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利用近海海浪环境开展大尺度船模试验是一种有效的船舶性能试验技术,了解近海海浪环境特征对该试验的开展具有重要意义。文中对黄、渤海多个海域近海海浪进行实地测量,采用谱分析法得到测量海浪的有义波高、特征周期、波能谱等参数,并将实测波浪谱与大洋谱进行无因次化比较,讨论了实测波浪谱与大洋谱的相似性。分析结果表明特定风向与潮汐条件下近海海浪谱与大洋谱具有相似性。
It is an effective technology to test ship performance using the offshore environment. It is of great importance to understand the characteristics of offshore environment. In this paper, the coastal waves in the Yellow Sea and the Bohai Sea are measured on the spot. The wave height, characteristic period, wave energy spectrum and other parameters are measured by spectral analysis. The measured wave spectrum is compared with the ocean spectrum without any dimension. The similarities between the measured wave spectrum and the oceanographic spectrum are discussed. The analysis results show that the near-sea wave spectrum and the oceanographic spectrum have similarities under certain wind direction and tide conditions.