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Three-dimensional modelling of suspended sediment transport in the far wake of tidal stream turbines

Li, Xiaorong; Li, Ming; Amoudry, Laurant; Amoudry, Laurent O.; Ramirez-Mendoza, Rafael; Thorne, Peter; Thorne, Peter D.; Song, Qingyang; Zheng, Peng; Simmons, Stephen; Jordan, Laura Beth; McLelland, Stuart J.

Authors

Xiaorong Li

Ming Li

Laurant Amoudry

Laurent O. Amoudry

Rafael Ramirez-Mendoza

Peter Thorne

Peter D. Thorne

Qingyang Song

Peng Zheng

Laura Beth Jordan

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Dr Stuart McLelland S.J.McLelland@hull.ac.uk
Deputy Director of the Energy and Environment Institute



Abstract

A three-dimensional tidal turbine simulation based on an oceanographic numerical model has been tested for suspended sediment calculation, particularly in the wake of a standalone tidal turbine. The results suggest a need for further improvement of the model in order to obtain correct predictions of suspension strength of the wake and suspended sediment concentration under the influence of a turbine (compared to measured data). Due to the wide use of FVCOM in coastal applications where turbines are commonly installed, it proves necessary to address this issue. Two approaches with respect to modifying bed shear stress and turbulent mixing calculations in the presence of a turbine are proposed and tested in this research. Using data collected in the laboratory as reference, the turbulent mixing enhancement approach is shown to be effective. A series of tests are carried out to identify the impact of the turbine on suspended sediment transport in its vicinity. The results suggest that the impact is highly dependent upon the sediment grain size.

Journal Article Type Article
Publication Date Jan 1, 2020
Journal Renewable Energy
Print ISSN 0960-1481
Electronic ISSN 1879-0682
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 151
Pages 956-965
APA6 Citation Li, X., Li, M., Amoudry, L. O., Ramirez-Mendoza, R., Thorne, P. D., Song, Q., …McLelland, S. J. (2020). Three-dimensional modelling of suspended sediment transport in the far wake of tidal stream turbines. Renewable energy, 151, 956-965. https://doi.org/10.1016/j.renene.2019.11.096
DOI https://doi.org/10.1016/j.renene.2019.11.096
Keywords Tidal stream energy, Three-dimensional modelling, Suspended sediment transport; Mixing enhancement; Additional shear stress

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