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| An Estimation of Internal Soliton Forces on a Pile in the Ocean | |
| 作者姓名： | DU Tao SUN Li ZHANG Yijun BAO Xianwen FANG Xinhua |
| 作者单位： | [1]Physical Oceanography Laboratory, Ocean University of China, Qingdao 266003, P. R. China [2]National Marine Data and Information Service, Tianjin 300171, P. R. China [3]Shanghai Flood Risk Information Center, Shanghai 200050 ,P ;R. China |
| 基金项目： | 国家自然科学基金;山东省自然科学基金 |
| 摘 要： | Internal soliton forces on oil-platform piles in the ocean are estimated with the Morison Formula. Different from sur- face wave forces, which change only in magnitude along a pile, internal soliton forces can be distributed over the entire pile in the water and they change not only in magnitude but also in direction with depth. Our calculations show that the maximum total force caused by a soliton with its associated current of 2.1 m s-1 is nearly equal to the maximum total force exerted by a surface wave with a wavelength of 300 m and a wave-height of 18 m. The total internal soliton force is large enough to affect the operations of marine oil platforms and other facilities. Therefore, the influence of internal solitons should not be neglected in the design of oil platforms. |
| 关 键 词： | 海洋内波 孤波力 桩 海洋石油平台 |
| 收稿时间： | 2006-10-24 |
| 修稿时间： | 2007-02-12 |
An estimation of internal soliton forces on a pile in the ocean |
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| DU Tao SUN Li ZHANG Yijun BAO Xianwen FANG Xinhua.An Estimation of Internal Soliton Forces on a Pile in the Ocean[J].Journal of Ocean University of China,2007,6(2):101-106. | |
| Authors: | Du Tao Sun Li Zhang Yijun Bao Xianwen Fang Xinhua |
| Institution: | 1. Physical Oceanography Laboratory, Ocean University of China, Qingdao 266003, P. R. China 2. Physical Oceanography Laboratory, Ocean University of China, Qingdao 266003, P. R. China;Shanghai Flood Risk Information Center, Shanghai 200050, P. R. China 3. National Marine Data and Information Service, Tianjin 300171, P. R. China |
| Abstract: | Internal soliton forces on oil-platform piles in the ocean are estimated with the Morison Formula. Different from sur face wave forces, which change only in magnitude along a pile, internal soliton forces can be distributed over the entire pile in the water and they change not only in magnitude but also in direction with depth. Our calculations show that the maximum total force caused by a soliton with its associated current of 2.1 ms-1 is nearly equal to the maximum total force exerted by a surface wave with a wavelength of 300 m and a wave-height of 18 m. The total internal soliton force is large enough to affect the operations of marine oil platforms and other facilities. Therefore, the influence of internal solitons should not be neglected in the design of oil platforms. |
| Keywords: | oceanic internal wave internal soliton internal soliton force ocean oil platform |
| 本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录！ | |