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Nonlinear deterministic sea wave prediction using instantaneous velocity profiles

Abstract : Optimizing the production of wave energy converters using Model Predictive Control (MPC) requires a real-time, deterministic prediction of the waves arriving at the device. This study presents a new method for deterministic sea wave prediction, using the horizontal velocity profile over the water column as a boundary condition for a dedicated nonlinear wave model. However, direct measurement of the horizontal velocity component over the whole vertical column is hardly achievable at sea. A method to reconstruct this profile from measurement devices currently at use, such as ADCPs, is thus presented and evaluated. The performance of the prediction method itself is then tested using synthetic numerical data. First, the reconstruction of the horizontal velocity profile as a boundary condition is evaluated. Then, the whole prediction procedure is assessed. In both these stages, the simulations are based on synthetic numerical data and the outcomes are compared with numerical reference solutions. The results show that the method is promising enough to justify further investigation through wave tank experiments.
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https://hal.archives-ouvertes.fr/hal-03124383
Contributor : Guillaume Ducrozet Connect in order to contact the contributor
Submitted on : Tuesday, May 25, 2021 - 7:01:31 PM
Last modification on : Wednesday, April 27, 2022 - 5:04:35 AM
Long-term archiving on: : Thursday, August 26, 2021 - 8:54:16 PM

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Marion Huchet, Aurélien Babarit, Guillaume Ducrozet, Jean-Christophe Gilloteaux, Pierre Ferrant. Nonlinear deterministic sea wave prediction using instantaneous velocity profiles. Ocean Engineering, Elsevier, 2021, 220, pp.108492. ⟨10.1016/j.oceaneng.2020.108492⟩. ⟨hal-03124383⟩

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