MaRINET2 tidal energy round robin tests - performance comparison of a horizontal axis turbine subjected to combined wave and current conditions
Gaurier, Benoît and Ordonez-Sanchez, Stephanie and Facq, Jean-Valéry and Germain, Grégory and Johnstone, Cameron and Martinez, Rodrigo and Salvatore, Francesco and Santic, Ivan and Davey, Thomas and Old, Chris and Sellar, Brian (2020) MaRINET2 tidal energy round robin tests - performance comparison of a horizontal axis turbine subjected to combined wave and current conditions. Journal of Marine Science and Engineering, 8 (6). 463. ISSN 2077-1312 (https://doi.org/10.3390/jmse8060463)
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Abstract
This Round Robin Test program aims to establish the influence of the combined wave and current effect on the power capture and performance of a generic tidal turbine prototype. Three facilities offering similar range of experimental conditions have been selected on the basis that their dimensions along with the rotor diameter of the turbine translate into low blockage ratio conditions. The performance of the turbine shows differences between the facilities up to 25% in terms of average power coefficient, depending on the wave and current cases. To prevent the flow velocity increasing these differences, the turbine performance coefficients have been systematically normalized using a time-average disc-integrated velocity, accounting for vertical gradients over the turbine swept area. Differences linked to blockage effects and turbulence characteristics between facilities are both responsible for 5 to 10% of the power coefficient gaps. The intrinsic differences between the tanks play a significant role as well. A first attempt is given to show how the wave-current interaction effects can be responsible for differences in the turbine performance. In these tanks, the simultaneous generation of wave and current is a key part often producing disruptions in both of these flow characteristics.
ORCID iDs
Gaurier, Benoît, Ordonez-Sanchez, Stephanie ORCID: https://orcid.org/0000-0002-7253-6299, Facq, Jean-Valéry, Germain, Grégory, Johnstone, Cameron ORCID: https://orcid.org/0000-0001-5171-1230, Martinez, Rodrigo, Salvatore, Francesco, Santic, Ivan, Davey, Thomas, Old, Chris and Sellar, Brian;-
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Item type: Article ID code: 72976 Dates: DateEvent24 June 2020Published20 June 2020Accepted25 May 2020SubmittedSubjects: Technology > Mechanical engineering and machinery Department: Faculty of Engineering > Mechanical and Aerospace Engineering Depositing user: Pure Administrator Date deposited: 01 Jul 2020 08:58 Last modified: 04 Sep 2024 01:07 URI: https://strathprints.strath.ac.uk/id/eprint/72976