基于波浪数值水槽的辐射应力理论的比较研究

发布时间：2018-05-29 13:31

  本文选题：波浪 + 辐射应力　； 参考：《海洋湖沼通报》2017年01期

【摘要】：关于辐射应力的计算存在不同的理论解,目前对这些理论的验证较为匮乏。本文基于CFD软件FLUENT,建立二维数值波浪水槽模型,计算得到与理论解符合良好的波动过程。利用数值结果,研究辐射应力的垂向结构。结果表明,辐射应力值在波峰至波谷区域存在突变,其表层积分值与表层以下辐射应力不连续。基于线性波动理论,针对不同的入射波参数设计实验,检验现有辐射应力理论的适用性。结果发现,不同情况下适用的辐射应力理论不同。在实际应用中,应当根据不同波动类型和计算区域选取合适的辐射应力理论。
[Abstract]:There are different theoretical solutions to the calculation of radiation stress. In this paper, based on CFD software fluent, a two-dimensional numerical wave flume model is established, and the calculated results are in good agreement with the theoretical solution. The vertical structure of radiation stress is studied by numerical results. The results show that there is a sudden change in the value of radiation stress in the region from peak to trough, and the surface integral value is not continuous with the radiation stress below the surface layer. Based on the linear wave theory, experiments are designed for different incident wave parameters to test the applicability of the existing radiation stress theory. The results show that the radiation stress theory is different under different conditions. In practical application, appropriate radiation stress theory should be selected according to different wave types and calculated regions.
【作者单位】： 中国海洋大学海洋与大气学院;国家海洋局北海预报中心;
【基金】：国家科技支撑计划课题资助(2011BAC03B01)资助
【分类号】：P731.22
，

本文编号：1951053