A numerical structural analysis of ducted, high-solidity, fibre-composite tidal turbine rotor configurations in real flow conditions

Borg, Mitchell G. and Xiao, Qing and Allsop, Steven and Incecik, Atilla and Peyrard, Christophe (2021) A numerical structural analysis of ducted, high-solidity, fibre-composite tidal turbine rotor configurations in real flow conditions. Ocean Engineering, 233. 109087. ISSN 0029-8018

[thumbnail of Borg-etal-OE-2021-A-numerical-structural-analysis-of-ducted-high-solidity-fibre-composite] Text (Borg-etal-OE-2021-A-numerical-structural-analysis-of-ducted-high-solidity-fibre-composite)
Borg_etal_OE_2021_A_numerical_structural_analysis_of_ducted_high_solidity_fibre_composite.pdf
Accepted Author Manuscript
Restricted to Repository staff only until 31 May 2022.
License: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 logo

Download (4MB) | Request a copy from the Strathclyde author

    Abstract

    Establishing a design and material evaluation of unique tidal turbine rotors in true hydrodynamic conditions by means of a numerical structural analysis has presented inadequacies in implementing spatial and temporal loading along the blade surfaces. This study puts forward a structural performance investigation of true-scale, ducted, high-solidity, fibre-composite tidal turbine rotor configurations in aligned and yawed flows by utilising outputs from unsteady blade-resolved computational fluid dynamic models as boundary condition loads within a finite-element numerical model. In implementation of the partitioned-approach fluid–structure interaction procedure, three distinct internal blade designs were analysed. Investigating criteria related to structural deformation and induced strains, hydrostatic & hydrodynamic analyses are put forward in representation of the rotor within the flow conditions at the installation depth. The resultant axial deflections for the proposed designs describe a maximum deflection-to-bladespan ratio of 0.04, inducing a maximum strain of 0.9%. A fatigue response analysis is undertaken to acknowledge the blade material properties required to prevent temporal failure.

    ORCID iDs

    Borg, Mitchell G., Xiao, Qing ORCID logoORCID: https://orcid.org/0000-0001-8512-5299, Allsop, Steven, Incecik, Atilla and Peyrard, Christophe;