Characterising the flow field around scale horizontal axis marine current turbine mesh disk rotor simulators
Characterising the flow field around scale horizontal axis marine current turbine mesh disk rotor simulators
Understanding the flow field around horizontal axis marine current turbines is important if this new energy generation technology is to advance. It is the aim of this work to identify and investigate the principle parameters that govern the wake structure and its recovery to the free-stream velocity profile to allow large farms or arrays of devices to be installed whilst maximising individual device and array efficiency. Wake characteristics of small-scale mesh disk rotor simulators have been measured in the 21m tilting flume at the Chilworth hydraulics laboratory, University of Southampton. Mean flow velocity and turbulence intensities have been evaluated using an Acoustic Doppler Velocimeter at locations upstream and downstream of the disks in order to characterise the wake profile for varying disk thrust and vertical position. The results indicate that there are a number of variables that effect wake recovery, some of which may impact significantly upon such multiple-device array installations.
Myers, L.E
b0462700-3740-4f03-a336-dc5dd1969228
Bahaj, A.S
a64074cc-2b6e-43df-adac-a8437e7f1b37
Hyam, D.M
36d77301-f08e-4e77-a8ed-8ab2b72160fb
Myers, L.E
b0462700-3740-4f03-a336-dc5dd1969228
Bahaj, A.S
a64074cc-2b6e-43df-adac-a8437e7f1b37
Hyam, D.M
36d77301-f08e-4e77-a8ed-8ab2b72160fb
Myers, L.E, Bahaj, A.S and Hyam, D.M
(2010)
Characterising the flow field around scale horizontal axis marine current turbine mesh disk rotor simulators.
Experiments in Fluids.
(Submitted)
Abstract
Understanding the flow field around horizontal axis marine current turbines is important if this new energy generation technology is to advance. It is the aim of this work to identify and investigate the principle parameters that govern the wake structure and its recovery to the free-stream velocity profile to allow large farms or arrays of devices to be installed whilst maximising individual device and array efficiency. Wake characteristics of small-scale mesh disk rotor simulators have been measured in the 21m tilting flume at the Chilworth hydraulics laboratory, University of Southampton. Mean flow velocity and turbulence intensities have been evaluated using an Acoustic Doppler Velocimeter at locations upstream and downstream of the disks in order to characterise the wake profile for varying disk thrust and vertical position. The results indicate that there are a number of variables that effect wake recovery, some of which may impact significantly upon such multiple-device array installations.
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Submitted date: 2010
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Local EPrints ID: 74197
URI: http://eprints.soton.ac.uk/id/eprint/74197
ISSN: 0723-4864
PURE UUID: b9bb3a27-1c71-47cf-8bd6-a12be458129a
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Date deposited: 11 Mar 2010
Last modified: 23 Jul 2022 01:49
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Author:
D.M Hyam
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