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Open AccessArticle

Numerical and Experimental Investigation of Wave Overtopping of Barriers

1
Department of Civil, Constructional and Environmental Engineering, “Sapienza” University of Rome, Via Eudossiana 18, 00184 Roma (RM), Italy
2
Department of Civil and Environmental Engineering and Architecture, University of Cagliari, Via Marengo 2, 09123 Cagliari (CA), Italy
*
Author to whom correspondence should be addressed.
Water 2020, 12(2), 451; https://doi.org/10.3390/w12020451
Received: 3 December 2019 / Revised: 16 January 2020 / Accepted: 29 January 2020 / Published: 8 February 2020
(This article belongs to the Special Issue Numerical Modelling of Wave Fields and Currents in Coastal Area)
We present a study of wave overtopping of barriers. The phenomenon of the wave overtopping over emerged structures is reproduced both numerically and experimentally. The numerical simulations are carried out by a numerical scheme for three-dimensional free-surface flows, which is based on the solution of the Navier–Stokes equations in a novel integral form on a time-dependent coordinate system. In the adopted numerical scheme, a novel wet–dry technique, based on the exact solution of the Riemann problem over the dry bed, is proposed. The experimental tests are carried out by adopting a nonintrusive and continuous-in-space image-analysis technique, which is able to properly identify the free surface even in very shallow waters or breaking waves. A comparison between numerical and experimental results, for several wave and water-depth conditions, is shown. View Full-Text
Keywords: wave overtopping; free-surface flows; numerical simulations; wet–dry technique; experimental tests; time-dependent coordinates; image analysis wave overtopping; free-surface flows; numerical simulations; wet–dry technique; experimental tests; time-dependent coordinates; image analysis
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MDPI and ACS Style

Cannata, G.; Tamburrino, M.; Ferrari, S.; Badas, M.G.; Querzoli, G. Numerical and Experimental Investigation of Wave Overtopping of Barriers. Water 2020, 12, 451.

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