基于测波雷达现实方向谱的三维波浪数值模拟研究

摘要

X波段测波雷达是一种新型的基于图像分析的海浪观测仪器，其可给出实时可靠的波浪观测信息。依据测波雷达给出的真实波浪相对方向谱数据，利用谱相似条件，经解算得到真实海浪的绝对谱密度值，对三维波浪进行数值模拟。利用浪高仪阵列监测波面，并利用BMD法对波面时历进行谱分析。比对结果表明，与传统基于统计谱的数值波浪模拟相比，文中数值波浪模拟结果更接近于真实海浪，结果良好。%WavemeasurementsystembasedonX-bandmarineradarisanewtypeofwavemonitoring tool which can give real-time and reliable sea wave information. With the relative directional spectrum data sets provided by the wave measurement system ( WaMoSⅡ) , the real directional spectrum is obtained under the condition that the spectrum shapes are of similarity and the 3-dimensional numerical wave simulation is conducted. The wave probe array is deployed to monitor the wave surface elevation, and the data sets are analyzed with the BDM approach. The numerical simulation results show good agreement with the real sea environment, compared with the results derived from the traditional empirical spectrum.