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arXiv · 2102.02275

Modelling and simulation of a wave energy converter

Edoardo Bocchi·Jiao He·Gaston Vergara-Hermosilla
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Abstract

In this work we present the mathematical model and simulations of a particular wave energy converter, the so-called oscillating water column. In this device, waves governed by the one-dimensional nonlinear shallow water equations arrive from offshore, encounter a step in the bottom and then arrive into a chamber to change the volume of the air to activate the turbine. The system is reformulated as two transmission problems: one is related to the wave motion over the stepped topography and the other one is related to the wave-structure interaction at the entrance of the chamber. We finally use the characteristic equations of Riemann invariants to obtain the discretized transmission conditions and we implement the Lax-Friedrichs scheme to get numerical solutions.

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Edoardo Bocchi, Jiao He, Gaston Vergara-Hermosilla. 2021-02-03. Modelling and simulation of a wave energy converter. https://arxiv.org/abs/2102.02275

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