局部开口防波堤斜向波反射的理论分析与实验研究

A Theoretical and Experimental Study of the Interaction Between Oblique Incident Waves and Breakwaters with Partial Perforated Wall

研究了局部开口防波堤对斜向入射波的反射特性。整个流域被分成两个子域,在每个子区域内,应用分离变量法和特征函数展开法以求得相应的速度势。在速度势的特征展开中考虑了非传播模态波。数值计算结果与实验数据进行了比较。讨论了开孔影响系数,相对消浪室宽度,消浪室内部的相对水深以及结构物前水深等主要因素对反射系数的影响。

The interaction between oblique incident waves and breakwater with partialperforated front wall is investigated.The fluid domain is divided into two subdomains and eigenfunction expansion method is applied to expand velocity potentials in each domain.In the eigenexpansion of the velocity potential,evanescent waves are included.Numerical calculated results are compared with the experimental data.The effect of porosity(G),the relative chamber width(B/L),the relative water depth in the wave absorbing chamber(g)and the water depth(d)in front of the structure are discussed.