Dynamics of interfacial gravity-capillary waves in three-dimensional fluids of great depth
文献类型：期刊论文
| 作者 | Li, Haiyan2,3; Wang, Zhan1,2,3 ; Wang Z(王展); Li HY(李海艳)
|
| 刊名 | COMPUTERS & FLUIDS
 |
| 出版日期 | 2021-12-15 |
| 卷号 | 231页码:13 |
| ISSN号 | 0045-7930 |
| 关键词 | Isotropic model ETD Interfacial wave Capillary-gravity wave |
| DOI | 10.1016/j.compfluid.2021.105151 |
| 通讯作者 | Wang, Zhan(zwang@imech.ac.cn) |
| 英文摘要 | This paper proposes a new isotropic bidirectional model for weakly nonlinear gravity-capillary waves propagating between two incompressible, inviscid, and immiscible fluids of different densities. The newly developed equation is a generalization of the celebrated two-dimensional Benjamin equation. It is derived based on the nonlocal formulation of water wave (i.e., the Ablowitz-Fokas-Musslimani formulation) and computed with the modified exponential time-differencing method. It is found that horizontally two-dimensional, fully localized traveling waves (known as lumps) exist in the model equation, and plane solitary waves are unstable subject to long transverse perturbations, which evolve into groups of lumps in the long-term dynamics. When considering topographical disturbances on the rigid upper boundary, the nonlinear effect becomes important when a uniform flow passes beneath a locally confined topography with a near-critical speed, and the phenomenon of time-periodic shedding of lumps occurs. Unlike the near-critical situation, the subcritical flows usually generate steady elevation waves, while the supercritical ones produce a V-shaped pattern of wake lines. Furthermore, it is shown that a uniformly accelerated motion can also generate lumps provided that the flow stays in the transcritical regime for a considerably long time. |
| WOS关键词 | SOLITARY WAVES ; WATER ; GENERATION |
| 资助项目 | National Natural Science Foun-dation of China[11911530171] ; National Natural Science Foun-dation of China[11772341] ; National Natural Science Foun-dation of China[12132018] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040203] |
| WOS研究方向 | Computer Science ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000708699100005 |
| 资助机构 | National Natural Science Foun-dation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/87631]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 通讯作者 | Wang, Zhan |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Future Technol, Beijing 100049, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Haiyan,Wang, Zhan,Wang Z,et al. Dynamics of interfacial gravity-capillary waves in three-dimensional fluids of great depth[J]. COMPUTERS & FLUIDS,2021,231:13. |
| APA | Li, Haiyan,Wang, Zhan,王展,&李海艳.(2021).Dynamics of interfacial gravity-capillary waves in three-dimensional fluids of great depth.COMPUTERS & FLUIDS,231,13. |
| MLA | Li, Haiyan,et al."Dynamics of interfacial gravity-capillary waves in three-dimensional fluids of great depth".COMPUTERS & FLUIDS 231(2021):13. |
入库方式： OAI收割
来源：力学研究所
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