Yes, Inform me when...

Numerical modelling of horizontal axis marine current turbine arrays

Date: November 05, 2013 at 15:53 GMT

This paper presents the last developments of a three-dimensional numerical tool used to model both the performance and the wake of marine current turbines. The numerical tool developed at the LOMC laboratory (Le Havre, France) consists of a Lagrangian mesh-free particle method (Vortex Method), in which vortical particles are emitted at the trailing edge of the blades and convected in the wake of the turbines. Results on a single turbine are presented and compared to experimental data. In order to point out the interaction effects between turbines, computations on multiple devices are also carried out.
A focus on a twin devices configuration is presented, for which the turbines are aligned with the flow direction and comparable experimental data are available. The last results obtained on this configuration are shown with a particular attention on how the efficiency and the wake of the turbines can be influenced by the interaction effects. These results will be helpful for the future modelling of more complex turbine arrays.
Keywords: Marine current turbines, 

The OES is organised under the auspices of the International Energy Agency (IEA) but is functionally and legally autonomous. Views, findings and publications of the OES do not necessarily represent the views or policies of the IEA Secretariat or its individual member countries.