|
|
论文:2018,Vol:36,Issue(2):264-269 |
|
|
引用本文： |
|
|
高国兴, 范磊, 王惠刚. 复杂海底结构诱导的非线性内波生成与演进分析[J]. 西北工业大学学报 |
|
|
Gao Guoxing, Fan Lei, Wang Huigang. Analysis of Complex Typography Modulating on Internal Wave's Generation and Propagation[J]. Northwestern polytechnical university |
|
|
|
|
|
|
|
| 复杂海底结构诱导的非线性内波生成与演进分析 |
|
| 高国兴1,2, 范磊1, 王惠刚1 |
|
1. 西北工业大学 航海学院, 陕西 西安 710072;
2. 海军潜艇学院, 山东 青岛 266199 |
| 摘要: |
| 采用非静压近似建立了适应于非线性内波的非静压海洋内波动力学模型，并据此对复杂海底拓扑结构诱导的非线性海洋内波生成与演进进行了模拟计算。通过对配置不同计算条件，给出了2个海脊特征变化时引起的内波密度场分布、相对涡度场分布及内孤立波抵达时间和强度等定量分析结果，为典型内波分析提供了较为准确的数值模拟方法。该研究对于揭示非线性内波生成和传播的规律性具有重要启示作用。 |
| 关键词:
海洋内波
双海脊
非静压近似
|
|
| Analysis of Complex Typography Modulating on Internal Wave's Generation and Propagation |
|
| Gao Guoxing1,2, Fan Lei1, Wang Huigang1 |
|
1. School of Marine Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China;
2. Navy Submarine Academy, Qingdao 266199, China |
| Abstract: |
| We use a non-hydrostatic numerical simulation based on incompressible Navier-Stokes equations to model the generation and evolution of nonlinear internal waves formed as a result of the interaction with double-ridge topography. By employing an analysis on the different-time distribution of density field, related-vorticity field which came from different profile condition of second sill, we can find and quantify the relation between the arriving time and intensity with the second sill parameter such as the depth and extensional factors. The results and progression of the internal wave's generation and propagation show the complexity, and one of the important factors is deriving from the modulating action on the state of the internal waves initial exciting from the first sill. We also present the case of coexist and evolution of "quick wave" and "slow waves". This study to reveal the ocean internal waves generated transmission mechanism is of important value. |
| Key words:
internal waves
double-ridge topography
non-hydrostatic approximation
|
|
| 收稿日期: 2017-06-01
修回日期:
|
| DOI: |
| 基金项目: 国家自然科学基金（61571369，61471299）与水下测控技术重点实验室基金（YSOC261501）资助 |
| 通讯作者:
Email： |
| 作者简介: 高国兴(1972-),海军潜艇学院副教授,主要从事海洋动力学、海洋遥感及其应用研究。
|
|
| 相关功能 |
|
|
|
|
| 作者相关文章 |
|
| 高国兴 在本刊中的所有文章 |
| 范磊 在本刊中的所有文章 |
| 王惠刚 在本刊中的所有文章 |
|
|
|
|
|
|
|
|
参考文献: |
|
|
[1] Alford M H, Lien R C, Simmons H, et al. Speed and Evolution of Nonlinear Internal Waves Transiting the South China Sea[J]. Journal of Physical Oceanography, 2010, 40:1338-1355
[2] Guo C, Chen X, Vlasenko V, et al. Numerical Investigation of Internal Solitary Waves from the Luzon Strait:Generation Process, Mechanism and Three-Dimensional Effects[J]. Ocean Modelling, 2011,38:203-216
[3] Ramp S R, Yang Y, Bahr F. Characterizing the Nonlinear Internal Wave Climate in the Northeastern South China Sea[J]. Nonlinear Processes in Geophysics, 2010, 17:481-498
[4] Xu Z H,Yin B S, Hou Y J. Highly Nonlinear Internal Solitary Waves over Continental Shelf of Northwestern South China Sea[J]. Chinese Journal of Oceanology and Limnology, 2010, 28(5):1049-1054
[5] Vlasenko V, Guo C, Stashchuk N. On the Mechanism of A-Type and B-Type Internal Solitary Wave Generation in the Northern South China Sea[J]. Deep-Sea Research I, 2012, 69:100-112
[6] Mahadevan A, Archer D. Modeling a Limited Region of the Ocean[J]. Journal of Computational Physics, 1998, 145:555-574
[7] Casulli V, Cattani E. Stability, Accuracy and Efficiency of a Semi-Implicit Method for Three-Dimensional Shallow Water Flow[J]. Computers Math Appliciation, 1994, 27(4):99-112
[8] Vlasenko V, Hutter K. Numerical Experiments of the Breaking of Internal Solitary Waves over Slope-Shelf Topography[J]. Journal of Physical Oceanography, 2002, 32:1779-1793
[9] Venayagamoorthy S K, Fringer O B. Numerical Simulations of the Interaction of Internal Waves with a Shelf Break[J]. Physiscs of Fluids,2006,18(7):076603
[10] Fringer O B, Gerritsen M, Street R L. An Unstructured-Grid, Finite-Volume, Nonhydrostatic, Parallel Coastal Ocean Simulator[J]. Ocean Modelling,2006,14:139-173 |
|
|
|
|
|
|
|
