岛礁地形上拍岸浪的数值模拟研究

发布时间：2018-05-19 05:49

本文选题：Boussinesq方程 + FUNWAVE模式　；参考：《海洋科学进展》2017年03期

【摘要】：近年来,越来越多的海岸工程与军事活动在岛礁上展开。研究岛礁地形上拍岸浪的传播特征具有重要的指导作用和现实意义。在对波浪破碎的研究中,数值模拟方法以其经济可行、操作性强的优势而得到了广泛的应用。本文采用基于完全非线性Boussinesq方程的数值模型FUNWAVE-TVD模式,对岛礁地形上拍岸浪的传播过程进行模拟,并将模拟结果与实验室数据进行对比。在此基础上,通过修改岛礁前坡坡度,分析了不同坡度下波浪的传播变化特征。结果表明,FUNWAVE-TVD模式能够较为准确地模拟岛礁地形上拍岸浪的非线性作用以及破碎现象。波浪破碎位置随岛礁前坡坡度的减小而前移。
[Abstract]:In recent years, more and more coastal engineering and military activities have been carried out on the islands and reefs. It is of great guiding and practical significance to study the characteristics of wave propagation on the island and reef terrain. In the research of wave breaking, numerical simulation method has been widely used because of its advantages of economic feasibility and strong maneuverability. In this paper, the numerical model FUNWAVE-TVD model based on completely nonlinear Boussinesq equation is used to simulate the propagation process of the shore wave on the island and reef terrain, and the simulation results are compared with the laboratory data. On this basis, the characteristics of wave propagation at different slopes are analyzed by modifying the slope of the front slope of the island and reef. The results show that the FUNWAVE-TVD model can accurately simulate the nonlinear action and fragmentation of shore waves on the island and reef topography. The breaking position of the waves moves forward with the decrease of the slope of the front slope of the island and reef.
【作者单位】：国防科技大学气象海洋学院;河海大学海洋学院;
【基金】：国家自然科学基金项目——引入波浪漫滩边界的近岸海域悬沙输运数值模式及其应用(41076048) 中央高校基本科研业务费项目——卫星遥感海浪反演岛礁水深的初步模型及可行性评估(2011B06514)
【分类号】：P731.22;P75

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