Comparison of numerical models for wave overtopping and impact on a sea wall

Dieter Vanneste, Corrado Altomare, Tomohiro Suzuki, Peter Troch, Toon Verwaest

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

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.

Original languageEnglish (US)
Title of host publicationProceedings of the 34th International Conference on Coastal Engineering, ICCE 2014
EditorsPatrick Lynett
PublisherAmerican Society of Civil Engineers (ASCE)
ISBN (Electronic)9780989661126
StatePublished - Jan 1 2014
Externally publishedYes
Event34th International Conference on Coastal Engineering, ICCE 2014 - Seoul, Korea, Republic of
Duration: Jun 15 2014Jun 20 2014

Publication series

NameProceedings of the Coastal Engineering Conference
Volume2014-January
ISSN (Print)0161-3782

Other

Other34th International Conference on Coastal Engineering, ICCE 2014
CountryKorea, Republic of
CitySeoul
Period6/15/146/20/14

Keywords

  • Numerical model
  • Sea wall
  • Validation
  • Wave flume experiment
  • Wave impact
  • Wave overtopping

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Ocean Engineering
  • Oceanography

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  • Cite this

    Vanneste, D., Altomare, C., Suzuki, T., Troch, P., & Verwaest, T. (2014). Comparison of numerical models for wave overtopping and impact on a sea wall. In P. Lynett (Ed.), Proceedings of the 34th International Conference on Coastal Engineering, ICCE 2014 (Proceedings of the Coastal Engineering Conference; Vol. 2014-January). American Society of Civil Engineers (ASCE).