Conference Proceedings
Three dimensional velocity field underneath a breaking rogue wave
A Alberello, C Pakodzi, F Nelli, EM Bitner-Gregersen, A Toffoli
Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering OMAE | AMER SOC MECHANICAL ENGINEERS | Published : 2017
Abstract
Wave breaking has large impact on stresses and loading on marine structures, but it is not yet accounted for in the design process. A numerical investigation is here presented to fully assess the three-dimensional velocity field underneath a breaking wave. The breaking onset is achieved by modulating an initial monochromatic wave with infinitesimal sideband perturbations. The latter triggers a nonlinear energy transfer, which allows one individual waves to grow and break once the steepness has overcome a specific threshold. Numerical simulations of the Navier-Stokes equations are carried out by means of the open source CFD code OpenFOAM. To speed up the simulation process, the nonlinear evol..
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Funding Acknowledgements
A.A. and F.N. are supported by the Swinburne University of Technology Postgraduate Research Award (SUPRA). This work was performed on the gSTAR national facility at Swinburne University of Technology. gSTAR is funded by Swinburne and the Australian Governments Education Investment Fund.