基于Gerstner函数和JONSWAP海浪谱的海浪仿真  

Wave simulation based on combination of Gerstner function and JONSWAP wave spectrum

作　　者：杨志钢 孙鹏 YANG Zhi-gang;SUN Peng(Key Laboratory of Advanced Marine Communication and Information Technology,Ministry of Industry and Information Technology College of Information and Communication Engineering,Harbin Engineering University,Harbin 150001,China)

机构地区：[1]哈尔滨工程大学信息与通信工程学院先进船舶通信与信息技术工业和信息化部重点实验室,哈尔滨150001

出　　处：《哈尔滨商业大学学报（自然科学版）》2021年第6期676-682,共7页Journal of Harbin University of Commerce：Natural Sciences Edition

基　　金：航空科学基金项目(201801P6002)。

摘　　要：针对单一海浪仿真方法在不同场景应用的局限性,提出了基于Gerstner函数与JONSWAP海浪谱相结合的海浪仿真方法,实现了不同波浪强度下的海浪建模.选取了Gerstner函数方程组作来海浪构造模型,并将其扩展成三维形式模拟海浪的细节和真实度;为了控制海浪模型并实现海浪的随机性、多变性、真实性,采用了JONSWAP海浪谱获取控制海浪模型的参数,进而建立了海浪仿真模型;针对多组海浪谱的频谱参数进行海浪仿真和不同海浪建模方法的海浪仿真,实验结果表明,所提方法有效性和实用性较好,真实度高,并适用于多种海浪场景.Aiming at the limitations of a single wave simulation method in different scenarios,a kind of wave simulation method based on the combination of Gerstner function and JONSWAP wave spectrum was proposed,and wave modeling was realized under different wave intensities.Firstly,the Gerstner function equations were selected as the wave structure model,and expand it into a three-dimensional form to simulate the details and reality of the waves;secondly,in order to control the wave model and realize the randomness,variability,and authenticity of the waves,this paper adopted JONSWAP spectrum acquires the parameters of the wave model to control the wave,and established the wave simulation model;finally,according to the spectrum parameters of multiple wave spectra and different wave modeling methods,the wave simulation was carried out.The experimental results showed that the proposed method was effective and practical,with high realism,and it was suitable for a variety of ocean wave scenarios.

关 键 词：Gerstner函数 JONSWAP谱 海浪模型 频谱参数 三维形式 真实性 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]