| 流中水平无旋浅水波与大圆柱相互作用 |
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| 引用本文： | 孙明光,高虎山. 流中水平无旋浅水波与大圆柱相互作用[J]. 中山大学学报(自然科学版), 2000, 39(4): 1-4 |
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| 作者姓名： | 孙明光 高虎山 |
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| 作者单位： | 中山大学应用力学与工程系!广东广州510275 |
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| 基金项目： | 国家自然科学基金资助项目!(19572 0 77,1980 2 0 2 3) |
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| 摘 要： | 对于流中的水平无旋浅水波动 ,由三维的纳维 斯托克斯方程出发 ,导出了一组Boussinesq方程 .通过求解此方程组可得到一特定水深的水平速度及表面抬高 ,然后即可由解析表示式很容易地求出三维速度分布及压力分布 .用此方法讨论浅水波流绕射垂直穿剌水面大圆柱的波浪力 ,考虑了碎波影响 ,得到了较好的结果 .
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| 关 键 词： | 水平无旋运动 Boussinesq方程 波流与物体相互作用 |
Interaction Between the Large Cylinder and the Horizontal Irrotational Shallow Water Wave with Current |
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| SUN Ming-guang. Interaction Between the Large Cylinder and the Horizontal Irrotational Shallow Water Wave with Current[J]. Acta Scientiarum Naturalium Universitatis Sunyatseni, 2000, 39(4): 1-4 |
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| Authors: | SUN Ming-guang |
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| Affiliation: | SUN Ming-guangDepartment of Applied Mechanics and Engineering,Zhongshan University,Guangzhou 510275,China,GAO Hu-shan |
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| Abstract: | Based on the Boussinesq assumption, a couple of equations for the horizontal irrotational shallow water wave are derived from the three dimension Navior-Stokes equations. The free surface displacement and horizontal velocities in a specific depth are obtained by solving the couple equations. Then the distribution of the vertical velocity and the pressure are obtained easily from the analytical expression. By the above procedure, the diffraction wave-current forces on the vertical large cylinder in shallow water with the breaking waves are computed. The results are good comparing with the experimental data. |
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| Keywords: | horizontal irrotational motion Boussinesq equations interaction betweeen wave-current and body |
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