The combination of highly turbulent flow and wave-induced currents within a tidal stream leads to continuous load variations on the blades of tidal turbines and limits their survivability and fatigue endurance. We propose the use of flexible turbine blades to decrease the amplitude of the load fluctuations and thus increase their durability. We developed a numerical model of a turbine blade; we show the extreme flow variations that it experiences and we show that a blade with a flexible trailing edge can result in reduced amplitude load fluctuations. Preliminary results of ongoing complementary experiments have confirmed the predicted trends.
|Publication status||Published - 23 Apr 2015|
|Event||4th Oxford Tidal Energy Workshop - Oxford, United Kingdom|
Duration: 23 Mar 2015 → 24 Mar 2015
|Workshop||4th Oxford Tidal Energy Workshop|
|Period||23/03/15 → 24/03/15|
- flexible blades
- tidal turbines