Abstract

Wave reflection and wave run-up at rubble mound breakwaters with steep front slope were investigated in large scale model tests. The two-way dependency of wave run-up and wave reflection and the governing hydraulic parameters for wave reflection were investigated. The wave run -up height is closely related to the clapotis height in front of the breakwater. An empirical wave run-up formula that includes the reflection coefficient was developed. The wave height has little influence on the wave reflection from porous structures. An empirical wave reflection formula is proposed for rubble mound structures with steep front slope.

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