IMECH-IR  > 流固耦合系统力学重点实验室
Research on bilateral reverse migration of one-group seabed sand waves in a small shallow shelf sea
Jiang WB(江文滨); Lin M(林缅); Lin, M (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China.
Source PublicationCOASTAL ENGINEERING
2016
Volume111Pages:70-82
ISSN0378-3839
AbstractBilateral reverse migration of one-group seabed sand waves is found recently in many small sea areas and is a potential threat to the safety of many near seabed engineering structures, such as pipelines and cables. The mechanism cannot clearly be explained by existing theories. This paper focuses on the bilateral reverse migration of one-group seabed sand waves around a sand ridge in a small shallow shelf sea of the South China Seas, and presents a developed numerical model consisting of three-dimensional wave-current coupling module and sand transport module to simulate this complex phenomenon and perform relative analysis on the characteristics of the current and bilateral reverse migration formation mechanism. Taking the ocean environment characteristics of the surrounding sea area into account and with sufficient grid resolution, this model successfully depicts the process of sand wave bilateral reverse migration. Bottom friction velocity is taken as the inspecting physical quantity and divided into tidal, residual and short-term fluctuation components through harmonic analysis; with a method based on bedload transport calculation, the contributions of the above three parts are determined. It is found that long-term sand wave migration trend is primarily controlled by both tidal constituents and residual velocity. Under nonlinear pure tidal impact, the sand waves migrate southwards; the residual current is northwards and will cancel the tidal impact. When the magnitude of the residual velocity is large enough, i.e., in the western part of the sand wave area, sand waves migrate northwards; when the residual velocity is small, i.e., in the eastern part, sand waves migrate southwards and the bilateral reverse migration pattern is formed. The residual velocity distribution relates closely to the surrounding topography. This paper discloses one kind of mechanisms for bilateral reverse migration of one-group seabed sand waves, and the model and analysis framework can also be extended and applied to other similar situations to prompt deeper and more comprehensive understanding about sand wave migration. (C) 2016 Elsevier B.V. All rights reserved.
KeywordSmall Area Sand Wave Bilateral Reverse Migration Shallow Shelf Sea One-group
DOI10.1016/j.coastaleng.2016.01.013
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000373544600007
WOS Research AreaEngineering
WOS SubjectEngineering, Civil ; Engineering, Ocean
Funding OrganizationThis work is supported by the National Natural Science Foundation of China (Grant no. 41406124 and Grant no. 11032007) and the Key Instrument Developing Project of the Chinese Academy of Sciences (Grant no. ZDYZ2012-1-08-02).
DepartmentLMFS海洋环境与工程(LEM)
Classification一类
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/58800
Collection流固耦合系统力学重点实验室
Corresponding AuthorLin, M (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Jiang WB,Lin M,Lin, M . Research on bilateral reverse migration of one-group seabed sand waves in a small shallow shelf sea[J]. COASTAL ENGINEERING,2016,111:70-82.
APA 江文滨,林缅,&Lin, M .(2016).Research on bilateral reverse migration of one-group seabed sand waves in a small shallow shelf sea.COASTAL ENGINEERING,111,70-82.
MLA 江文滨,et al."Research on bilateral reverse migration of one-group seabed sand waves in a small shallow shelf sea".COASTAL ENGINEERING 111(2016):70-82.
Files in This Item: Download All
File Name/Size DocType Version Access License
???1-s2.0-S037838391(2334KB)期刊论文出版稿开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[江文滨]'s Articles
[林缅]'s Articles
[Lin, M (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China.]'s Articles
Baidu academic
Similar articles in Baidu academic
[江文滨]'s Articles
[林缅]'s Articles
[Lin, M (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[江文滨]'s Articles
[林缅]'s Articles
[Lin, M (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: ???1-s2.0-S0378383916300047-main.pdf
Format: Adobe PDF
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.