COMPARISON OF NUMERICAL MODELS FOR WAVE OVERTOPPING AND IMPACT ON A SEA WALL

Dieter F.A. Vanneste; Corrado Altomare; Tomohiro Suzuki; Peter Troch; Toon Verwaest

doi:10.9753/icce.v34.structures.5

No. 34 (2014), Coastal Structures

No. 34 (2014)

COMPARISON OF NUMERICAL MODELS FOR WAVE OVERTOPPING AND IMPACT ON A SEA WALL

Coastal Structures

Published 2014-10-30

Dieter F.A. Vanneste⁺⁻
Corrado Altomare⁺⁻
Tomohiro Suzuki⁺⁻
Peter Troch⁺⁻
Toon Verwaest⁺⁻

Dieter F.A. Vanneste

Ghent University

Corrado Altomare

Ghent University; Flanders Hydraulics Research

Tomohiro Suzuki

Ghent University; Flanders Hydraulics Research

Peter Troch

Ghent University

Toon Verwaest

Flanders Hydraulics Research

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Keywords

numerical model
sea wall
wave overtopping
wave impact
validation
wave flume experiment

How to Cite

COMPARISON OF NUMERICAL MODELS FOR WAVE OVERTOPPING AND IMPACT ON A SEA WALL. (2014). Coastal Engineering Proceedings, 1(34), structures.5. https://doi.org/10.9753/icce.v34.structures.5

Abstract

The paper discusses three different numerical models in a study of wave overtopping and impact on a sea wall. The models used are SWASH (based on the nonlinear shallow water equations), DualSPHysics and FLOW-3D (both based on the full Navier-Stokes equations). The models are validated against experimental measurements in a setup with a quay wall and berm in front of the sea wall. The two models based on the full Navier-Stokes equations provide good estimates of the wave impact on the sea wall. Moreover, reasonable agreement with experimental values of averaged overtopping discharges was found for the full test time series simulated with FLOW-3D. Notwithstanding the SWASH model provides reasonable estimates for the wave overtopping on a simple quay wall, at a significantly lower computational cost than the other two models, it clearly underrates the overtopping discharge in the case of a combination of a quay wall, berm and sea wall. Further investigation is needed to draw conclusions on the model accuracy of SWASH in such a case.

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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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COMPARISON OF NUMERICAL MODELS FOR WAVE OVERTOPPING AND IMPACT ON A SEA WALL

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