Hydrodynamic modelling of flexible tidal turbine blades
The current work is an analysis of the hydrodynamic effects of the different deformation mechanisms that affect axial-flow tidal turbines with the intention of understanding to what extent hydroelastic effects could be employed to improve the performance or to reduce the loads in rotors. For that, a...
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| Format: | Conference item |
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Technical Committee of the European Wave and Tidal Energy Conference
2019
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| _version_ | 1826260402702385152 |
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| author | Zilic De Arcos, F Vogel, C Willden, R |
| author_facet | Zilic De Arcos, F Vogel, C Willden, R |
| author_sort | Zilic De Arcos, F |
| collection | OXFORD |
| description | The current work is an analysis of the hydrodynamic effects of the different deformation mechanisms that affect axial-flow tidal turbines with the intention of understanding to what extent hydroelastic effects could be employed to improve the performance or to reduce the loads in rotors. For that, a simple hydroelastic model is employed to obtain the deformed geometries of a turbine, which are then de-coupled into edgewise, flapwise, and twist deformations. The deformation data is used to analyse, by the means of blade-resolved CFD simulations, four different cases, for which the rotor geometries were rebuilt: The originally designed rotor simulated as if it was a rigid structure; the blade with just flapwise deformation, retaining the original twist angles; only the twist deformation and; finally, the deformed rotor with all the deformation components, as obtained from the hydroelastic model. For each case, three different tip-speed ratios were analysed (4.0, 5.5 and 7.0) at a flow speed of 4.5 [m/s]. It is from these simulations that the influence of the different deformation mechanisms is quantified, as well as the relative independence and interaction of the hydrodynamic phenomena associated with them. |
| first_indexed | 2024-03-06T19:05:04Z |
| format | Conference item |
| id | oxford-uuid:14d7b359-eb55-46a9-b099-fa89af6d17db |
| institution | University of Oxford |
| last_indexed | 2024-03-06T19:05:04Z |
| publishDate | 2019 |
| publisher | Technical Committee of the European Wave and Tidal Energy Conference |
| record_format | dspace |
| spelling | oxford-uuid:14d7b359-eb55-46a9-b099-fa89af6d17db2022-03-26T10:22:09ZHydrodynamic modelling of flexible tidal turbine bladesConference itemhttp://purl.org/coar/resource_type/c_5794uuid:14d7b359-eb55-46a9-b099-fa89af6d17dbSymplectic Elements at OxfordTechnical Committee of the European Wave and Tidal Energy Conference2019Zilic De Arcos, FVogel, CWillden, RThe current work is an analysis of the hydrodynamic effects of the different deformation mechanisms that affect axial-flow tidal turbines with the intention of understanding to what extent hydroelastic effects could be employed to improve the performance or to reduce the loads in rotors. For that, a simple hydroelastic model is employed to obtain the deformed geometries of a turbine, which are then de-coupled into edgewise, flapwise, and twist deformations. The deformation data is used to analyse, by the means of blade-resolved CFD simulations, four different cases, for which the rotor geometries were rebuilt: The originally designed rotor simulated as if it was a rigid structure; the blade with just flapwise deformation, retaining the original twist angles; only the twist deformation and; finally, the deformed rotor with all the deformation components, as obtained from the hydroelastic model. For each case, three different tip-speed ratios were analysed (4.0, 5.5 and 7.0) at a flow speed of 4.5 [m/s]. It is from these simulations that the influence of the different deformation mechanisms is quantified, as well as the relative independence and interaction of the hydrodynamic phenomena associated with them. |
| spellingShingle | Zilic De Arcos, F Vogel, C Willden, R Hydrodynamic modelling of flexible tidal turbine blades |
| title | Hydrodynamic modelling of flexible tidal turbine blades |
| title_full | Hydrodynamic modelling of flexible tidal turbine blades |
| title_fullStr | Hydrodynamic modelling of flexible tidal turbine blades |
| title_full_unstemmed | Hydrodynamic modelling of flexible tidal turbine blades |
| title_short | Hydrodynamic modelling of flexible tidal turbine blades |
| title_sort | hydrodynamic modelling of flexible tidal turbine blades |
| work_keys_str_mv | AT zilicdearcosf hydrodynamicmodellingofflexibletidalturbineblades AT vogelc hydrodynamicmodellingofflexibletidalturbineblades AT willdenr hydrodynamicmodellingofflexibletidalturbineblades |