A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Wave scattering by a periodic array of porous breakwaters
Abstract This paper studies wave scattering by a periodic array of rectangular porous rubble-mound breakwaters (bars). An analytical solution is developed based on potential flow and classical porous medium theories. In the solution procedure, the periodic boundary conditions for the velocity potential and its derivative in the direction of the breakwater length are introduced, and then the problem for the whole breakwaters is reduced as the wave scattering problem corresponding to a single porous bar. The fluid domain for a single bar is divided into multiple regions. The velocity potentials in outer regions are expressed by adopting a conventional eigenfunction expansion method, whereas the velocity potentials in middle regions are obtained using a velocity potential decomposition method. The unknown expansion coefficients in the velocity potentials are determined using the matching conditions on the boundaries between adjacent regions. The analytical solution is confirmed by examining its convergence and several limiting cases for the present breakwaters. Multi-parameter analyses are performed to clarify the reflection coefficient, transmission coefficient, energy loss coefficient, and free surface amplitude near the breakwaters. Some useful results for engineering applications are presented.
Wave scattering by a periodic array of porous breakwaters
Abstract This paper studies wave scattering by a periodic array of rectangular porous rubble-mound breakwaters (bars). An analytical solution is developed based on potential flow and classical porous medium theories. In the solution procedure, the periodic boundary conditions for the velocity potential and its derivative in the direction of the breakwater length are introduced, and then the problem for the whole breakwaters is reduced as the wave scattering problem corresponding to a single porous bar. The fluid domain for a single bar is divided into multiple regions. The velocity potentials in outer regions are expressed by adopting a conventional eigenfunction expansion method, whereas the velocity potentials in middle regions are obtained using a velocity potential decomposition method. The unknown expansion coefficients in the velocity potentials are determined using the matching conditions on the boundaries between adjacent regions. The analytical solution is confirmed by examining its convergence and several limiting cases for the present breakwaters. Multi-parameter analyses are performed to clarify the reflection coefficient, transmission coefficient, energy loss coefficient, and free surface amplitude near the breakwaters. Some useful results for engineering applications are presented.
Wave scattering by a periodic array of porous breakwaters
Li, Ai-jun (author) / Liu, Yong (author) / Fang, Hui (author) / Liu, Xiao (author)
Applied Ocean Research ; 127
2022-08-28
Article (Journal)
Electronic Resource
English
Wave scattering by periodic arrays of breakwaters
| British Library Conference Proceedings | 1995
Solitary Wave Interaction with Porous Breakwaters
| British Library Online Contents | 2000
Wave directional change by an array of breakwaters
| British Library Conference Proceedings | 1994
Water wave scattering by partially reflecting breakwaters
| Springer Verlag | 2008
Wave Diffraction by Array of Thin-Screen Breakwaters
| British Library Online Contents | 1993