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ReDAPT - Computational Fluid Dynamics (CFD) Simulations of a Full-Scale Tidal Stream Turbine: MD1.4 Comparison Between Large-Eddy Simulations and Field Measurements


Citation Afgan, I., Ahmed, U., Apsley, D.D., Stallard, T. and Stansby, P.K. ReDAPT - Computational Fluid Dynamics (CFD) Simulations of a Full-Scale Tidal Stream Turbine: MD1.4 Comparison Between Large-Eddy Simulations and Field Measurements, ETI, 2014. https://doi.org/10.5286/UKERC.EDC.000784.
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Author(s) Afgan, I., Ahmed, U., Apsley, D.D., Stallard, T. and Stansby, P.K.
Project partner(s) University of Manchester
Publisher ETI
DOI https://doi.org/10.5286/UKERC.EDC.000784
Download MRN_MA1001_11.pdf document type
Abstract One of the key developments of the marine energy industry in the UK is the demonstration of near commercial scale devices in real sea conditions and the collection of performance and environmental data to inform permitting and licensing processes. The ETI’s ReDAPT (Reliable Data Acquisition Platform for Tidal) project saw an innovative 1MW buoyant tidal generator installed at the European Marine Energy Centre (EMEC) in Orkney in January 2013. The project demonstrated the performance of the tidal generator in different operational conditions, aiming to increase public and industry confidence in tidal turbine technologies by providing a wide range of environmental impact and performance information, as well as demonstrating a new, reliable turbine design

This document represents deliverable MD1.4 and describes the application of EDF’s open-source CFD solver Code_Saturne to large-eddy simulations (LES) of a full-scale tidal-stream turbine (TST). All simulations were performed with realistic approach-flow mean-velocity profiles. The objective of the work was to supplement this with realistic approach-flow turbulence and to extract frequency spectra of the fluctuating loads. LES was conducted with both zero inlet turbulence and with a fluctuating velocity field synthesised from the stress profiles and length scales generated by a fully-developed channel-flow simulation. Turbulence profiles were further scaled to represent field measurements more accurately. The simulations follow on from Reynolds-averaged Navier-Stokes (RANS) computations reported earlier in MD1.5, but allow a more comprehensive evaluation of fluctuating loads on the turbine
Associated Project(s) ETI-MA1001: Reliable Data Acquisition Platform for Tidal (ReDAPT)
Associated Dataset(s) EDC0000134: Tidal Energy Site Environmental Conditions Measured During the ReDAPT Tidal Project 2011-2014
Associated Publication(s)

ReDAPT - 3D Modelling of Channel Flow in the Fall of Warness - Presentation at OEE Dublin 2015

ReDAPT - Antifouling Systems for Tidal Energy Devices - Presentation at OEE Dublin 2015

ReDAPT - Development of a CFD Model of the TGL Turbine at the EMEC Site - Presentation at OEE Dublin 2015

ReDAPT - DNV GL - The New Standard for Tidal Turbines - Presentation at OEE Dublin 2015

ReDAPT - Executive Summary MD1.1 Marine Current Turbine CFD Simulation Part 1

ReDAPT - Executive Summary MD1.2 Marine Current Turbine CFD Simulation Part 2

ReDAPT - First Year of Operation Report

ReDAPT - Full-Scale Validation Study of Tidal Bladed - Presentation at OEE Dublin 2015

ReDAPT - Horizontal Axis Tidal Turbines

ReDAPT - Initial Operation Power Curve

ReDAPT - Interim Report: Turbulence Measurement and Characterisation

ReDAPT - Learning from the ReDAPT Programme - Presentation

ReDAPT - MC 9.5: Recommendations for the Specification of Tidal Turbines

ReDAPT - MD1.3 3D Computational Fluid Dynamics (CFD) Modelling of ReDAPT Tidal Turbine

ReDAPT - MD1.5 CFD Simulation of Turbulence at a Tidal Stream Site based on Field Measurements

ReDAPT - Method for Tidal Energy Conversion System CO2 Payback Calculation

ReDAPT - Modelling Sub Project and validation of engineering tools - Presentation at OEE Dublin 2015

ReDAPT Project Achievements

ReDAPT Project Dissemination Workshop OEE Conference - Dublin - Oct 2015

ReDAPT Project - Key Findings

ReDAPT - Recommendations for the Testing of Tidal Turbines

ReDAPT - ReDAPT Final report

ReDAPT - Reliable Data Acquisition Platform for Tidal (ReDAPT) Project: ME8.2 Final Experimental Design - Antifouling coatings

ReDAPT - Tidal Energy Site Characterisation at the Fall of Warness, EMEC, UK (MA1001 MD3.8)

ReDAPT - Turbine Deployments and Achievements in Operation - Presentation at OEE Dublin 2015

Reliable Data Acquisition Platform for Tidal (ReDAPT) project: Final Report ME8.5 Antifouling systems