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Power and thrust measurements of marine current turbines under various hydrodynamic flow conditions in a cavitation tunnel and a towing tank

Power and thrust measurements of marine current turbines under various hydrodynamic flow conditions in a cavitation tunnel and a towing tank
Power and thrust measurements of marine current turbines under various hydrodynamic flow conditions in a cavitation tunnel and a towing tank
The results of cavitation tunnel and tank tests on an 800 mm diameter model of a marine current turbine (MCT) are presented. The tests were carried out in a 2.4 m×1.2 m cavitation tunnel and the 60 m towing tank. Results for power and thrust coefficients are presented for a range of tip speed ratio and pitch settings for various conditions. The results of this investigation provided an insight into the operation of a singe turbine in straight or yawed flow, the effect on performance of changes in the tip immersion of the rotor, the interference between twin rotors and the likely areas of cavitation inception. In addition, the analysed results presented provide useful information for the hydrodynamic design of MCTs and detailed data for the validation of numerical models.
tidal stream, marine currents, marine current turbines, tidal energy, ocean energy, turbine design
0960-1481
407-426
Bahaj, A.S.
a64074cc-2b6e-43df-adac-a8437e7f1b37
Molland, A.F.
917272d0-ada8-4b1b-8191-1611875ef9ca
Chaplin, J.R.
d5ed2ba9-df16-4a19-ab9d-32da7883309f
Batten, W.M.J.
8a6a68c7-b614-4f62-9d56-54eb38a45a94
Bahaj, A.S.
a64074cc-2b6e-43df-adac-a8437e7f1b37
Molland, A.F.
917272d0-ada8-4b1b-8191-1611875ef9ca
Chaplin, J.R.
d5ed2ba9-df16-4a19-ab9d-32da7883309f
Batten, W.M.J.
8a6a68c7-b614-4f62-9d56-54eb38a45a94

Bahaj, A.S., Molland, A.F., Chaplin, J.R. and Batten, W.M.J. (2007) Power and thrust measurements of marine current turbines under various hydrodynamic flow conditions in a cavitation tunnel and a towing tank. Renewable Energy, 32 (3), 407-426. (doi:10.1016/j.renene.2006.01.012).

Record type: Article

Abstract

The results of cavitation tunnel and tank tests on an 800 mm diameter model of a marine current turbine (MCT) are presented. The tests were carried out in a 2.4 m×1.2 m cavitation tunnel and the 60 m towing tank. Results for power and thrust coefficients are presented for a range of tip speed ratio and pitch settings for various conditions. The results of this investigation provided an insight into the operation of a singe turbine in straight or yawed flow, the effect on performance of changes in the tip immersion of the rotor, the interference between twin rotors and the likely areas of cavitation inception. In addition, the analysed results presented provide useful information for the hydrodynamic design of MCTs and detailed data for the validation of numerical models.

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More information

Published date: 2007
Keywords: tidal stream, marine currents, marine current turbines, tidal energy, ocean energy, turbine design
Organisations: Civil Engineering & the Environment, Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 188933
URI: https://eprints.soton.ac.uk/id/eprint/188933
ISSN: 0960-1481
PURE UUID: a20f4af6-3209-4442-8fd5-758741d5fd33
ORCID for A.S. Bahaj: ORCID iD orcid.org/0000-0002-0043-6045

Catalogue record

Date deposited: 01 Jun 2011 09:30
Last modified: 19 Jul 2019 01:25

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