Numerical simulation of irregular wave overtopping against a smooth sea dike |
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Authors: | Xiao-yu Guo Ben-long Wang Hua Liu |
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Institution: | a,b,c,1 a Department of Engineering Mechanics,Shanghai Jiao Tong University,Shanghai 200240,China b Key Laboratory of Hydrodynamics of MOE,Shanghai Jiao Tong University,Shanghai 200240,China c State Key Laboratory of Ocean Engineering,Shanghai Jiao Tong University,Shanghai 200240,China |
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Abstract: | Based on the filtered Navier-Stokes equations and Smagorinsky turbulence model, a numerical wave flume is developed to investigate
the overtopping process of irregular waves over smooth sea dikes. Simulations of fully nonlinear standing wave and regular
wave’s run-up on a sea dike are carried out to validate the implementation of the numerical wave flume with wave generation
and absorbing modules. To model stationary ergodic stochastic processes, several cases with different random seeds are computed
for each specified irregular wave spectrum. It turns out that the statistical mean overtopping discharge shows good agreement
with empirical formulas, other numerical results and experimental data. |
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Keywords: | overtopping discharge irregular wave numerical wave flume Navier-Stokes equations |
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