The investigation of internal solitary waves over a continental shelf-slope

Qian MA; Chunxin YUAN; Xiaopei LIN; Xue'en CHEN

doi:10.1007/s00343-019-9123-8

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The investigation of internal solitary waves over a continental shelf-slope

Physics | Updated：2023-05-19

- The investigation of internal solitary waves over a continental shelf-slope
- The investigation of internal solitary waves over a continental shelf-slope
- 海洋湖沼学报（英文） 2020年38卷第3期页码：695-706
- Affiliations：
  
  1.Physical Oceanography Laboratory/Institute for Advanced Ocean Study, Ocean University of China and Qingdao National Laboratory for Marine Science and Technology, Qingdao 266100, China
  2.School of Mathematical Sciences, Ocean University of China, Qingdao 266100, China
- Author bio：
  
  CHEN Xue'en, xchen@ouc.edu.cn
- Funds：
  
  the Key Program of National Natural Science Foundation of China(91958206);the Fundamental Research Funds for the Central Universities(201813024);the National Key Research and Development Program of China(2016YFA0601803);the Scientific and Technological Innovation Project(2017ASKJ01);the National Natural Science Foundation of China(41490641);the National Natural Science Foundation of China(41521091);the Shandong Provincial Projects(U1606402);the Taishan Scholars Program;© Chinese Society for Oceanology and Limnology, Science Press and Springer-Verlag GmbH Germany, part of Springer Nature 2020
- DOI：10.1007/s00343-019-9123-8
  中图分类号：
- 收稿：2019-05-18，
  
  录用：2019-7-19，
  
  网络首发：2019-09-23，
  
  纸质出版：2020-05
- Accepted：
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The investigation of internal solitary waves over a continental shelf-slope[J]. 海洋湖沼学报（英文）, 2020,38(3):695-706.

Qian MA, Chunxin YUAN, Xiaopei LIN, et al. The investigation of internal solitary waves over a continental shelf-slope[J]. Journal of Oceanology and Limnology, 2020, 38(3): 695-706.
The investigation of internal solitary waves over a continental shelf-slope[J]. 海洋湖沼学报（英文）, 2020,38(3):695-706. DOI： 10.1007/s00343-019-9123-8.

Qian MA, Chunxin YUAN, Xiaopei LIN, et al. The investigation of internal solitary waves over a continental shelf-slope[J]. Journal of Oceanology and Limnology, 2020, 38(3): 695-706. DOI： 10.1007/s00343-019-9123-8.

摘要

Abstract

Internal solitary waves (ISWs) always happen in marginal seas

where stable stratification exists. ISWs may carry large energy when they propagate and affect marine engineering constructions such as marine drilling platforms. Previous studies

including a large number of mooring observations and laboratory experiments

show the speed of ISWs will change when they pass by shelf slopes. Korteweg-de Vries (KdV) theory explain this phenomenon. In the paper

we use a laboratory experiment and a numerical model experiment to verify this theory. In the laboratory experiment

we injected two layers of water of different densities in a tank to simulate marine stratification and make ISWs. We use a CCD camera to record the whole process. The camera can take 16 photos per second. In the numerical experiment

we input the same original conditions as the laboratory one. The results of 18 different original conditions show the dimensionless factor δ plays a key role in deciding the amplitudes and shapes of ISWs. The main conclusion also contains that small-amplitude waves match well with KdV theory while mKdV is better for largeamplitude waves. Whether the laboratory experiment or numerical experiment shows results with a high agreement. In future studies

we may use a numerical model with higher resolution to get analysis about phase speed and energy of ISWs.

关键词

Keywords

references

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