非线性随机波与直墙相互作用的数值计算及统计分析

就如何应用非线性随机波及其与直墙相互作用的数学模型进行模拟计算作一叙述，通过近20种组合的波面、波压强、合压力和合力矩等运动和动力过程的模拟计算，并且对模拟过程进行了谱估计及统计分析，形成相应的“波高”、周期、极值等序列，结果表明：应用本文模式进行计算得到的非线性随机波与直墙相互作用的波动过程天然海浪特性，估计谱与理论谱参数一致，同时计算速度快、精度高。

Numerical Calculation for Interaction between Nonlinear Random Waves and Vertical Walls and Statistical Analysis

The second theoretical solutions for the interaction between nonlinear random waves and vertical walls have been discussed in references［1～5］. In this paper an algorithm is proposed for simulating the processes of the interaction between nonlinear waves and vertical walls.Simulations of wave surface, wave pressure, total wave forces and its moment are performed. The probability properties and statistical characteristics of simulations of the above processes are tested, which include the comparison of the theoretical spectra with simulated ones; the probability properties of apparent characteristics, such amplitudes, periods, and extremes (maximum and minimum, positive and negative extremes).Statistical analysis and comparisons demonstrate that the algorithm is realistic and effective, the estimated spectra are in good agreement with the theoretical ones, and the probability properties of the simulated waves are similar to those of sea waves. At the same time, the simulating computation can be completed rapidly and easily.