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| 潜堤上破碎波浪传播变形的数值模型及其验证 | |
| 引用本文： | 刘忠波,于德海,孙昭晨.潜堤上破碎波浪传播变形的数值模型及其验证[J].海洋通报,2011,30(6):633-636. |
| 作者姓名： | 刘忠波 于德海 孙昭晨 |
| 作者单位： | 1. 大连海事大学交通运输装备与海洋上程学院,辽宁大连116026;大连理工大学海岸和近海工程国家重点实验室,辽宁大连116024 2. 大连海事大学交通运输装备与海洋上程学院,辽宁大连,116026 3. 大连理工大学海岸和近海工程国家重点实验室,辽宁大连,116024 |
| 基金项目： | 中国自然科学基金 (40902075)。 |
| 摘 要： | 为模拟潜堤上破碎波浪传播时产生能量的耗散这一特性,在改进的具有四阶色散的Boussinesq水波方程中中入二阶紊动粘性项,建立了考虑波浪破碎的水波数学模型.在非交错网格下建立了有限差分数值模型,并利用三阶Adams-Bash forth格式预报、四阶Adams-Mouton格式校正对数值模型进行求解.通过数值试验,模拟... |
| 关 键 词： | Boussinesq方程:破碎波 紊动粘性 |
| 收稿时间： | 8/9/2010 12:00:00 AM |
| 修稿时间： | 2011/3/22 0:00:00 |
Numerical model of breaking waves propagating over a submerged breakwater and its laboratory validation |
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| LIU Zhong-bo,YU De-hai and SUN Zhao-chen.Numerical model of breaking waves propagating over a submerged breakwater and its laboratory validation[J].Marine Science Bulletin,2011,30(6):633-636. | |
| Authors: | LIU Zhong-bo YU De-hai and SUN Zhao-chen |
| Institution: | 1. Transportation Equipment and Ocean Engineering College, Dalian Maritime University, Liaoning 116026, China; 2. State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Liaoning 116024, China;1. Transportation Equipment and Ocean Engineering College, Dalian Maritime University, Liaoning 116026, China;;2. State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Liaoning 116024, China |
| Abstract: | To model the breaking waves propagating over a submerged breakwater and consider the energy dissipation by breaking property, the mathematical model for breaking waves was given by adding the second order eddy viscosity terms to the fourth order dispersive Boussinesq equations. Numerical model was established with finite differential method in non-staggered grid, and the model was solved with the third-order Adams-Bashforth predictor and the fourth-order Adams-Moulton Corrector in time marching. Numerical simulations were carried upon breaking wave evolution over a submerged breakwater with different back slopes. The computed surface elevations varying with time history in different locations were compared to experimental data, and the agreement was reasonably satisfactory, and this demonstrated that the present method to consider energy dissipation in Boussinesq wave model was effective. |
| Keywords: | Boussinesq eqautions breaking waves eddy viscosity |
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