A NUMERICAL STUDY ON THE EFFECT OF BEACH NOURISHMENT ON WAVE OVERTOPPING IN SHALLOW FORESHORES

Tomohiro Suzuki; Toon Verwaest; William Veale; Koen Trouw; Marcel Zijlema

doi:10.9753/icce.v33.waves.50

No. 33 (2012), Waves

No. 33 (2012)

A NUMERICAL STUDY ON THE EFFECT OF BEACH NOURISHMENT ON WAVE OVERTOPPING IN SHALLOW FORESHORES

Waves

https://doi.org/10.9753/icce.v33.waves.50

Published 2012-10-25

Tomohiro Suzuki⁺⁻
Toon Verwaest
William Veale
Koen Trouw
Marcel Zijlema

Tomohiro Suzuki

Flanders Hydraulics Research

Toon Verwaest

William Veale

Koen Trouw

Marcel Zijlema

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Keywords

SWASH model
beach nourishment
wave overtopping
infragravity waves
bores
shallow foreshores

How to Cite

Suzuki, T., Verwaest, T., Veale, W., Trouw, K., & Zijlema, M. (2012). A NUMERICAL STUDY ON THE EFFECT OF BEACH NOURISHMENT ON WAVE OVERTOPPING IN SHALLOW FORESHORES. Coastal Engineering Proceedings, 1(33), waves.50. https://doi.org/10.9753/icce.v33.waves.50

Abstract

In this paper, the effect of beach nourishment on wave overtopping in shallow foreshores is investigated with the non-hydrostatic wave-flow model SWASH. Firstly, the applicability of SWASH to model wave overtopping is tested by comparing results with a physical model setup with different storm wall heights on top of an impermeable sea dike. The numerical results show good agreement with the physical model. After validation, sensitivity analysis of the effect of beach nourishment on wave overtopping is conducted by changing bottom configurations with the SWASH model. From the sensitivity analysis, it becomes clear that wave overtopping discharge in shallow foreshores is characterized by the bores generated in surf zone due to wave breaking. To reduce wave overtopping discharge in shallow foreshore, it is important to reduce the horizontal momentum of the bores.

https://doi.org/10.9753/icce.v33.waves.50

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References

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A NUMERICAL STUDY ON THE EFFECT OF BEACH NOURISHMENT ON WAVE OVERTOPPING IN SHALLOW FORESHORES

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