Journal article

Water wave transmission and energy dissipation by a floating plate in the presence of overwash

Filippo Nelli, Luke G Bennetts, David M Skene, Alessandro Toffoli

Journal of Fluid Mechanics | Cambridge University Press (CUP) | Published : 2020


A numerical model, based on the two-phase incompressible Navier–Stokes equations, is used to study transmission of regular water waves by a thin floating plate in two dimensions. The model is shown to capture the phenomenon of waves overwashing the plate, and the generation of turbulent bores on the upper plate surface. It is validated against laboratory experimental measurements, in terms of the transmitted wave field and overwash depths, for a set of incident wave periods and steepness values. Corresponding simulations are performed for a thick plate that does not experience overwash, which are validated using experiments where an edge barrier prevents thin-plate overwash. The model accura..

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