强潮环境下小型海岛海滩修复方案数值模拟研究Numerical Study on the Beach Nourishmentin Macrotidal Coast of a Small Island
张振伟;刘建辉;李兵;刘贞文;
摘要(Abstract):
应用FVCOM模型对强潮环境小型海岛(平潭大屿岛)周边海域开展了潮汐潮流数值模拟研究,结果表明大屿岛周围潮波为前进波,潮流与潮位变化同步,潮流在高潮(涨急)时由北向南流动,低潮(落急)时由南向北流动,且潮流流速较大.平潭大屿北侧海滩属于典型的岬湾海滩,波浪作用为主要的动力因素,其南侧海滩在波浪和潮汐动力作用下形成的沙滩岸线与海流流向基本平行,潮流起到了一定的作用.针对平潭大屿岛两个沙滩不同的动力特性提出了相应的海滩修复方案,并应用XBEACH模型对强浪作用下海滩剖面演变进行了计算分析.
关键词(KeyWords): 海滩修复;强潮;波浪;数值模拟;无居民海岛
基金项目(Foundation): 河海大学海岸灾害及防护教育部重点实验室开放基金(201705);; 福建省科技计划项目(2015Y0035);; 海洋公益性行业科研专项经费项目(201405037)
作者(Authors): 张振伟;刘建辉;李兵;刘贞文;
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