run-up; stepped revetment; roughness; energy dissipation
Abstract :
[en] To understand the processes and energy dissipation performance caused by turbulence during the wave run-up over a stepped revetment, hydraulic model tests with steady flow conditions are conducted and correlated with unsteady flow conditions of the wave run-up within a short time frame. Under irregular waves, the run-up reduction over a stepped revetment is dependent on the Iribarren number and decreases for decreasing Iribarren numbers. Velocity gradients are found to be similar in a steady and unsteady flow regime near the pseudo-bottom.
Research Center/Unit :
UEE - Urban and Environmental Engineering - ULiège
Disciplines :
Civil engineering
Author, co-author :
Kerpen, Nils B.; Leibniz Universität Hannover > Ludwig-Franzius-Institute
Bung, Daniel B.; FH Aachen > Hydraulic Engineering Section
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