Abstract
Both scientific and industrial communities have a growing interest for marine renewable energies. There is a wide variety of technologies in this domain, with different degrees of maturity. Our work focuses on two models of a vertical axis Darrieus tidal turbine with the objective of studying the effect of fluid-structure interactions on their performances. The first model comprised four straight rigid blades maintained by circular flanges on both ends of the rotor and the second model is equipped with free-ended interchangeable blades attached to a single flange. Two configuration of the second model mounted with either rigid or flexible blades are used, first for comparison with the dual-flange turbine, then in order to address the effect of fluid-structure interactions on the turbine performances.
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