
http://www.ooae.org/omaedatabase/omae08dbore.htm
long_lat ENVELOPE(-54.065,-54.065,49.700,49.700)
geographic Tilting
geographic_facet Tilting
genre Arctic
genre_facet Arctic
op_relation Myers, L.E. and Bahaj, A.S. (2008) The effect of boundary proximity upon the wake structure of horizontal axis marine current turbines. 27th International Conference on Offshore Mechanics and Arctic Engineering, , Estoril, Portugal. 15 - 20 Jun 2008.
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