Modelling wave overtopping for flood defense reliability

Jord Jurriaan Warmink, Vera Maria van Bergeijk, Weiqiu Chen, Juan Pablo Aguilar Lopez, Anouk Bomers, Suzanne J.M.H. Hulscher

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Abstract

Failure of dike covers due to wave overtopping erosion may initiate dike breach. Surface transitions in the dike cover, such as cure points, height difference, roughness difference and objects are often weak spots, but the effects of such transitions on the wave overtopping discharge and associated location and evolution of dike cover erosion are highly uncertain. Dike cover erosion is dominated by the turbulence-dominated shear stress at the jet front. Therefore, a detailed numerical Finite Element model was developed. In this paper the preliminary results of the model of Aguilar-Lopez (2016) and Bomers et al. (2018) are briefly presented. At the University of Twente, two PhD students recently started on the challenge of quantifying the effect of transitions in grass covered dikes on dike erosion. In this paper, we present their research plans.
Original languageEnglish
Pages1-5
Publication statusPublished - 10 Sept 2018
Event3rd International Conference on Protection against Overtopping 2018 - Grange-over-Sands, United Kingdom
Duration: 6 Jun 20188 Jun 2018
Conference number: 3
http://protections2018.org/Protections2018/homepage

Conference

Conference3rd International Conference on Protection against Overtopping 2018
Abbreviated titleProtections 2018
Country/TerritoryUnited Kingdom
CityGrange-over-Sands
Period6/06/188/06/18
Internet address

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