TY - JOUR
TI - Three-dimensional modelling of suspended sediment transport in the far wake of tidal stream turbines
AU - Li, X
AU - Li, M
AU - Amoudry, L
AU - Ramírez-Mendoza, R
AU - Thorne, P
AU - Song, Q
AU - Zheng, P
AU - Simmons, S
AU - Jordan, L-B
AU - McLelland, S
T2 - Renewable Energy
AB - 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.
DA - 2020/05//
PY - 2020
VL - 151
SP - 956
EP - 965
UR - https://www.sciencedirect.com/science/article/pii/S0960148119317896
DO - 10.1016/j.renene.2019.11.096
LA - English
KW - Marine Energy
KW - Tidal
KW - Changes in Flow
KW - Physical Environment
KW - Sediment Transport
ER -