| 开孔沉箱与斜向波作用的理论研究和实验验证 |
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| 引用本文： | 滕斌,李玉成,刘洪杰.开孔沉箱与斜向波作用的理论研究和实验验证[J].海洋工程,2004,22(1):37-45. |
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| 作者姓名： | 滕斌 李玉成 刘洪杰 |
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| 作者单位： | 1. 大连理工大学,海岸和近海工程国家重点实验室,辽宁,大连,116023
2. 浙江省交通规划设计研究院,浙江,杭州,310006 |
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| 基金项目： | 国家自然科学基金委与香港科学研究署联合基金资助项目(49910161985)，国家自然科学基金资助项目(50025924)，交通部港口工程设计规范修订研究基金资助项目 |
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| 摘 要： | 应用透空壁内流体速度与壁两侧的压力差成正比的线性模型，研究了无限多个开孔沉箱在斜向波作用下的反射问题。整个流域被分成无限多个子域，在每个子域内应用特征函数展开法对速度势进行展开。对于沉箱内的波浪运动，根据沉箱位置引入相位差概念。在构造反射波模型时，考虑了结构物几何形状周期性的影响。结果表明，当孔隙系数无限大时，开孔墙前后的速度非常接近，反射系数符合能量守恒定律。在低频入射波作用下，沉箱越短，其反射系数越小，反射系数随着角度的变大而减小。
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| 关 键 词： | 斜向入射波 开孔沉箱 横隔板 波浪反射 |
| 文章编号： | 1005-9865(2004)01-0037-09 |
| 修稿时间： | 2002年10月8日 |
The theoretical study and experimental validation of wave reflection induced by the interaction of oblique waves with perforated caissons |
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| TENG Bin,LI Yu-cheng,LIU Hong-jieDalian University of Technology,Dalian,Chin,.Zhejiang Provincial Plan Design & Research Institute of Communications,Hangzhou,China.The theoretical study and experimental validation of wave reflection induced by the interaction of oblique waves with perforated caissons[J].Ocean Engineering,2004,22(1):37-45. |
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| Authors: | TENG Bin LI Yu-cheng LIU Hong-jieDalian University of Technology Dalian Chin Zhejiang Provincial Plan Design & Research Institute of Communications Hangzhou China |
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| Institution: | TENG Bin~1,LI Yu-cheng~1,LIU Hong-jie~2Dalian University of Technology,Dalian 116023,China, 2.Zhejiang Provincial Plan Design & Research Institute of Communications,Hangzhou 310006,China) |
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| Abstract: | The reflection of obliquely incident waves with infinite number of perforated caissons is investigated under the assumption that the fluid velocity inside a perforated wall is linear with the pressure differences between the two sides of it. The fluid domain is divided into infinite sub-domains and eigenfunction expansion is applied to expand velocity potentials in each domain. A phase relation is introduced and structure geometry is considered in constructing the models of reflection waves. Numerical results are compared with experimental data. Numerical examinations show that velocities at the inner and outer sides of front walls of caissons are close to each other and reflection coefficients satisfy the energy conservation relation very well when porous effect parameter is infinite. Further numerical results show that the reflection coefficients of obliquely incident waves are smaller for shorter caissons at low frequency. Wave reflection coefficients decrease with the increase of wave incident angle. |
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| Keywords: | oblique incident wave perforated caisson transverse wall wave reflection |
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