| 岛礁附近浮式平台运动响应特性数值分析 |
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| 引用本文： | 夏可,万德成.岛礁附近浮式平台运动响应特性数值分析[J].海洋工程,2018,36(3):10-17. |
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| 作者姓名： | 夏可 万德成 |
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| 作者单位： | 海洋工程国家重点实验室(上海交通大学);上海交通大学船舶海洋与建筑工程学院;高新船舶与深海开发装备协同创新中心 |
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| 基金项目： | 国家自然科学基金(51490675, 11432009, 51579145, 51379125)；长江学者奖励计划(T2014099)；上海高校东方学者特聘教授岗位跟踪计划(2013022)；上海市优秀学术带头人计划(17XD1402300)；工信部数值水池创新专项VIV/VIM项目资助(2016 23/09) |
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| 摘 要： | 利用基于开源平台Open FOAM自主开发的船舶与海洋工程水动力性能求解器naoe-FOAM-SJTU,数值模拟了近岛礁环境下规则波的演化特性以及带有系泊系统的浮式平台在相应波浪作用下的水动力性能。对于平台的水动力性能的研究发现,仿真结果与试验结果在平台自由衰减运动固有周期及RAO(response amplitude operator)方面吻合良好。对于波浪在近岛礁地形下的演化现象的研究,分析了波浪演化不对称性特性的成因,并分别给出了不同参数下波浪在地形上爬升时演化的具体特性,对于波高变化及波浪演化的频率成分进行量化的探究。研究发现,波浪周期越大,波高变化越明显,演化的非线性现象越明显,且波浪随着传播距离的增大演化出的阶数也在增大。
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| 关 键 词： | 近岛礁地形 浮式平台 波浪演化 naoe-FOAM-SJTU求解器 |
Numerical investigation of motion response of floating platform near submerged terrain |
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| XIA Ke and WAN Decheng.Numerical investigation of motion response of floating platform near submerged terrain[J].Ocean Engineering,2018,36(3):10-17. |
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| Authors: | XIA Ke and WAN Decheng |
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| Institution: | 1. State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; 2. The School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; 3. Collaborative Innovation Center for Advanced Ship and Deep Sea Exploration, Shanghai Jiao Tong University, Shanghai 200240, China and 1. State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; 2. The School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; 3. Collaborative Innovation Center for Advanced Ship and Deep Sea Exploration, Shanghai Jiao Tong University, Shanghai 200240, China |
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| Abstract: | In the present study, our in house 3D viscous flow solver naoe FOAM-SJTU is employed to simulate the wave evolution characteristics and hydrodynamic properties of floating platform in the corresponding wave environment in shallow water with submerged terrain near island. The validation work was done by comparing the period of free decay motion in three degrees of motion with the experimental data. Subsequently, the RAO (Response Amplitude Operator) of the platform in regular waves of the numerical simulation was compared with experimental data and the comparison showed a great correlation. The properties of the wave evolution and the breaking characteristic over the submerged terrain were clearly depicted and analyzed. |
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| Keywords: | submerged terrain floating platform wave evolution naoe-FOAM-SJTU solver |
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