The maximum influence of wind on wave overtopping at seawalls with crest elements

Book chapter (2024)

Authors

M.R.A. van Gent Coastal Engineering - CEG , Deltares
R.J. van der Bijl , Deltares
Guido Wolters Deltares
D. Wüthrich Hydraulic Structures and Flood Risk - CEG
Davide Wüthrich Hydraulic Structures and Flood Risk - CEG
Research Group
Coastal Engineering (CEG) (TU Delft)
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Published Date

2024

Language

English

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Faculty

Civil Engineering & Geosciences

Department

Hydraulic Engineering

Research Group

Coastal Engineering

Abstract

The crest level of seawalls is often based on estimates of the amount of wave overtopping. Methods to estimate the mean overtopping discharge have been provided in several guidelines. One of the important parameters affecting wave overtopping is the wind. However, the effects of wind have not been accounted for in detail in present design guidelines although some guidance for coastal structures with crest elements is provided in literature. For onshore wind the expected wave overtopping discharge at coastal structures with a crest element can be up to a factor 5 larger than for situations without wind. In the present study the maximum influence of wind on wave overtopping at impermeable seawalls with crest elements has been studied based on physical model tests. The result of the study is a guideline to estimate the maximum influence of wind on wave overtopping at seawalls with crest elements.

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