| Scaled Boundary Finite Element Analysis of Wave Passing A Submerged Breakwater |
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| 作者姓名： | 曹凤帅 滕斌 |
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| 作者单位： | State Key Laboratory of Coastal and Offshore Engineering Dalian University of Technology，State Key Laboratory of Coastal and Offshore Engineering Dalian University of Technology，Dalian 116024 China，Dalian 116024 China |
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| 基金项目： | 国家自然科学基金，大连理工大学长江学者和创新团队发展计划 |
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| 摘 要： | The scaled boundary finite element method （SBFEM） is a novel semi-analytical technique combining the advantage of the finite element method （FEM） and the boundary element method （BEM） with its unique properties. In this paper, the SBFEM is used for computing wave passing submerged breakwaters, and the reflection coeffcient and transmission coefficient are given for the case of wave passing by a rectangular submerged breakwater, a rigid submerged barrier breakwater and a trapezium submerged breakwater in a constant water depth. The results are compared with the analytical solution and experimental results. Good agreement is obtained. Through comparison with the results using the dual boundary element method （DBEM）, it is found that the SBFEM can obtain higher accuracy with fewer elements. Many submerged breakwaters with different dimensions are computed by the SBFEM, and the changing character of the reflection coeffcient and the transmission coefficient are given in the current study.
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| 关 键 词： | 边界 有限元分析 水作用力 挡水板 |
Scaled Boundary Finite Element Analysis of Wave Passing A Submerged Breakwater |
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| CAO Feng-shuai,TENG Bin.Scaled Boundary Finite Element Analysis of Wave Passing A Submerged Breakwater[J].China Ocean Engineering,2008,22(2):241-251. |
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| Authors: | CAO Feng-shuai TENG Bin |
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| Institution: | State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China |
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| Abstract: | The scaled boundary finite element method (SBFEM) is a novel semi-analytical technique combining the advantage of the finite element method (FEM) and the boundary element method (BEM) with its unique properties. In this paper, the SBFEM is used for computing wave passing submerged breakwaters, and the reflection coefficient and transmission coefficient are given for the case of wave passing by a rectangular submerged breakwater, a rigid submerged barrier breakwater and a trapezium submerged breakwater in a constant water depth. The results are compared with the analytical solution and experimental results. Good agreement is obtained. Through comparison with the results using the dual boundary element method (DBEM), it is found that the SBFEM can obtain higher accuracy with fewer elements. Many submerged breakwaters with different dimensions are computed by the SBFEM, and the changing character of the reflection coefficient and the transmission coefficient are given in the current study. |
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| Keywords: | scaled boundary finite element method (SBFEM) potential flow wave action submerged breakwater reflection coefficien transmission coefficient |
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