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Natural Hazards and Earth System Sciences An interactive open-access journal of the European Geosciences Union
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Volume 11, issue 2
Nat. Hazards Earth Syst. Sci., 11, 419–429, 2011
https://doi.org/10.5194/nhess-11-419-2011
© Author(s) 2011. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue: Extreme and rogue waves

Nat. Hazards Earth Syst. Sci., 11, 419–429, 2011
https://doi.org/10.5194/nhess-11-419-2011
© Author(s) 2011. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 11 Feb 2011

Research article | 11 Feb 2011

Numerical modelling of extreme waves by Smoothed Particle Hydrodynamics

M. H. Dao1, H. Xu1, E. S. Chan2, and P. Tkalich1 M. H. Dao et al.
  • 1Tropical Marine Science Institute, National University of Singapore, Singapore
  • 2Department of Civil Engineering, National University of Singapore, Singapore

Abstract. The impact of extreme/rogue waves can lead to serious damage of vessels as well as marine and coastal structures. Such extreme waves in deep water are characterized by steep wave fronts and an energetic wave crest. The process of wave breaking is highly complex and, apart from the general knowledge that impact loadings are highly impulsive, the dynamics of the breaking and impact are still poorly understood. Using an advanced numerical method, the Smoothed Particle Hydrodynamics enhanced with parallel computing is able to reproduce well the extreme waves and their breaking process. Once the waves and their breaking process are modelled successfully, the dynamics of the breaking and the characteristics of their impact on offshore structures could be studied. The computational methodology and numerical results are presented in this paper.

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