Mathematical and Numerical Modelling of Wave Impact on Wave-Energy Buoys
We report on the mathematical and numerical modelling of amplified rogue waves driving a wave-energy device in a contraction. This wave-energy device consists of a floating buoy attached to an AC-induction motor and constrained to move upward only in a contraction, for which we have realised a worki...
| Published in: | Volume 7: Ocean Engineering |
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| Main Authors: | , |
| Format: | Book Part |
| Language: | English |
| Published: |
ASME
2016
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| Subjects: | |
| Online Access: | https://ueaeprints.uea.ac.uk/id/eprint/62061/ https://ueaeprints.uea.ac.uk/id/eprint/62061/1/Accepted_manuscript.pdf https://doi.org/10.1115/OMAE2016-54937 |
| Summary: | We report on the mathematical and numerical modelling of amplified rogue waves driving a wave-energy device in a contraction. This wave-energy device consists of a floating buoy attached to an AC-induction motor and constrained to move upward only in a contraction, for which we have realised a working scale-model. A coupled Hamiltonian system is derived for the dynamics of water waves and moving wave-energy buoys. This nonlinear model consists of the classical water wave equations for the free surface deviation and velocity potential, coupled to a set of equations describing the dynamics of a wave-energy buoy. As a stepping stone, the model is solved numerically for the case of linear shallow water waves causing the motion of a simple buoy structure with V-shaped cross-sections, using a variational (dis)continuous Galerkin finite element method. |
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