Experimental Determination on the Reflectance Characteristics of Undulating Submerged Obstacle: Comparison Between Regular and Irregular Wave Response

摘要

In this study, physical experiments are conducted with variouscombination of undulating breakwaters collocated with various waveconditions, including regular and irregular waves. The wave reflectivityof various combinations of sinusoidal breakwaters is discussed by thevariation of reflectance; the optimizations of variety of sinusoidalbreakwater are preliminary analyzed. The interaction of surface wavesscattering by an undulating seabed such as sinusoidal bars is one of thefundamental importance relates to sediment transportation, however,such steep and high sediment bed shaped may be instable in theprototype. The characteristics of stabilized multi-array impermeablesinusoidal submerged breakwater are investigated experimentally in thisarticle, and the interactions between wave and the obstacle are discussed.This study discusses merely on the properties of the reflectioncoefficient of the sinusoidal breakwaters and varying combinations ofthe breakwaters. The optimization of the disposition of sinusoidalbreakwaters are also discussed.