NUMERICAL ANALYSIS OF TSUNAMI PROPAGATION ON WIDE REEF PLATFORM

Takahito Mikami; Tomoya Shibayama

doi:10.9753/icce.v33.posters.25

No. 33 (2012), Posters

No. 33 (2012)

NUMERICAL ANALYSIS OF TSUNAMI PROPAGATION ON WIDE REEF PLATFORM

Posters

https://doi.org/10.9753/icce.v33.posters.25

Published 2012-10-25

Takahito Mikami⁺⁻
Tomoya Shibayama⁺⁻

Takahito Mikami

Waseda University

Tomoya Shibayama

Waseda University

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Keywords

tsunami
reef
Large Eddy Simulation

How to Cite

Mikami, T., & Shibayama, T. (2012). NUMERICAL ANALYSIS OF TSUNAMI PROPAGATION ON WIDE REEF PLATFORM. Coastal Engineering Proceedings, 1(33), posters.25. https://doi.org/10.9753/icce.v33.posters.25

Abstract

During the 2009 Samoan Islands Tsunami, the wide coral reef platform in front of the islands affected the approaching tsunami behavior. This research aims to understand the characteristics of a tsunami propagating over a reef platform by using a turbulence model. A Large Eddy Simulation (LES) model was used to simulate wave breaking and energy dissipation. The results of numerical simulations by using LES model were shown to reproduce well the results of the field survey in the 2009 Samoan Islands Tsunami. The present method may also apply to other countries which have coral reefs and contribute to regional tsunami mitigation strategies. It is important to understand what is the phenomenon that people in coastal areas actually experience as well as the height and arrival time of a tsunami.

https://doi.org/10.9753/icce.v33.posters.25

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References

Fernando, H. J. S. et al. (2005): Coral poaching worsens tsunami destruction in Sri Lanka, Eos Trans., AGU, 86(33), pp.301, 304.

Fujima, K. et al. (2006): Survey results of the Indian Ocean Tsunami in the Maldives, Coastal Engineering Journal, JSCE, 48(2), pp.81-97.http://dx.doi.org/10.1142/S0578563406001337

Iwase et al. (2001): Numerical simulation and hydraulic experiment on soliton fission and wave breaking, Proc. Coastal Engineering, JSCE, 48, pp.306-310. (in Japanese)http://dx.doi.org/10.2208/proce1989.48.306

Mikami, T. et al. (2011): Field survey and analysis of tsunami disaster in the Samoan Islands 2009, Proc. 6th Int. Conf. Coastal Structures, in press.

Tomita, T. et al. (2008): Report of field survey on 2007 Solomon Islands Tsunami, Technical Note of PARI, No.1179, 41p. (in Japanese with English abstract)

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NUMERICAL ANALYSIS OF TSUNAMI PROPAGATION ON WIDE REEF PLATFORM

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