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本文研究波群间的相互作用对波高分布的影响。结果表明,波群间的非线性作用会导致波高分布偏离线性条件下的分布。在小波高、中波高范围内,波群间的非线性相互作用会使得波高分布高于线性条件下的分布,在大波高范围内会使得波高分布低于线性条件下的分布;非线性情形下波高分布高于和低于线性情形的转折区域在1.0～1.5倍平均波高处。实验结果与理论结果相符,并引入1个参量以反映波群间非线性作用对波高分布的影响程度,在连续谱情形,该参量相当于谱峰右侧与左侧的面积比。本文结果表明谱形与平均波陡同是影响波高分布的重要因素,在波高分布的研究中,谱形参量应作为被予以考虑的重要参量。
In this paper, we study the influence of wave group interactions on wave height distribution. The results show that the non-linear effect of wave groups can cause the wave height distribution to deviate from the linear distribution. In the high and medium wave regions, the nonlinear interaction between wave groups causes the wave height distribution to be higher than that under the linear condition, and the wave height distribution under the high wave height will be lower than that under the linear condition. In the nonlinear case The inflection area with wave height distribution above and below the linear case is 1.0 ~ 1.5 times the average wave height. The experimental results are consistent with the theoretical results. One parameter is introduced to reflect the effect of non-linear wave groups on the wave height distribution. In the case of continuous spectrum, this parameter is equivalent to the area ratio of the right side to the left side of the peak. The results show that the spectral shape and average steepness are important factors affecting the wave height distribution. In the study of wave height distribution, spectral parameters should be considered as important parameters.