摘要
本文以离散付里叶变换手段数值模拟海浪过程,对海浪单过程的模拟提出三种具体模式,并介绍了模拟的实现方法。以我国1966年提出的海浪谱为靶谱,在DJS—6电子计算机上实现,给出了模拟波面及谱曲线,比较靶谱及模拟谱表明,以m=400个子波叠加进行模拟时,模式及实现方法是满意的。
Three approaches of simulating ocean wave processes and the relevant methods of generating member functions of given process are discussed in the paper. The technique of DFT (Discrete Fourier Transform) is used. A kind of speetra proposed in China in 1966 is taken as the target spectrum and the time histories of the free surface elevation are obtained on computer DJS-6 . The spectrum estimation is then made from the time histories. The Comparison between the estimated speetra and the target speetra shows that the method used here is satisfactory.
