ARTÍCULO
TITULO

Representative Transmission Coefficient for Evaluating the Wave Attenuation Performance of 3D Floating Breakwaters in Regular and Irregular Waves

Huu Phu Nguyen    
Jeong Cheol Park    
Mengmeng Han    
Chien Ming Wang    
Nagi Abdussamie    
Irene Penesis and Damon Howe    

Resumen

Wave attenuation performance is the prime consideration when designing any floating breakwater. For a 2D hydrodynamic analysis of a floating breakwater, the wave attenuation performance is evaluated by the transmission coefficient, which is defined as the ratio between the transmitted wave height and the incident wave height. For a 3D breakwater, some researchers still adopted this evaluation approach with the transmitted wave height taken at a surface point, while others used the mean transmission coefficient within a surface area. This paper aims to first examine the rationality of these two evaluation approaches via verified numerical simulations of 3D heave-only floating breakwaters in regular and irregular waves. A new index?a representative transmission coefficient?is then presented for one to easily compare the wave attenuation performances of different 3D floating breakwater designs.

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