| 波浪方向对两矩形驳船间窄缝内流体共振影响的数值研究 |
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| 引用本文： | 金瑞佳,滕斌,宁德志,赵明,程亮.波浪方向对两矩形驳船间窄缝内流体共振影响的数值研究[J].海洋学报(英文版),2017,36(6):104-111. |
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| 作者姓名： | 金瑞佳 滕斌 宁德志 赵明 程亮 |
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| 作者单位： | 大连理工大学, 海岸和近海工程国家重点实验室, 大连, 116024, 中国,大连理工大学, 海岸和近海工程国家重点实验室, 大连, 116024, 中国,大连理工大学, 海岸和近海工程国家重点实验室, 大连, 116024, 中国,大连理工大学, 海岸和近海工程国家重点实验室, 大连, 116024, 中国;西悉尼大学, 计算, 工程和数学学院, 彭里斯, 新南威尔士州 2751, 澳大利亚,大连理工大学, 海岸和近海工程国家重点实验室, 大连, 116024, 中国 |
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| 基金项目： | The National Natural Science Foundation of China under contract Nos 51679036 and 51490672; the Open Fund of State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering under contract No. 2016490111; UK-China Industry Academia Partnership Programme under contract No. UK-CIAPP\73. |
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| 摘 要： | 应用二阶非线性三维势流时域模型模拟两个并靠矩形驳船间的窄缝内流体共振现象。模型中，速度势分解为入射势和未知的散射势，其中散射势通过求解边界积分方程计算得到。采用四阶预报校正的方法对自由水面边界条件在时间上进行数值积分。本文研究了波浪方向对窄缝内一阶、二阶波高的影响。计算结果表明，入射波浪的角度不会影响窄缝内流体的共振频率，同时窄缝内流体发生共振时，最大的共振波高总是发生在窄缝中点处。然而，共振时对应的最大波高随着入射角度的变化而变化。同时，入射波浪的频率与窄缝内流体共振频率的相对大小导致窄缝内最大波高位置向上游或者下游移动。
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| 关 键 词： | 并靠驳船 共振波高 二阶时域模型 波浪方向性 流体共振 |
| 收稿时间： | 2016/1/27 0:00:00 |
| 修稿时间： | 2016/3/25 0:00:00 |
Numerical investigation of influence of wave directionality on the water resonance at a narrow gap between two rectangular barges |
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| JIN Ruiji,TENG Bin,NING Dezhi,ZHAO Ming and CHENG Liang.Numerical investigation of influence of wave directionality on the water resonance at a narrow gap between two rectangular barges[J].Acta Oceanologica Sinica,2017,36(6):104-111. |
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| Authors: | JIN Ruiji TENG Bin NING Dezhi ZHAO Ming and CHENG Liang |
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| Institution: | 1.State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China2.State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China;School of Computing, Engineering and Mathematics, Western Sydney University, Penrith, NSW 2751, Australia |
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| Abstract: | A three-dimensional time-domain potential flow model with second-order nonlinearity was applied to simulate the wave resonance in a gap between two side-by-side rectangular barges. In the model, the velocity potential was decomposed into the incident potential and unknown scattered potential which was obtained by solving the boundary integral equation. The fourth-order predict-correct method was applied to enforce the free surface conditions in the time integration. The influence of the wave direction on the first and second-order gap surface elevations was investigated. The results reveal that the incident wave angle does not affect the resonant wave frequency and the maximum surface elevation at resonance always occurs at the middle location along the gap. However, the corresponding maximum wave surface elevation at resonance varies with the incident wave angle. The location of the maximum wave elevation shifts either upstream or downstream along the gap, depending on the relative magnitude of incident wave frequency to the resonant frequency. |
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| Keywords: | side-by-side barges resonant elevation second-order time-domain model wave directionality water resonance |
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