| On diffraction and oblique interactions of horizontally two-dimensional internal solitary waves |
| Yuan,Chunxin; Wang Z(王展)
|
| 通讯作者 | Wang, Zhan([email protected])
|
| 发表期刊 | JOURNAL OF FLUID MECHANICS
 |
| 2022-02-11
|
| 卷号 | 936页码:32 |
| ISSN | 0022-1120
|
| 摘要 | In the context of three-dimensional oceanic internal waves, taking topographic effects into account, a modified Berney-Luke equation is proposed for describing internal wave-wave interactions on a sloping bottom. The derived equation is characterised by isotropy and bi-directional propagation, which are absent in the widely used Kadomtsev-Petviashvili equation. Indeed, these disparities are confirmed by numerical results of the diffraction of a truncated internal solitary wave and the evolution of a partially bent solitary wave. However, a good agreement between the numerical results of the modified Benney-Luke equation and those of the primitive equations confirms the validity of our simplified model. Because the stratification in a realistic ocean environment is usually continuous, in contrast to the assumption of a sharp density discontinuity used here, to maintain the kinematical equivalence, a layering scheme for determining the density and thickness of each layer from a continuous stratification is proposed. In addition, the occasionally observed but rarely examined X-shaped internal wave-wave interactions are shown to feature novel wave patterns, where topographic effects modulate the propagation speed, amplitude and waveform. |
| 关键词 | internal waves
solitary waves
|
| DOI | 10.1017/jfm.2022.60
|
| 收录类别 | SCI
; EI
|
| 语种 | 英语
|
| WOS记录号 | WOS:000753973000001
|
| 关键词[WOS] | WATER-WAVES
; MACH REFLECTION
; MODEL
; TOPOGRAPHY
; DERIVATION
; EQUATION
|
| WOS研究方向 | Mechanics
; Physics
|
| WOS类目 | Mechanics
; Physics, Fluids & Plasmas
|
| 资助项目 | National Natural Science Foundation of China[11911530171]
; National Natural Science Foundation of China[11772341]
; National Natural Science Foundation of China[42006016]
; key program of the National Natural Science Foundation of China[12132018]
; key program of the National Natural Science Foundation of China[91958206]
; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040203]
; Natural Science Foundation of Shandong Province[ZR2020QD063]
; China Postdoctoral Science Foundation[2019M660167]
|
| 项目资助者 | National Natural Science Foundation of China
; key program of the National Natural Science Foundation of China
; Strategic Priority Research Program of the Chinese Academy of Sciences
; Natural Science Foundation of Shandong Province
; China Postdoctoral Science Foundation
|
| 论文分区 | 一类/力学重要期刊
|
| 力学所作者排名 | 1
|
| RpAuthor | Wang, Z
|
| 引用统计 |
|
| 文献类型 | 期刊论文
|
| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/88594
|
| 专题 | 流固耦合系统力学重点实验室
|
推荐引用方式
GB/T 7714 |
Yuan,Chunxin,Wang Z. On diffraction and oblique interactions of horizontally two-dimensional internal solitary waves[J]. JOURNAL OF FLUID MECHANICS,2022,936:32.Rp_Au:Wang, Z
|
| APA |
Yuan,Chunxin,&王展.(2022).On diffraction and oblique interactions of horizontally two-dimensional internal solitary waves.JOURNAL OF FLUID MECHANICS,936,32.
|
| MLA |
Yuan,Chunxin,et al."On diffraction and oblique interactions of horizontally two-dimensional internal solitary waves".JOURNAL OF FLUID MECHANICS 936(2022):32.
|
修改评论