Knowledge Management System of Institue of Mechanics, CAS
| MODELING EVOLUTION OF INTERNAL WAVES IN SOUTH CHINA SEA | |
Zhou JF(周济福) ; Wang YT(王延涛)
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| Source Publication | Proceedings of the third international conference on estuaries and coasts |
| 2009 | |
| Pages | 728-731 |
| Conference Name | The 3rd International Conference on Estuaries and Coasts |
| Conference Date | 2009-09 |
| Conference Place | 日本，仙台 |
| Abstract | Internal waves are an important factor in the design of drill operations and production in deep water, because the waves have very large amplitude and may induce large horizontal velocity. How the internal waves occur and propagate over benthal terrain is of great concern for ocean engineers. In the present paper, we have formulated a mathematical model of internal wave propagation in a two-layer deep water, which involves the effects of friction, dissipation and shoaling, and is capable of manifesting the variation of the amplitude and the velocity pattern. After calibration by field data measured at the Continental Slope in the Northern South China Sea, we have applied the model to the South China Sea, investigating the westward propagation of internal waves from the Luzon Strait, where internal waves originate due to the interaction of benthal ridge and tides. We find that the internal wave induced velocity profile is obviously characterized by the opposite flow below and above the pycnocline, which results in a strong shear, threatening safety of ocean structures, such as mooring system of oil platform, risers, etc. When internal waves propagate westwards, the amplitude attenuates due to the effects of friction and dissipation. The preliminary results show that the amplitude is likely to become half of its initial value at Luzon Strait when the internal waves propagate about 400 kilometers westwards. |
| Indexed By | 其他 |
| Language | 中文 |
| Document Type | 会议论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/28697 |
| Collection | 环境力学重点实验室(2009-2011) |
| Corresponding Author | Zhou JF(周济福) |
| Recommended Citation GB/T 7714 | Zhou JF,Wang YT. MODELING EVOLUTION OF INTERNAL WAVES IN SOUTH CHINA SEA[C]Proceedings of the third international conference on estuaries and coasts,2009:728-731. |
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