WAVES OVERTOPPING A WIDE-CRESTED DIKE

Toon Verwaest; Philippe Vanpoucke; Marc Willems; Tom De Mulder

doi:10.9753/icce.v32.structures.7

No. 32 (2010), Coastal Structures

No. 32 (2010)

WAVES OVERTOPPING A WIDE-CRESTED DIKE

Coastal Structures

https://doi.org/10.9753/icce.v32.structures.7

Published 2011-01-29

Toon Verwaest⁺⁻
Philippe Vanpoucke⁺⁻
Marc Willems⁺⁻
Tom De Mulder⁺⁻

Toon Verwaest

Flanders Hydraulics Research

Philippe Vanpoucke

Ghent University

Marc Willems

Flanders Hydraulics Research

Tom De Mulder

Flanders Hydraulics Research

Proceedings of the 32nd International Conference

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Keywords

overtopping
dike
wide-crested

How to Cite

Verwaest, T., Vanpoucke, P., Willems, M., & De Mulder, T. (2011). WAVES OVERTOPPING A WIDE-CRESTED DIKE. Coastal Engineering Proceedings, 1(32), structures.7. https://doi.org/10.9753/icce.v32.structures.7

Abstract

If a coastal dike has a crest width of more than say a few meters, then wave overtopping will be significantly reduced due to the crest width, because kinetic energy can be dissipated on the crest and water on the crest can flow back towards the seaside. In coastal towns built on dune belts often a wide-crested coastal dike was constructed as both coastal protection and sea promenade. However, quantifying the effect of such a wide crest on wave overtopping is not straightforward because no empirical overtopping formulas are given in literature for this kind of configuration. Therefore physical scale model research was carried out. Also a simplified theoretical model concept was used based on an energy balance formulation of a single overtopping wave. Combining the scale model measurements with the theoretical model, a semi-empirical formula was developed and calibrated.

https://doi.org/10.9753/icce.v32.structures.7

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References

EurOtop manual. 2007. Wave Overtopping of Sea Defences and Related Structures: Assessment Manual, www.overtopping-manual.com

Gioia, G., and F.A. Bombardelli. 2002. Scaling and similarity in rough channel flows, Physical review letters, volume 88, number 1.

Schuttrumpf, H. 2001. Wellenuberlaufströmung bei Seedeichen -Experimentelle und theoretische Untersuchungen-, Technischen Universität Braunschweig, PhD thesis.

van Gent, M. 1999. Physical model investigations on coastal structures with shallow foreshores; 2D model tests with single and double-peaked wave energy spectra, WL Delft Hydraulics.

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WAVES OVERTOPPING A WIDE-CRESTED DIKE

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