Converting wave energy from fluid-elasticity interactions

Abstract eng:
Aquatic plants are known to protect coastal lines and riverbeds from erosion by damping waves and fluid flow. These flexible structures are able to absorb the energy of an incoming fluid by deforming mechanically. Although this natural phenomenon is well accepted in the literature, it is not yet well understood. Our research focuses on the mechanisms involved in these fluid-elasticity interactions in order to develop an efficient energy harvesting system. The system consists of a forest of flexible rods interacting collectively. We investigate the role of different parameters (that concern both the system characteristics and the environmental conditions) on the ability of our system to absorb energy from the flow. In these first experiments, we vary the spatial distribution of the rods, their flexural rigidity, the frequency and amplitude of incoming waves.

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