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Modeling and optimization of a vortex induced vibration fluid kinetic energy harvester

: Wen, Q.; Schulze, R.; Billep, D.; Otto, T.; Gessner, T.

Postprint (PDF; )

Procedia Engineering 87 (2014), S.779-782
ISSN: 1877-7058
European Conference on Solid-State Transducers (Eurosensors) <28, 2014, Brescia>
Zeitschriftenaufsatz, Konferenzbeitrag, Elektronische Publikation
Fraunhofer ENAS ()

In this contribution a fluid kinetic energy harvester excited by vortex induced vibration (VIV) is proposed. In terms of describing and verifying the interaction between the structural and the fluidic domain, a two-way Fluid Structure Interaction (FSI) simulation has been carried out. In order to optimize the harvester, different designs have been investigated to improve the performance. Subsequently, a demonstrator setup for testing the manufactured harvester has been assembled. The experimental results were compared with that of FSI-simulations. By applying the optimized harvester structure, the vortex induced pressure could be enhanced 4 times compared to convetional structures. The results show that the VIV energy harvester deliver 1 µW power output under 2 m/s air flows.