HYDRODYNAMIC EFFICIENCY AND LOADING OF A TSUNAMI-FLOODING BARRIER (TFB)

Hisham Elsafti; Hocine Oumeraci; Hans Scheel

doi:10.9753/icce.v35.structures.23

No. 35 (2016), Coastal Structures

No. 35 (2016)

HYDRODYNAMIC EFFICIENCY AND LOADING OF A TSUNAMI-FLOODING BARRIER (TFB)

Coastal Structures

https://doi.org/10.9753/icce.v35.structures.23

Published 2017-06-23

Hisham Elsafti⁺⁻
Hocine Oumeraci⁺⁻
Hans Scheel⁺⁻

Hisham Elsafti

Leichtweiss-Institute, TU Braunschweig

Hocine Oumeraci

Professor, Dept. of Hydromechanics and Coastal Engineering, Leichtweiss-Institute for Hydraulic Engineering and Water Resources, TU Braunschweig, Germany. E-mail: h.oumeraci@tu-braunschweig.de

Hans Scheel

Professor and head of Scheel Consulting, Switzerland. E-mail: hans.scheel@bluewin.ch

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Keywords

Tsunami
barrier
solitary waves
wave loading
deflecting parapet
surge stopper

How to Cite

Elsafti, H., Oumeraci, H., & Scheel, H. (2017). HYDRODYNAMIC EFFICIENCY AND LOADING OF A TSUNAMI-FLOODING BARRIER (TFB). Coastal Engineering Proceedings, 1(35), structures.23. https://doi.org/10.9753/icce.v35.structures.23

Abstract

The Tsunami-Flooding Barrier (TFB) is an impermeable vertical structure proposed at relatively large water depths, at which it is theorised that a tsunami will reach the structure before turning into a bore. The proposed hypothesis is tested in this study by means of a validated Computational Fluid Dynamics (CFD) model. The hydrodynamic efficiency of the impermeable TFB structure is confirmed and the effect of different aspects on the hydrodynamic efficiency of the structure are studied. These aspects include water depth, free board, surface roughness and the consideration of a deflecting parapet (named here as a surge stopper). Further, a new method is developed for calculating the tsunami-like solitary wave run-up and loads on the structure. The method is then compared to the Goda method for calculating storm wave loads on vertical impermeable structures. It is concluded that using the Goda method will severely underestimate the tsunami-like solitary wave load on the TFB structure.

https://doi.org/10.9753/icce.v35.structures.23

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References

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Authors retain copyright and grant the Proceedings right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this Proceedings.

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HYDRODYNAMIC EFFICIENCY AND LOADING OF A TSUNAMI-FLOODING BARRIER (TFB)

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