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Publications
Gadelho, J.F.M. and Guedes Soares, C. (2023), Pneumatic performance improvement of an onshore dual chamber OWC using a CFD model, Trends in Renewable Energies Offshore, Guedes Soares, C. (Ed.), Taylor and Francis Group, London, UK, pp. 311-318
A CFD model developed on the OpenFOAM environment is used to study the key physical processes inside a Dual Chamber Oscillating Water Column (DCOWC) device installed onshore. The air pressures and free surface elevations inside the chambers, as well as the vertical velocities inside the holes are evaluated. The pneumatic performance of the device is evaluated for three damping conditions. Results show that the present CFD model is a powerful tool to help on the design of OWCs. It can generate, propagate water waves, and reproduce with high accuracy the key physical processes inside the DCOWC chambers. Results show that the pneumatic efficiency improves 300%, from 20% up to 60%, by imposing a higher damping condition in both chambers.
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