表面波法海浪绘制综述  

Survey on ocean wave rendering with surface wave method

作　　者：陈丽宁[1] 金一丞[1] 任鸿翔[1] 尹勇[1] 

机构地区：[1]大连海事大学航海动态仿真和控制交通行业重点实验室,辽宁大连116026

出　　处：《计算机工程与设计》2014年第6期2127-2134,共8页Computer Engineering and Design

基　　金：国家973重点基础研究发展规划基金项目(2009CB320805);中央高校基本科研业务费专项基金项目(3132013302)

摘　　要：将海浪绘制方法划分为计算流体力学法与表面波法,对表面波法近年的发展进行综述。表面波法又可分为Gerstner波法、快速傅里叶逆变换法,前者绘制结果为规则波,后者绘制结果为不规则波,两者都适于实时绘制大尺度海浪,且能实现波浪破碎。对快速傅里叶逆变换法所用海浪谱进行改进,使绘制的海浪能体现风距、风速的影响。对波数向量采样进行优化以提高绘制效率;改进海浪破碎方式,使绘制结果与观测数据更接近。The ocean wave rendering was classified into two types,the computational fluid dynamic method and surface wave method.The research of the surface wave method was surveyed.The surface method could further be separated into two types,the Gerstner wave method and the inverse fast fourier transform （IFFT） method.The generated wave of the former method was the regular wave,and that of the latter method was the irregular.Both methods could be applied to real-time rendering of the large scale ocean wave with wave-breaking effect.Improvement was done for the wave spectrum used in IFFT method.With the improvement,the rendered wave could reflect the fetch length influence along with the wind speed.Possible improvements were raised for IFFT method,one was that sampling of the wave number vector should be optimized for increasing rendering efficiency the other was that improvement should be done for wave breaking,and the improvement could make the rendered wave more similar with the actual observation data.

关 键 词：海浪绘制 Gerstner波 快速傅里叶逆变换 海浪谱 风距 航海模拟器 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]