| Theoretical analysis of the laminar boundary layer beneath forward-leaning waves | |
Xie YQ(谢益芹)1,2; Zhou JF(周济福)1,2 ; Wang X(王旭)1; Duan J(段军); Duan JL(段金龙)1
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| Corresponding Author | Zhou, Jifu([email protected]) |
| Source Publication | COASTAL ENGINEERING
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| 2021-04-01 | |
| Volume | 165Pages:11 |
| ISSN | 0378-3839 |
| Abstract | Wave-induced sediment transport is an important issue in coastal engineering. It is of fundamental significance to manifest the boundary layer behavior of nonlinear waves to accurately describe sediment transport in coastal areas, where wave forms are typically cnoidal or forward leaning rather than sinusoidal or symmetrical. In the present work, a novel expression of the near bed orbital velocity beneath forward-leaning waves is worked out. It is a series in which the coefficients are invariable for arbitrarily forward-leaning waves and just depend on the order of expansion. Based on this new expression, a theoretical solution of the laminar boundary layer beneath forward-leaning waves is derived by solving the governing equation via the method of variable separation. With this theoretical solution, it is convenient to acquire the velocity and shear stress (especially at the bottom) of the boundary layer beneath forward-leaning waves, which are different from those beneath sinusoidal waves as the degree of forward leaning increases. The phase lag between the bottom shear stress and the free-stream velocity is also analyzed, as well as the boundary layer thickness. In addition, the applicability of the present theory is discussed by comparing theoretical results with numerical results of different flow regimes. |
| Keyword | Forward-leaning waves Near bed orbital velocity Theoretical solution Laminar boundary layer Bottom shear stress |
| DOI | 10.1016/j.coastaleng.2021.103852 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000626815000002 |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Civil ; Engineering, Ocean |
| Funding Project | National Key R&D Program of China[2017YFC1404202] ; National Natural Science Foundation of China[11572332] ; National Natural Science Foundation of China[51520105014] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040203] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA22040304] |
| Funding Organization | National Key R&D Program of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences |
| Classification | 一类 |
| Ranking | 1 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/86297 |
| Collection | 流固耦合系统力学重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Xie YQ,Zhou JF,Wang X,et al. Theoretical analysis of the laminar boundary layer beneath forward-leaning waves[J]. COASTAL ENGINEERING,2021,165:11. |
| APA | 谢益芹,周济福,王旭,段军,&段金龙.(2021).Theoretical analysis of the laminar boundary layer beneath forward-leaning waves.COASTAL ENGINEERING,165,11. |
| MLA | 谢益芹,et al."Theoretical analysis of the laminar boundary layer beneath forward-leaning waves".COASTAL ENGINEERING 165(2021):11. |
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| File Name/Size | DocType | Version | Access | License | ||
| Jp2021162.pdf（8740KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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