Coastal Research Centre (FZK) Research Projects in GWK
waveSTEPS - Wave run-up and overtopping on a stepped revetment

waveSTEPS - Wave run-up and overtopping on a stepped revetment

© Forschungszentrum Küste
Led by:  Prof. Dr.-Ing. Torsten Schlurmann, Dr.-Ing. Sven Liebisch
Team:  M.Eng. Talia Schoonees, Dr.-Ing. Nils B. Kerpen
Year:  2018
Funding:  Bundesministerium für Bildung und Forschungs (BMBF)
Duration:  01.08.2016 - 31.07.2019
Remarks:  January 2018 - March 2018

waveSTEPS - Wave run-up and overtopping on a stepped revetment

The objective of the project is to determine the wave run-up and wave overtopping of a stepped revetment. Subsequently the research aims to derive design-relevant conclusions for improving the dimensioning and structural design of stepped revetments.

In Work Package 1 (WP1), the system behaviour of the interaction of regular waves and sea states with stepped revetments in a wave flume at the Ludwig Franzius Institute of the Leibniz University Hannover is analysed. Input variables are scaled according to Froude's model law. Geometric and hydraulic boundary conditions are varied in order to obtain general statements about the system behaviour (run-up, overtopping, pressure loads, reflection coefficient).

In WP2, the dynamic flow processes that takes place during the wave run-up over a stepped revetment are simulated in a stationary flow channel at the FH Aachen. This provides the opportunity to systematically study the formation of shear layers between the main flow and the water-filled step niches and the associated energy dissipation during a single wave run-up and run-down process.

Large-scale experiments (scale 1:1) are carried out in the Large Wave Flume of the Forschungszentrum Küste (FZK). By performing the large-scale experiments, the scaling effects for various hydraulic processes can be determined, so that based on these experiments, a re-iteration of the results of WP1 and WP2 can be done.