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http://dx.doi.org/10.9765/KSCOE.2021.33.6.257

Estimate of Wave Overtopping Rate on Vertical Wall Using FUNWAVE-TVD Model  

Kwak, Moon Su (Department of Civil Engineering, Myongji College)
Kobayashi, Nobuhisa (Department of Civil and Environmental Engineering, University of Delaware)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.33, no.6, 2021 , pp. 257-264 More about this Journal
Abstract
This study established a numerical model capable of calculating the wave overtopping rate of coastal structures by nonlinear irregular waves using the FUNWAVE-TVD model, a fully nonlinear Boussinesq equation model. Here, a numerical model was established by coding the mean value approach equations of EurOtop (2018) and empirical formula by Goda (2009), and adding them as subroutines of the FUNWAVE-TVD model. The verification of the model was performed by numerically calculating the wave overtopping rate of nonlinear irregular waves on vertical wall structures and comparing them with the experimental results presented in EurOtop (2018). As a result of the verification, the numerical calculation result according to the EurOtop equation of this model was very well matched with the experimental result in all relative freeboard (Rc/Hmo) range under non-impulsive wave conditions, and the numerical calculation result of empirical formula was evaluated slightly smaller than the experimental result in Rc/Hmo < 0.8 and slightly larger than the experimental result in Rc/Hmo > 0.8. The results of this model were well represented in both the exponential curve and the power curve under impulsive wave conditions. Therefore, it was confirmed that this numerical model can simulate the wave overtopping rate caused by nonlinear irregular waves in an vertical wall structure.
Keywords
fully nonlinear Boussinesq equation; irregular waves; wave overtopping rate; EurOtop manual; vertical wall structure;
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Times Cited By KSCI : 3  (Citation Analysis)
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