深吃水圆筒型平台是一种新型多功能高效平台，可有效解决岛礁开发中的能源供给问题。但平台在持续性的来流作用下会发生剧烈的涡激运动，将导致平台系泊、立管系统发生疲劳损害。从抑制涡激运动的角度出发，设计一套新型扰流板结构。基于改进的延迟分离涡模拟方法（IDDES）数值模拟并对比分析了有、无扰流板2种情况下深吃水圆筒型平台横荡、纵荡和首摇运动响应，并从运动时域、频域和三维流场特征等角度对结果展开分析。结果表明，新型扰流板对平台横荡、纵荡和首摇运动均有较好的抑制作用，其中对横荡运动抑制效果最为显著，效率高达89%。带扰流板的深吃水圆筒型平台涡激运动数值模拟分析在平台实际结构设计中具有重要工程意义。
Deep-draft cylindrical platform (DDCP) is an original concept of efficient multifunctional platform, firstly raised in the field of vortex-induced motion (VIM) for offshore platforms, which can effectively solve the problem of energy supply in the development of offshore islands and reefs in the sea. Long-lasting VIM may cause the platform mooring system fatigue and seriously affect the normal living and working environment. Therefore, a new type of spoiler structure is proposed to suppress the VIM of the platform. The numerical simulation of the deep-draft cylindrical platform with (without) spoiler plates is carried out based on the improved delayed detached-eddy simulation (IDDES), including the comparative analysis for the response of sway, surge and yaw. The results show that the spoiler plates has a significant suppressive effect on the sway motion, which the efficiency is up to 89%. The numerical simulation and analysis for VIM of the deep-draft cylindrical platform with spoiler plates is of great significance to the practical design.
2023,45(11): 106-112 收稿日期：2022-04-26
DOI：10.3404/j.issn.1672-7619.2023.11.021
分类号：O35
基金项目：中核集团领创科研项目（19GFC-JJ12-669）；上海交通大学深蓝计划资助项目（SL2020ZD101）
作者简介：曹辰泽(1997-),男,硕士研究生,研究方向为海上浮式平台涡激运动数值模拟
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