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Laboratory study on effects of submerged obstacles on tsunami wave and run-up

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Abstract

This paper presents laboratory experiments and numerical simulations of effects of submerged obstacles on tsunami-like solitary wave and its run-up. This study was carried out for the breaking and non-breaking solitary waves on 1:19.85 uniform slope which contains a submerged obstacle. New laboratory experiments are performed to describe the mitigation of tsunami amplitude and run-up under the effect of submerged obstacles. We are based on experimental results obtained to validate the numerical model. The numerical modeling using COULWAVE aims essentially to show the effect of the obstacle on the shape of solitary wave and the limit of this effect. Using a multiple nonlinear regression, we have determined a model to estimate height of run-up according to the amplitude of the wave and the obstacle peak depth.

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Acknowledgements

This work was partly supported by the laboratory LEGHYD-USTHB, Algiers. The anonymous reviewers are, also, thanked for their helpful comments.

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  1. LEGHYD, Civil Engineering Faculty, University of Sciences and Technology Houari Boumediene, BP 32, Al Alia, Babezzouar, 16111, Algiers, Algeria

    Houssam Eddine Touhami & Mohamed Cherif Khellaf

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  1. Houssam Eddine Touhami
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  2. Mohamed Cherif Khellaf
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Correspondence to Houssam Eddine Touhami.

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Touhami, H.E., Khellaf, M.C. Laboratory study on effects of submerged obstacles on tsunami wave and run-up. Nat Hazards 87, 757–771 (2017). https://doi.org/10.1007/s11069-017-2791-9

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  • DOI: https://doi.org/10.1007/s11069-017-2791-9

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