随机波折绕射的缓坡模型实验和数值计算

MILD-SLOPE MODEL EXPERIMENTS AND NUMERICAL CALCULATIONS ON REFRACTION-DIFFRACTION COMBINED MODE OF RANDOM WAVES

文中以给定靶谱模拟随机波面,并对在缓坡中传播着的随机波进行了模型实验。同时,用不同的靶谱和底形进行了海浪谱折绕射的数值计算,并比较了实测值和计算值及其谱形结构。结果表明缓坡中海浪谱折绕射联合模型用来数值计算缓坡中传播的随机波是有效的,它等价于随机波的折绕射模型实验,是一种既经济又方便的方法。

Random wave surface was simulated using given target spectra and the experiments of random wave propagation on mild-slope models were carried out. The numerical calculations of refraction-diffraction of sea-wave spectra were performed with different target spectra and topogra-phies. The comparison between the measured results and spectral structure and those of numerical calculations showed that the refraction-diffraction combined mode of sea wave spectra on mild slope bottom is effective,dovetailed to the experiments of random wave propagation on mild-slope models. It is a very economical and convenient method.