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A Comparison of Numerical Modelling Techniques for Tidal Stream Turbine Analysis

Zienkiewicz Centre for Computational Engineering, Swansea University, Swansea SA2 8PP, UK
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Academic Editor: John Ringwood
Energies 2015, 8(8), 7833-7853; https://doi.org/10.3390/en8087833
Received: 2 April 2015 / Revised: 24 July 2015 / Accepted: 24 July 2015 / Published: 30 July 2015
To fully understand the performance of tidal stream turbines for the development of ocean renewable energy, a range of computational models is required. We review and compare results from several models of horizontal axis turbines at different spatial scales. Models under review include blade element momentum theory (BEMT), blade element actuator disk, Reynolds averaged Navier Stokes (RANS) CFD (BEM-CFD), blade-resolved moving reference frame and coastal models based on the shallow water equations. To evaluate the BEMT, a comparison is made to experiments with three different rotors. We demonstrate that, apart from the near-field wake, there are similarities in the results between the BEM-CFD approach and a coastal area model using a simplified turbine fence at a headland case. View Full-Text
Keywords: tidal stream turbines; CFD; BEMT; BEM-CFD; coastal/shelf scale; comparison; validation tidal stream turbines; CFD; BEMT; BEM-CFD; coastal/shelf scale; comparison; validation
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Masters, I.; Williams, A.; Croft, T.N.; Togneri, M.; Edmunds, M.; Zangiabadi, E.; Fairley, I.; Karunarathna, H. A Comparison of Numerical Modelling Techniques for Tidal Stream Turbine Analysis. Energies 2015, 8, 7833-7853.

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