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Abstract
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In this paper a space-averaged Navier–Stokes approach was deployed to
simulate the wave propagation over coastal structures. The developed model is
based on the smoothed particle hydrodynamic (SPH) method which is a pure
Lagrangian approach and can handle large deformations of the free surface
with high accuracy. In this study, the large eddy simulation (LES) turbulent
model was coupled with the weakly compressible version of the smoothed
particle hydrodynamics (WCSPH) method to simulate the wave propagation
over coastal structures. The WCSPH model was employed to simulate the
periodic wave propagation over impermeable trapezoidal sea wall and
submerged breakwater. The numerical model results were validated against
the experimental and numerical data found in the literatures and some
relatively good agreements were observed. Afterwards, solitary wave
propagation over impermeable trapezoidal sea wall on a sloped bed was
carried out and the results of numerical simulations were compared both
qualitatively and quantitatively with experimental data of Hsiao and Lin
(2010). The results of this study show that WCSPH method provides a useful
tool to investigate the wave propagation over coastal structures.
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