Depression and elevation internal solitary waves in a two-layer fluid and their forces on cylindrical piles
文献类型：CNKI期刊论文
| 作者 | Xu ZH(徐振华); Yin BS(尹宝树); Yang HW(杨红卫); Qi JF(齐继峰) |
| 发表日期 | 2012-07-15 |
| 出处 | Chinese Journal of Oceanology and Limnology
 |
| 关键词 | internal solitary wave elevation internal wave force northwest South China Sea (SCS) |
| 英文摘要 | Both large amplitude depression and elevation internal solitary waves (ISWs) were observed on the continental shelf of the northwest South China Sea (SCS) during the Wenchang Internal Wave Experiment. In this study, we investigate the characteristics of depression and elevation ISWs based on comparisons between observational results and internal wave theories. It is suggested that the large amplitude depression wave is better represented by the extended Korteweg-de Vries (EKdV) theory than by the KdV model, whereas the large amplitude elevation wave is in better agreement with the KdV equation than with the EKdV theory. Wave-induced forces on a supposed small-diameter cylindrical pile by depression and elevation waves are also estimated using the internal wave theory and Morison formula. The wave-induced force by elevation ISWs is rarely reported in the literature. It is found that the force induced by the elevation wave differs significantly from that by the depression wave, and the elevation wave generally produces greater force on the pile in the lower water column than the depression wave. These results show that ISWs in the study area can present a serious threat to ocean engineering structures, and should not be ignored in the design of oil platforms and ocean operations. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | Supported by the National Natural Science Foundation of China(Nos.41106017,41030855) ; the Knowledge Innovation Program of Chinese Academy of Sciences(No.KZCX1-YW-12) ; the Natural Science Foundation of Jiangsu Province of China(No.BK2011396) ; the National High Technology Research and Development Program of China(863program)(No.2008AA09A401) |
| 卷 | v.30期:04页:199-208 |
| 语种 | 英文; |
| 分类号 | P731.2 |
| ISSN号 | 0254-4059 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/191194]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.InstituteofOceanology,ChineseAcademyofSciences 2.KeyLaboratoryofOceanCirculationandWaves(KLOCAW),ChineseAcademyofSciences 3.NantongBranch,InstituteofOceanology,ChineseAcademyofSciences 4.GraduateUniversityofChineseAcademyofSciences |
| 推荐引用方式 GB/T 7714 | Xu ZH,Yin BS,Yang HW,et al. Depression and elevation internal solitary waves in a two-layer fluid and their forces on cylindrical piles. 2012. |
入库方式： OAI收割
来源：海洋研究所
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