海上结构物在服役期间会遭受各种恶劣海况，浮式防波堤作为平台等结构物的掩体在波浪作用下产生上下浮动或者前后摆动，通过波浪的反射和耗散，扰乱水质点运动，最终实现消波减能，保护结构物的安全。在防浪消波的过程中，浮式防波堤受到显著的波浪砰击，其自身安全受到威胁，因此，准确预报其砰击载荷至关重要。本文运用CFD方法，基于STAR-CCM+软件，分别以锚链锚泊式浮式防波堤和垂直导桩锚泊式浮式防波堤作为研究对象，分析规则波作用下，浮式防波堤的砰击载荷及其运动响应，并进行对比分析。结果表明，2种锚泊方式下，浮式防波堤所受到的砰击载荷主要集中在迎浪面，均随波高的增大而增大，随周期的增大而减小，相同工况下，锚链锚泊式浮式防波堤所受砰击载荷较大。
Marine structures are subject to a variety of adverse sea conditions during service, Floating breakwater, as a shelter for platforms and other structures, floats up and down or swings back and forth under the action of waves. Through reflection and dissipation of waves, water quality point movement is disturbed, and wave elimination and energy reduction are finally realized to protect the safety of structures. In the process of wave protection, the floating breakwater will be hit by significant waves, which will affect the safety of the floating breakwater. Therefore, accurate prediction of the slamming load of floating breakwater is very important.In this paper, taking floating breakwaters moored by chains or vertical piles as projects, the slamming load and its motion response of floating breakwater under the action of regular waves are analyzed and compared with CFD method based on STAR-CCM+. The results show that under the two mooring modes, the slamming load is mainly concentrated on the wave face, which increases with the increase of wave height and decreases with the increase of the period. Under the same condition, the anchor chain anchored floating breakwater is subjected to a larger slamming load.
2021,43(6): 95-99 收稿日期：2020-02-29
DOI：10.3404/j.issn.1672-7649.2021.06.018
分类号：U661.3
基金项目：国家自然科学基金资助项目(51861130358)
作者简介：嵇春艳(1976-)，女，教授，主要从事船舶与海洋工程动力特性分析与结构安全评估
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