| 不规则波与开孔沉箱相互作用数值模拟 |
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| 引用本文： | 唐蔚,孙大鹏,吴浩. 不规则波与开孔沉箱相互作用数值模拟[J]. 海洋工程, 2017, 35(4): 44-52 |
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| 作者姓名： | 唐蔚 孙大鹏 吴浩 |
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| 作者单位： | 大连理工大学 海岸及近海工程国家重点实验室，辽宁 大连 116024,大连理工大学 海岸及近海工程国家重点实验室，辽宁 大连 116024,大连理工大学 海岸及近海工程国家重点实验室，辽宁 大连 116024 |
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| 基金项目： | 国家自然科学基金资助项目(51279027；51221961） |
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| 摘 要： | 采用三步有限元法对N-S方程进行离散,同时借助CLEAR-VOF方法追踪流体自由表面,利用主动吸收式造波等手段改进了二维不规则波浪数值水槽,使得水槽中的波浪谱与目标靶谱吻合较好。进而建立了不规则波浪与开孔沉箱作用一种新的数值模式,分析研究不规则波作用下开孔沉箱的反射率,并与现有的物模结果和数模结果进行了对比,为不规则波与开孔沉箱作用问题的研究,探求了一种新的数值手段。
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| 关 键 词： | 不规则波 CLEAR-VOF方法 主动吸收式造波 开孔沉箱 反射率 |
Numerical investigation of perforated caisson under the action of irregular wave |
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| TANG Wei,SUN Dapeng and WU Hao. Numerical investigation of perforated caisson under the action of irregular wave[J]. The Ocean Engineering, 2017, 35(4): 44-52 |
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| Authors: | TANG Wei SUN Dapeng WU Hao |
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| Affiliation: | State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China,State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China and State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China |
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| Abstract: | A two dimensional irregular wave numerical flume is established by active absorption wave maker. In this numerical model, the three step finite element method is used to discrete N S equation, and the CLEAR VOF method is used to track the free surface of the fluid. The wave spectrum in the flume is in good agreement with the target spectrum. And then a new numerical model of irregular wave acting on perforated caisson is put forward. The reflection coefficient of perforated caisson is studied, and compared with the existing results of the physical model and numerical results, and finally a new numerical research method is explored for irregular waves acting on perforated caisson. |
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| Keywords: | irregular wave CLEAR VOF active absorbing wave maker perforated caisson reflection coefficient |
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